Dépouillements

Communication and computation in buildings / Dietrich, Dietmar in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3577 - 3584 Titre : Communication and computation in buildings : a short introduction and overview Type de document : texte imprimé Auteurs : Dietrich, Dietmar, Auteur ; Bruckner, Dietmar, Auteur ; Zucker, Gerhard, Auteur Année de publication : 2011 Article en page(s) : pp. 3577 - 3584 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Ambient assisted living Building automation (BA) control management Communication networks Embedded systems Energy Field bus Horizontal integration Industries Layered architecture Smart homes (SHs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Building automation (BA) and smart homes (SHs) have traditionally not been a unified field but varied by their origins, legal foundations, different applications, different goals, and national funding programs for basic research. Only within the last years that an international common focus appeared. The following overview gives not only an introduction into the topic of BA but also the distinction to other areas of automation, in which networks of the field level (the sensor and actuator level) play an important role. Finally, the scientific challenges will be mentioned. SHs are referred to when the differences to BA have to be explicitly stressed. This paper is an introduction for the special IEEE Transactions on Industrial Electronics section on BA and shall introduce the reader to this new topic. BA not only has a huge economic potential but also is of significant academic interest today. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5439832 [article] Communication and computation in buildings : a short introduction and overview [texte imprimé] / Dietrich, Dietmar, Auteur ; Bruckner, Dietmar, Auteur ; Zucker, Gerhard, Auteur . - 2011 . - pp. 3577 - 3584. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3577 - 3584 Mots-clés : Ambient assisted living Building automation (BA) control management Communication networks Embedded systems Energy Field bus Horizontal integration Industries Layered architecture Smart homes (SHs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Building automation (BA) and smart homes (SHs) have traditionally not been a unified field but varied by their origins, legal foundations, different applications, different goals, and national funding programs for basic research. Only within the last years that an international common focus appeared. The following overview gives not only an introduction into the topic of BA but also the distinction to other areas of automation, in which networks of the field level (the sensor and actuator level) play an important role. Finally, the scientific challenges will be mentioned. SHs are referred to when the differences to BA have to be explicitly stressed. This paper is an introduction for the special IEEE Transactions on Industrial Electronics section on BA and shall introduce the reader to this new topic. BA not only has a huge economic potential but also is of significant academic interest today. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5439832

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

The three generations of field-level networks—evolution and compatibility issues / Sauter, Thilo in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3585 - 3595 Titre : The three generations of field-level networks—evolution and compatibility issues Type de document : texte imprimé Auteurs : Sauter, Thilo, Auteur Année de publication : 2011 Article en page(s) : pp. 3585 - 3595 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Automation networks Fieldbus systems Hybrid Industrial ethernet Wireless Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Field-level networks have been one of the keys to modern automation systems. Be it in factory, process, or building automation, networks allow for horizontal and vertical integration of distributed devices and functions. This paper reviews the evolution of field-level networks comprising fieldbus systems, industrial Ethernet, and recent industrial wireless networks. The main focus is on demonstrating the continuity in the development of the three generations that ensured backward compatibility at the expense of radical innovation. Given the wide set of modern communication technologies, this paper then discusses how architectures for future automation networks might look. Particular emphasis is put on hybrid architectures for combined wired/wireless networks. A generic concept for integration of multiple wireless segments will be presented that supports seamless roaming for mobile nodes in industrial environment. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5535166 [article] The three generations of field-level networks—evolution and compatibility issues [texte imprimé] / Sauter, Thilo, Auteur . - 2011 . - pp. 3585 - 3595. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3585 - 3595 Mots-clés : Automation networks Fieldbus systems Hybrid Industrial ethernet Wireless Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Field-level networks have been one of the keys to modern automation systems. Be it in factory, process, or building automation, networks allow for horizontal and vertical integration of distributed devices and functions. This paper reviews the evolution of field-level networks comprising fieldbus systems, industrial Ethernet, and recent industrial wireless networks. The main focus is on demonstrating the continuity in the development of the three generations that ensured backward compatibility at the expense of radical innovation. Given the wide set of modern communication technologies, this paper then discusses how architectures for future automation networks might look. Particular emphasis is put on hybrid architectures for combined wired/wireless networks. A generic concept for integration of multiple wireless segments will be presented that supports seamless roaming for mobile nodes in industrial environment. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5535166

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Building-environment control with wireless sensor and actuator networks / Xianghui, Cao in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3596 - 3605 Titre : Building-environment control with wireless sensor and actuator networks : Centralized versus distributed Type de document : texte imprimé Auteurs : Xianghui, Cao, Auteur ; Jiming, Chen, Auteur ; Yang, Xiao, Auteur Année de publication : 2011 Article en page(s) : pp. 3596 - 3605 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Building-environment control Centralized (CC) Distributed (DC) Wireless sensor and actuator networks (WSANs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper considers joint problems of control and communication in wireless sensor and actuator networks (WSANs) for building-environment control systems. In traditional control systems, centralized control (CC) and distributed control (DC) are two major approaches. However, little work has been done in comparing the two approaches in joint problems of control and communication, particularly in WSANs serving as components of control loops. In this paper, we develop a CC scheme in which control decisions are made based on global information and a DC scheme which enables distributed actuators to make control decisions locally. We also develop methods that enable wireless communications among system devices compatible with the control strategies, and propose a method for reducing packet-loss rate. We compare the two schemes using simulations in many aspects. Simulation results show that the DC can achieve a comparable control performance of the CC, while the DC is more robust against packet loss and has lower computational complexity than the CC. Furthermore, the DC has shorter actuation latency than the CC under certain conditions. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5210161 [article] Building-environment control with wireless sensor and actuator networks : Centralized versus distributed [texte imprimé] / Xianghui, Cao, Auteur ; Jiming, Chen, Auteur ; Yang, Xiao, Auteur . - 2011 . - pp. 3596 - 3605. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3596 - 3605 Mots-clés : Building-environment control Centralized (CC) Distributed (DC) Wireless sensor and actuator networks (WSANs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper considers joint problems of control and communication in wireless sensor and actuator networks (WSANs) for building-environment control systems. In traditional control systems, centralized control (CC) and distributed control (DC) are two major approaches. However, little work has been done in comparing the two approaches in joint problems of control and communication, particularly in WSANs serving as components of control loops. In this paper, we develop a CC scheme in which control decisions are made based on global information and a DC scheme which enables distributed actuators to make control decisions locally. We also develop methods that enable wireless communications among system devices compatible with the control strategies, and propose a method for reducing packet-loss rate. We compare the two schemes using simulations in many aspects. Simulation results show that the DC can achieve a comparable control performance of the CC, while the DC is more robust against packet loss and has lower computational complexity than the CC. Furthermore, the DC has shorter actuation latency than the CC under certain conditions. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5210161

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Automated design of building automation systems / Dibowski, Henrik in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3606 - 3613 Titre : Automated design of building automation systems Type de document : texte imprimé Auteurs : Dibowski, Henrik, Auteur ; Ploennigs, Joern, Auteur ; Kabitzsch, Klaus, Auteur Année de publication : 2011 Article en page(s) : pp. 3606 - 3613 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Building automation systems (BASs) Design Interoperability analysis Semantic specification Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The design of large building automation systems (BASs) with thousands of devices is a laborious task with a lot of recurrent works for identical automated rooms. The usage of prefabricated off-the-shelf devices and design patterns simplifies this task nowadays but creates new interoperability problems. As a result, the selection of devices is essential for a good system design but is often limited by a lack of information. This paper introduces a novel automatic design approach for large BASs that covers the device selection, interoperability evaluation, and composition of BASs. It follows a continuous top-down design with different levels of abstraction starting at requirement engineering and ending at a fully developed and industry-spanning BAS design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256330 [article] Automated design of building automation systems [texte imprimé] / Dibowski, Henrik, Auteur ; Ploennigs, Joern, Auteur ; Kabitzsch, Klaus, Auteur . - 2011 . - pp. 3606 - 3613. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3606 - 3613 Mots-clés : Building automation systems (BASs) Design Interoperability analysis Semantic specification Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The design of large building automation systems (BASs) with thousands of devices is a laborious task with a lot of recurrent works for identical automated rooms. The usage of prefabricated off-the-shelf devices and design patterns simplifies this task nowadays but creates new interoperability problems. As a result, the selection of devices is essential for a good system design but is often limited by a lack of information. This paper introduces a novel automatic design approach for large BASs that covers the device selection, interoperability evaluation, and composition of BASs. It follows a continuous top-down design with different levels of abstraction starting at requirement engineering and ending at a fully developed and industry-spanning BAS design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256330

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Safety- and security-critical services in building automation and control systems / Novak, Thomas in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3614 - 3621 Titre : Safety- and security-critical services in building automation and control systems Type de document : texte imprimé Auteurs : Novak, Thomas, Auteur ; Gerstinger, Andreas, Auteur Année de publication : 2011 Article en page(s) : pp. 3614 - 3621 Note générale : Génie éléctrique Langues : Anglais (eng) Mots-clés : Building automation Functional safety Life-cycle engineering System security Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A building automation and control system (BACS) is used to integrate different kinds of services into a single system to provide automated combined services and, consequently, ease maintenance and save costs. Typical services are heating, ventilation, and air conditioning, as well as lighting and shading. Later on, security-critical services and, in recent times, safety-critical ones have also been integrated into the BACS. Today, the two last-mentioned types of services are realized by closed subsystems as part of the BACS. Such an approach makes the management and maintenance of the BACS less efficient and does not allow combined security- and safety-critical (s&s) services. This paper presents a common approach on how to engineer a safety- and security-related building automation technology. It shall be the basis of a BACS that is able to provide combined s&s and standard services. Hence, closed subsystems in the BACS can be avoided, and new services can be offered. Such a new service is delineated, taking existing application standards into consideration. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5196777 [article] Safety- and security-critical services in building automation and control systems [texte imprimé] / Novak, Thomas, Auteur ; Gerstinger, Andreas, Auteur . - 2011 . - pp. 3614 - 3621. Génie éléctrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3614 - 3621 Mots-clés : Building automation Functional safety Life-cycle engineering System security Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A building automation and control system (BACS) is used to integrate different kinds of services into a single system to provide automated combined services and, consequently, ease maintenance and save costs. Typical services are heating, ventilation, and air conditioning, as well as lighting and shading. Later on, security-critical services and, in recent times, safety-critical ones have also been integrated into the BACS. Today, the two last-mentioned types of services are realized by closed subsystems as part of the BACS. Such an approach makes the management and maintenance of the BACS less efficient and does not allow combined security- and safety-critical (s&s) services. This paper presents a common approach on how to engineer a safety- and security-related building automation technology. It shall be the basis of a BACS that is able to provide combined s&s and standard services. Hence, closed subsystems in the BACS can be avoided, and new services can be offered. Such a new service is delineated, taking existing application standards into consideration. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5196777

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Security in building automation systems / Granzer, Wolfgang in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3622 - 3630 Titre : Security in building automation systems Type de document : texte imprimé Auteurs : Granzer, Wolfgang, Auteur ; Praus, Fritz, Auteur ; Kastner, Wolfgang, Auteur Année de publication : 2011 Article en page(s) : pp. 3622 - 3630 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Building automation Embedded networks Integration Security Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Building automation systems are traditionally concerned with the control of heating, ventilation, and air conditioning, as well as lighting and shading, systems. They have their origin in a time where security has been considered as a side issue at best. Nowadays, with the rising desire to integrate security-critical services that were formerly provided by isolated subsystems, security must no longer be neglected. Thus, the development of a comprehensive security concept is of utmost importance. This paper starts with a security threat analysis and identifies the challenges of providing security in the building automation domain. Afterward, the security mechanisms of available standards are thoroughly analyzed. Finally, two approaches that provide both secure communication and secure execution of possibly untrusted control applications are presented. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332331 [article] Security in building automation systems [texte imprimé] / Granzer, Wolfgang, Auteur ; Praus, Fritz, Auteur ; Kastner, Wolfgang, Auteur . - 2011 . - pp. 3622 - 3630. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3622 - 3630 Mots-clés : Building automation Embedded networks Integration Security Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Building automation systems are traditionally concerned with the control of heating, ventilation, and air conditioning, as well as lighting and shading, systems. They have their origin in a time where security has been considered as a side issue at best. Nowadays, with the rising desire to integrate security-critical services that were formerly provided by isolated subsystems, security must no longer be neglected. Thus, the development of a comprehensive security concept is of utmost importance. This paper starts with a security threat analysis and identifies the challenges of providing security in the building automation domain. Afterward, the security mechanisms of available standards are thoroughly analyzed. Finally, two approaches that provide both secure communication and secure execution of possibly untrusted control applications are presented. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332331

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Design and implementation of fault tolerance in the BACnet/IP protocol / Seung, Ho Hong in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3631 - 3638 Titre : Design and implementation of fault tolerance in the BACnet/IP protocol Type de document : texte imprimé Auteurs : Seung, Ho Hong, Auteur ; Songjun, Lee, Auteur Année de publication : 2011 Article en page(s) : pp. 3631 - 3638 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Bilding automation Building and control network (BACnet/IP (B/IP) Communication networks Fault tolerance Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Digital communication networks have become a core technology in advanced building automation systems. The building automation and control network (BACnet) is a standard data communication protocol designed specifically for building automation and control systems. BACnet provides the BACnet/IP (B/IP) protocol for data communication through the Internet. Every B/IP device uses a B/IP broadcast management device (BBMD) to deliver remote or global BACnet broadcast messages. In this paper, we propose a fault-tolerant BBMD for the B/IP protocol. The fault-tolerant BBMD improves the connectivity of B/IP networks because a backup BBMD automatically inherits the role of a defective primary BBMD. The fault-tolerant BBMD was designed to provide backward compatibility with existing B/IP devices. In this paper, we implemented the fault-tolerant BBMD and examined its validity using an experimental model. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5373901 [article] Design and implementation of fault tolerance in the BACnet/IP protocol [texte imprimé] / Seung, Ho Hong, Auteur ; Songjun, Lee, Auteur . - 2011 . - pp. 3631 - 3638. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3631 - 3638 Mots-clés : Bilding automation Building and control network (BACnet/IP (B/IP) Communication networks Fault tolerance Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Digital communication networks have become a core technology in advanced building automation systems. The building automation and control network (BACnet) is a standard data communication protocol designed specifically for building automation and control systems. BACnet provides the BACnet/IP (B/IP) protocol for data communication through the Internet. Every B/IP device uses a B/IP broadcast management device (BBMD) to deliver remote or global BACnet broadcast messages. In this paper, we propose a fault-tolerant BBMD for the B/IP protocol. The fault-tolerant BBMD improves the connectivity of B/IP networks because a backup BBMD automatically inherits the role of a defective primary BBMD. The fault-tolerant BBMD was designed to provide backward compatibility with existing B/IP devices. In this paper, we implemented the fault-tolerant BBMD and examined its validity using an experimental model. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5373901

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Classification of energy consumption in buildings with outlier detection / Xiaoli Li in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3639 - 3644 Titre : Classification of energy consumption in buildings with outlier detection Type de document : texte imprimé Auteurs : Xiaoli Li, Auteur ; Bowers, Chris P., Auteur ; Schnier, Thorsten, Auteur Année de publication : 2011 Article en page(s) : pp. 3639 - 3644 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Canonical variate analysis (CVA) Electricity data Energy management Modeling Outlier detection Prediction Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we propose an intelligent data-analysis method for modeling and prediction of daily electricity consumption in buildings. The objective is to enable a building-management system to be used for forecasting and detection of abnormal energy use. First, an outlier-detection method is proposed to identify abnormally high or low energy use in a building. Then a canonical variate analysis is employed to describe latent variables of daily electricity-consumption profiles, which can be used to group the data sets into different clusters. Finally, a simple classifier is used to predict the daily electricity-consumption profiles. A case study, based on a mixed-use environment, was studied. The results demonstrate that the method proposed in this paper can be used in conjunction with a building-management system to identify abnormal utility consumption and notify building operators in real time. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5175339 [article] Classification of energy consumption in buildings with outlier detection [texte imprimé] / Xiaoli Li, Auteur ; Bowers, Chris P., Auteur ; Schnier, Thorsten, Auteur . - 2011 . - pp. 3639 - 3644. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3639 - 3644 Mots-clés : Canonical variate analysis (CVA) Electricity data Energy management Modeling Outlier detection Prediction Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we propose an intelligent data-analysis method for modeling and prediction of daily electricity consumption in buildings. The objective is to enable a building-management system to be used for forecasting and detection of abnormal energy use. First, an outlier-detection method is proposed to identify abnormally high or low energy use in a building. Then a canonical variate analysis is employed to describe latent variables of daily electricity-consumption profiles, which can be used to group the data sets into different clusters. Finally, a simple classifier is used to predict the daily electricity-consumption profiles. A case study, based on a mixed-use environment, was studied. The results demonstrate that the method proposed in this paper can be used in conjunction with a building-management system to identify abnormal utility consumption and notify building operators in real time. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5175339

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Autonomous perception and decision making in building automation / Velik, Rosemarie in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3645 - 3652 Titre : Autonomous perception and decision making in building automation Type de document : texte imprimé Auteurs : Velik, Rosemarie, Auteur ; Zucker, Gerhard, Auteur Année de publication : 2011 Article en page(s) : pp. 3645 - 3652 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Autonomous decision making perception Bionics Building automation Cognitive Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : System complexity has reached a level where it is hard to apply existing information analysis methods to automatically derive appropriate decisions. Building automation is on the verge of being unable to extract relevant information and control a building accordingly. Many different industries in today's automation could provide information by means of different sensors, but the ability to integrate this information is missing. This paper describes approaches on how to cope with increased complexity by introducing models for perception and decision making that are based on findings in neuroscience and psychoanalysis, scientific disciplines that are far-off from engineering but nevertheless promise valuable contributions to intelligent automation. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5373925 [article] Autonomous perception and decision making in building automation [texte imprimé] / Velik, Rosemarie, Auteur ; Zucker, Gerhard, Auteur . - 2011 . - pp. 3645 - 3652. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3645 - 3652 Mots-clés : Autonomous decision making perception Bionics Building automation Cognitive Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : System complexity has reached a level where it is hard to apply existing information analysis methods to automatically derive appropriate decisions. Building automation is on the verge of being unable to extract relevant information and control a building accordingly. Many different industries in today's automation could provide information by means of different sensors, but the ability to integrate this information is missing. This paper describes approaches on how to cope with increased complexity by introducing models for perception and decision making that are based on findings in neuroscience and psychoanalysis, scientific disciplines that are far-off from engineering but nevertheless promise valuable contributions to intelligent automation. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5373925

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Behavior learning in dwelling environments with hidden Markov models / Bruckner, Dietmar in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3653 - 3660 Titre : Behavior learning in dwelling environments with hidden Markov models Type de document : texte imprimé Auteurs : Bruckner, Dietmar, Auteur ; Velik, Rosemarie, Auteur Année de publication : 2011 Article en page(s) : pp. 3653 - 3660 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Semantic networks Surveillance Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Building automation systems (BASs) have seen widespread distribution also in private residences over the past few years. The ongoing technological developments in the fields of sensors, actuators, as well as embedded systems lead to more and more complex and larger systems. These systems allow ever-better observations of activities in buildings with a rapidly growing number of possible applications. Unfortunately, control systems with lots of parameters, which would be normally utilized, are hard to describe and-from a context-deriving view-hard to understand with standard control engineering techniques. This paper presents an approach to how statistical methods can be applied to (future) BASs to extract semantic and context information from sensor data. A hierarchical model structure based on hidden Markov models is proposed to establish a framework. The lower levels of the model structure are used to observe the sensor values themselves, whereas the higher levels provide a basis for the semantic interpretation of what is happening in the building. Ultimately, the system should be able to give a condensed overview of the daily routine of a sensor or the process that the sensor observes. While knowing the context of the sensor, a human operator can easily interpret the result. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5437257 [article] Behavior learning in dwelling environments with hidden Markov models [texte imprimé] / Bruckner, Dietmar, Auteur ; Velik, Rosemarie, Auteur . - 2011 . - pp. 3653 - 3660. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3653 - 3660 Mots-clés : Semantic networks Surveillance Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Building automation systems (BASs) have seen widespread distribution also in private residences over the past few years. The ongoing technological developments in the fields of sensors, actuators, as well as embedded systems lead to more and more complex and larger systems. These systems allow ever-better observations of activities in buildings with a rapidly growing number of possible applications. Unfortunately, control systems with lots of parameters, which would be normally utilized, are hard to describe and-from a context-deriving view-hard to understand with standard control engineering techniques. This paper presents an approach to how statistical methods can be applied to (future) BASs to extract semantic and context information from sensor data. A hierarchical model structure based on hidden Markov models is proposed to establish a framework. The lower levels of the model structure are used to observe the sensor values themselves, whereas the higher levels provide a basis for the semantic interpretation of what is happening in the building. Ultimately, the system should be able to give a condensed overview of the daily routine of a sensor or the process that the sensor observes. While knowing the context of the sensor, a human operator can easily interpret the result. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5437257

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Neurosymbolic alerting rules / Velik, Rosemarie in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3661 - 3668 Titre : Neurosymbolic alerting rules Type de document : texte imprimé Auteurs : Velik, Rosemarie, Auteur ; Boley, Harold, Auteur Année de publication : 2011 Article en page(s) : pp. 3661 - 3668 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Building automation Decision making Neurosymbolic networks Perception Rule markup language (RuleML) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Future building automation will require complex (humanlike) perception and decision-making processes not being feasible with classical approaches. In this paper, we address both the perception and the decision-making process and present an alerting model that reacts to perceived situations in a building with decisions about possible alerts. Perception is based on the neurosymbolic information-processing model, which detects candidate alerts. Integrated with perception, decision making is based on the rule model of the Rule Markup Language, which computes alerts to relevant building occupants about current opportunities and risks. A general model of neurosymbolic alerting rules is developed and exemplified with a use case of building alerts. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5422660 [article] Neurosymbolic alerting rules [texte imprimé] / Velik, Rosemarie, Auteur ; Boley, Harold, Auteur . - 2011 . - pp. 3661 - 3668. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3661 - 3668 Mots-clés : Building automation Decision making Neurosymbolic networks Perception Rule markup language (RuleML) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Future building automation will require complex (humanlike) perception and decision-making processes not being feasible with classical approaches. In this paper, we address both the perception and the decision-making process and present an alerting model that reacts to perceived situations in a building with decisions about possible alerts. Perception is based on the neurosymbolic information-processing model, which detects candidate alerts. Integrated with perception, decision making is based on the rule model of the Rule Markup Language, which computes alerts to relevant building occupants about current opportunities and risks. A general model of neurosymbolic alerting rules is developed and exemplified with a use case of building alerts. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5422660

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

A DC-to-three-phase-AC high-frequency link converter with compensation for nonlinear distortion / De, Dipankar in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3669 - 3677 Titre : A DC-to-three-phase-AC high-frequency link converter with compensation for nonlinear distortion Type de document : texte imprimé Auteurs : De, Dipankar, Auteur ; Ramanarayanan, Venkataramanan, Auteur Année de publication : 2011 Article en page(s) : pp. 3669 - 3677 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Commutation Dc/ac power conversion Digital controller Modified modulating signal Nonlinear distorsion Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper focuses on a new high-frequency (HF) link dc-to-three-phase-ac power converter. The least number of switching devices among other HF link dc-to-three-phase-ac converters, improved power density due to the absence of devices of bidirectional voltage-blocking capability, simple commutation requirements, and isolation between input and output are the integral features of this topology. The commutation process of the converter requires zero portions in the link voltage. This causes a nonlinear distortion in the output three-phase voltages. The mathematical analysis is carried out to investigate the problem, and suitable compensation in modulating signal is proposed for different types of carrier. Along with the modified modulator structure, a synchronously rotating reference-frame-based control scheme is adopted for the three-phase ac side in order to achieve high dynamic performance. The effectiveness of the proposed scheme has been investigated and verified through computer simulations and experimental results with 1-kVA prototype. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409663 [article] A DC-to-three-phase-AC high-frequency link converter with compensation for nonlinear distortion [texte imprimé] / De, Dipankar, Auteur ; Ramanarayanan, Venkataramanan, Auteur . - 2011 . - pp. 3669 - 3677. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3669 - 3677 Mots-clés : Commutation Dc/ac power conversion Digital controller Modified modulating signal Nonlinear distorsion Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper focuses on a new high-frequency (HF) link dc-to-three-phase-ac power converter. The least number of switching devices among other HF link dc-to-three-phase-ac converters, improved power density due to the absence of devices of bidirectional voltage-blocking capability, simple commutation requirements, and isolation between input and output are the integral features of this topology. The commutation process of the converter requires zero portions in the link voltage. This causes a nonlinear distortion in the output three-phase voltages. The mathematical analysis is carried out to investigate the problem, and suitable compensation in modulating signal is proposed for different types of carrier. Along with the modified modulator structure, a synchronously rotating reference-frame-based control scheme is adopted for the three-phase ac side in order to achieve high dynamic performance. The effectiveness of the proposed scheme has been investigated and verified through computer simulations and experimental results with 1-kVA prototype. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409663

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Harmonic elimination of cascade multilevel inverters with nonequal DC sources using particle swarm optimization / Taghizadeh, H. in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3678 - 3684 Titre : Harmonic elimination of cascade multilevel inverters with nonequal DC sources using particle swarm optimization Type de document : texte imprimé Auteurs : Taghizadeh, H., Auteur ; Hagh, M. Tarafdar, Auteur Année de publication : 2011 Article en page(s) : pp. 3678 - 3684 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Multilevel inverter Particle swarm optimization (PSO) Selective harmonic elimination (SHE) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the elimination of harmonics in a cascade multilevel inverter by considering the nonequality of separated dc sources by using particle swarm optimization is presented. Solving a nonlinear transcendental equation set describing the harmonic-elimination problem with nonequal dc sources reaches the limitation of contemporary computer algebra software tools using the resultant method. The proposed approach in this paper can be applied to solve the problem in a simpler manner, even when the number of switching angles is increased and the determination of these angles using the resultant theory approach is not possible. Theoretical results are verified by experiments and simulations for an 11-level H-bridge inverter. Results show that the proposed method does effectively eliminate a great number of specific harmonics, and the output voltage is resulted in low total harmonic distortion. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409602 [article] Harmonic elimination of cascade multilevel inverters with nonequal DC sources using particle swarm optimization [texte imprimé] / Taghizadeh, H., Auteur ; Hagh, M. Tarafdar, Auteur . - 2011 . - pp. 3678 - 3684. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3678 - 3684 Mots-clés : Multilevel inverter Particle swarm optimization (PSO) Selective harmonic elimination (SHE) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the elimination of harmonics in a cascade multilevel inverter by considering the nonequality of separated dc sources by using particle swarm optimization is presented. Solving a nonlinear transcendental equation set describing the harmonic-elimination problem with nonequal dc sources reaches the limitation of contemporary computer algebra software tools using the resultant method. The proposed approach in this paper can be applied to solve the problem in a simpler manner, even when the number of switching angles is increased and the determination of these angles using the resultant theory approach is not possible. Theoretical results are verified by experiments and simulations for an 11-level H-bridge inverter. Results show that the proposed method does effectively eliminate a great number of specific harmonics, and the output voltage is resulted in low total harmonic distortion. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409602

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Stability and bandwidth implications of digitally controlled grid-connected parallel inverters / Turner, Robert in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3685 - 3694 Titre : Stability and bandwidth implications of digitally controlled grid-connected parallel inverters Type de document : texte imprimé Auteurs : Turner, Robert, Auteur ; Walton, Simon, Auteur ; Duke, Richard, Auteur Année de publication : 2011 Article en page(s) : pp. 3685 - 3694 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Digital control Parallel architectures Stability Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The increasing use of grid-connected inverter systems is resulting in a desire for parallel-connected inverters that offer greater power capacity while maintaining the high control bandwidth achieved by individual inverters. This paper demonstrates that, in addition to the traditional stability and bandwidth limitations of digitally controlled inverters, further stability and bandwidth limitations occur when LCL inverters with a common set point are connected in parallel to a grid. This paper provides detailed discrete-time derivations for parallel grid-connected inverters and uncovers stability and bandwidth limitations that only occur in grid-connected applications and are not apparent if the system is studied in continuous time. This paper demonstrates that, in a typical application, the voltage bandwidth of an LCL parallel inverter array is 25% lower than a single module or LC parallel configuration. Both simulations and hardware demonstrations on a 105-kVA parallel three-module grid-connected system confirm the findings. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409642 [article] Stability and bandwidth implications of digitally controlled grid-connected parallel inverters [texte imprimé] / Turner, Robert, Auteur ; Walton, Simon, Auteur ; Duke, Richard, Auteur . - 2011 . - pp. 3685 - 3694. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3685 - 3694 Mots-clés : Digital control Parallel architectures Stability Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The increasing use of grid-connected inverter systems is resulting in a desire for parallel-connected inverters that offer greater power capacity while maintaining the high control bandwidth achieved by individual inverters. This paper demonstrates that, in addition to the traditional stability and bandwidth limitations of digitally controlled inverters, further stability and bandwidth limitations occur when LCL inverters with a common set point are connected in parallel to a grid. This paper provides detailed discrete-time derivations for parallel grid-connected inverters and uncovers stability and bandwidth limitations that only occur in grid-connected applications and are not apparent if the system is studied in continuous time. This paper demonstrates that, in a typical application, the voltage bandwidth of an LCL parallel inverter array is 25% lower than a single module or LC parallel configuration. Both simulations and hardware demonstrations on a 105-kVA parallel three-module grid-connected system confirm the findings. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409642

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Minimization of the power losses in IGBT multiphase inverters with carrier-based pulsewidth modulation / Zarri, Luca in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3695 - 3706 Titre : Minimization of the power losses in IGBT multiphase inverters with carrier-based pulsewidth modulation Type de document : texte imprimé Auteurs : Zarri, Luca, Auteur ; Mengoni, Michele, Auteur ; Tani, Angelo, Auteur Année de publication : 2011 Article en page(s) : pp. 3695 - 3706 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Efficiency Modulation strategy Multiphase drive Pulsewidth modulation (PWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Nowadays, there is an increasing interest toward multiphase drives, particularly for medium- and high-power applications. In this paper, some modulation strategies for multiphase voltage-source inverters are compared and the modulation strategy with the minimum switching losses is determined. If the switching devices of the inverter are insulated-gate bipolar transistors or bipolar junction transistors, this modulation strategy turns out to be the one with the minimum total power losses. Simulation and experimental results confirm the validity of the analytical approach and the feasibility of the proposed modulation strategy. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409603 [article] Minimization of the power losses in IGBT multiphase inverters with carrier-based pulsewidth modulation [texte imprimé] / Zarri, Luca, Auteur ; Mengoni, Michele, Auteur ; Tani, Angelo, Auteur . - 2011 . - pp. 3695 - 3706. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3695 - 3706 Mots-clés : Efficiency Modulation strategy Multiphase drive Pulsewidth modulation (PWM) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Nowadays, there is an increasing interest toward multiphase drives, particularly for medium- and high-power applications. In this paper, some modulation strategies for multiphase voltage-source inverters are compared and the modulation strategy with the minimum switching losses is determined. If the switching devices of the inverter are insulated-gate bipolar transistors or bipolar junction transistors, this modulation strategy turns out to be the one with the minimum total power losses. Simulation and experimental results confirm the validity of the analytical approach and the feasibility of the proposed modulation strategy. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409603

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

A hybrid multilevel inverter topology for an open-end winding induction-motor drive using two-level inverters in series with a capacitor-fed H-bridge cell / Sivakumar, K. in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3707 - 3714 Titre : A hybrid multilevel inverter topology for an open-end winding induction-motor drive using two-level inverters in series with a capacitor-fed H-bridge cell Type de document : texte imprimé Auteurs : Sivakumar, K., Auteur ; Das, Anandarup, Auteur ; Ramchand, Rijil, Auteur Année de publication : 2011 Article en page(s) : pp. 3707 - 3714 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : H-bridge Multilevel inverter Open-end winding induction motor (IM) drive Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, a new five-level inverter topology for open-end winding induction-motor (IM) drive is proposed. The open-end winding IM is fed from one end with a two-level inverter in series with a capacitor-fed H-bridge cell, while the other end is connected to a conventional two-level inverter. The combined inverter system produces voltage space-vector locations identical to that of a conventional five-level inverter. A total of 2744 space-vector combinations are distributed over 61 space-vector locations in the proposed scheme. With such a high number of switching state redundancies, it is possible to balance the H-bridge capacitor voltages under all operating conditions including overmodulation region. In addition to that, the proposed topology eliminates 18 clamping diodes having different voltage ratings compared with the neutral point clamped inverter. On the other hand, it requires only one capacitor bank per phase, whereas the flying-capacitor scheme for a five-level topology requires more than one capacitor bank per phase. The proposed inverter topology can be operated as a three-level inverter for full modulation range, in case of any switch failure in the capacitor-fed H-bridge cell. This will increase the reliability of the system. The proposed scheme is experimentally verified on a four-pole 5-hp IM drive. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409661 [article] A hybrid multilevel inverter topology for an open-end winding induction-motor drive using two-level inverters in series with a capacitor-fed H-bridge cell [texte imprimé] / Sivakumar, K., Auteur ; Das, Anandarup, Auteur ; Ramchand, Rijil, Auteur . - 2011 . - pp. 3707 - 3714. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3707 - 3714 Mots-clés : H-bridge Multilevel inverter Open-end winding induction motor (IM) drive Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, a new five-level inverter topology for open-end winding induction-motor (IM) drive is proposed. The open-end winding IM is fed from one end with a two-level inverter in series with a capacitor-fed H-bridge cell, while the other end is connected to a conventional two-level inverter. The combined inverter system produces voltage space-vector locations identical to that of a conventional five-level inverter. A total of 2744 space-vector combinations are distributed over 61 space-vector locations in the proposed scheme. With such a high number of switching state redundancies, it is possible to balance the H-bridge capacitor voltages under all operating conditions including overmodulation region. In addition to that, the proposed topology eliminates 18 clamping diodes having different voltage ratings compared with the neutral point clamped inverter. On the other hand, it requires only one capacitor bank per phase, whereas the flying-capacitor scheme for a five-level topology requires more than one capacitor bank per phase. The proposed inverter topology can be operated as a three-level inverter for full modulation range, in case of any switch failure in the capacitor-fed H-bridge cell. This will increase the reliability of the system. The proposed scheme is experimentally verified on a four-pole 5-hp IM drive. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409661

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Rotor position and speed estimation of a variable structure direct-torque-controlled IPM synchronous motor drive at very low speeds including standstill / Sayeef, Saad in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3715 - 3723 Titre : Rotor position and speed estimation of a variable structure direct-torque-controlled IPM synchronous motor drive at very low speeds including standstill Type de document : texte imprimé Auteurs : Sayeef, Saad, Auteur ; Foo, Gilbert, Auteur ; Muhammed Fazlur Rahman, Auteur Année de publication : 2011 Article en page(s) : pp. 3715 - 3723 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Direct torque control (DTC) Sensorless Signal injection Variable structure Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The performance of a speed sensorless variable structure direct-torque-controlled interior permanent magnet synchronous motor drive at very low speeds including standstill is investigated in this paper. The rotor position and speed are estimated using a high-frequency (HF) signal injection algorithm at low speeds and a sliding observer at medium to high speeds. The changeover between these two algorithms is performed using a weighting function which smoothly hands over the estimated rotor position information for stator flux and torque estimation purposes. Experiments were performed to test the effectiveness of the proposed HF signal injection algorithm, and results show that the sensorless drive is capable of accurately estimating the position and speed at very low speeds including standstill. The implementation of the changeover algorithm to switch between the two observers at low and high speeds has enabled sensorless operation of the drive from zero to base speed. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409588 [article] Rotor position and speed estimation of a variable structure direct-torque-controlled IPM synchronous motor drive at very low speeds including standstill [texte imprimé] / Sayeef, Saad, Auteur ; Foo, Gilbert, Auteur ; Muhammed Fazlur Rahman, Auteur . - 2011 . - pp. 3715 - 3723. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3715 - 3723 Mots-clés : Direct torque control (DTC) Sensorless Signal injection Variable structure Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The performance of a speed sensorless variable structure direct-torque-controlled interior permanent magnet synchronous motor drive at very low speeds including standstill is investigated in this paper. The rotor position and speed are estimated using a high-frequency (HF) signal injection algorithm at low speeds and a sliding observer at medium to high speeds. The changeover between these two algorithms is performed using a weighting function which smoothly hands over the estimated rotor position information for stator flux and torque estimation purposes. Experiments were performed to test the effectiveness of the proposed HF signal injection algorithm, and results show that the sensorless drive is capable of accurately estimating the position and speed at very low speeds including standstill. The implementation of the changeover algorithm to switch between the two observers at low and high speeds has enabled sensorless operation of the drive from zero to base speed. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409588

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Design of delta-modulated generalized frequency converter / Agarwal, Anshul in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3724 - 3729 Titre : Design of delta-modulated generalized frequency converter Type de document : texte imprimé Auteurs : Agarwal, Anshul, Auteur ; Agarwal, Vineeta, Auteur Année de publication : 2011 Article en page(s) : pp. 3724 - 3729 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Cycloinverter Delta modulation Harmonic reduction Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a novel power electronic application, which is an IGBT-based frequency converter that performs the function of both cycloconverter and cycloinverter by changing the 2-b input parameter. It finds its application in speed control of induction motor, induction heating, fluorescent lighting, ballast, high-frequency power supplies, and so many other applications. A methodology is developed to generate the trigger signals for various IGBTs used in frequency converters such that the circuit is not restricted to a particular value of output frequency but it can produce any output frequency that is an integer multiple of the input supply frequency. The output of the converter has been improved using delta-modulation technique. Hardware design is obtained using readily available ICs and other components. The trigger circuit has been tested qualitatively by observing waveforms on CRO. The operation of the proposed system has been found to be satisfactory. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409606 [article] Design of delta-modulated generalized frequency converter [texte imprimé] / Agarwal, Anshul, Auteur ; Agarwal, Vineeta, Auteur . - 2011 . - pp. 3724 - 3729. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3724 - 3729 Mots-clés : Cycloinverter Delta modulation Harmonic reduction Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a novel power electronic application, which is an IGBT-based frequency converter that performs the function of both cycloconverter and cycloinverter by changing the 2-b input parameter. It finds its application in speed control of induction motor, induction heating, fluorescent lighting, ballast, high-frequency power supplies, and so many other applications. A methodology is developed to generate the trigger signals for various IGBTs used in frequency converters such that the circuit is not restricted to a particular value of output frequency but it can produce any output frequency that is an integer multiple of the input supply frequency. The output of the converter has been improved using delta-modulation technique. Hardware design is obtained using readily available ICs and other components. The trigger circuit has been tested qualitatively by observing waveforms on CRO. The operation of the proposed system has been found to be satisfactory. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409606

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Design and performance considerations of PFC switching regulators based on noncascading structures / Cheung, Martin K. H. in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3730 - 3745 Titre : Design and performance considerations of PFC switching regulators based on noncascading structures Type de document : texte imprimé Auteurs : Cheung, Martin K. H., Auteur ; Chow, Martin H. L., Auteur ; Tse, Chi K., Auteur Année de publication : 2011 Article en page(s) : pp. 3730 - 3745 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : AC/DC converter Efficiency Harmonic distortion Load transient Noncascading structure Power factor correction (PFC) Voltage regulation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper systematically explores the performances of power-factor-correction (PFC) switching regulators based on noncascading structures in terms of efficiency, input-current harmonic distortion, and load voltage regulation. The investigation begins with simplified power-flow diagrams, which represent the noncascading PFC switching regulators and describe the essential features of the noncascading PFC switching regulators to achieve PFC and voltage regulation. Based on these diagrams, the noncascading PFC switching regulators can be classified into three categories, each offering a different set of performances. The first category permits a tradeoff between the efficiency and the input-current harmonic distortion, the second permits a tradeoff between the efficiency and the size of the storage element for the load voltage regulation, and the third allows a tradeoff among all the performances. With detailed analyses through analytical approaches, simulation results illustrate the performances of these three categories of noncascading PFC switching regulators. An experimental prototype of the third category has been built to validate the analyses. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409672 [article] Design and performance considerations of PFC switching regulators based on noncascading structures [texte imprimé] / Cheung, Martin K. H., Auteur ; Chow, Martin H. L., Auteur ; Tse, Chi K., Auteur . - 2011 . - pp. 3730 - 3745. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3730 - 3745 Mots-clés : AC/DC converter Efficiency Harmonic distortion Load transient Noncascading structure Power factor correction (PFC) Voltage regulation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper systematically explores the performances of power-factor-correction (PFC) switching regulators based on noncascading structures in terms of efficiency, input-current harmonic distortion, and load voltage regulation. The investigation begins with simplified power-flow diagrams, which represent the noncascading PFC switching regulators and describe the essential features of the noncascading PFC switching regulators to achieve PFC and voltage regulation. Based on these diagrams, the noncascading PFC switching regulators can be classified into three categories, each offering a different set of performances. The first category permits a tradeoff between the efficiency and the input-current harmonic distortion, the second permits a tradeoff between the efficiency and the size of the storage element for the load voltage regulation, and the third allows a tradeoff among all the performances. With detailed analyses through analytical approaches, simulation results illustrate the performances of these three categories of noncascading PFC switching regulators. An experimental prototype of the third category has been built to validate the analyses. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409672

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Design of power converters by optimization under multiphysic constraints / Larouci, Chérif in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3746 - 3753 Titre : Design of power converters by optimization under multiphysic constraints : application to a two-time-scale AC/DC–DC converter Type de document : texte imprimé Auteurs : Larouci, Chérif, Auteur ; Boukhnifer, Moussa, Auteur ; Chaibet, Ahmed, Auteur Année de publication : 2011 Article en page(s) : pp. 3746 - 3753 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Analytical models Design of power converters Multiphysic constraints Optimization Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The aim of this paper is to present an optimization-under-constraints approach to design power converters. In fact, the time-domain simulation is very useful to evaluate the performances of power converters when the design solution area of the studied converter is much reduced due to the designer's experience and when only few design aspects are considered. However, the design of today's power converters is more and more complicated because it needs to consider multiphysic and multidomain constraints. In this context, a design approach using optimization under constraints allows exploring a large solution area by considering the multiphysic aspect and a high number of optimization parameters. In this way, this paper proposes the use of analytical models to carry out a compromise between the model accuracy and the computing time when optimizing power converters under volume, electromagnetic compatibility, efficiency, thermal, and control constraints. This approach is applied to optimize a two-time-scale flyback converter. The optimized converter is implemented, and the proposed approach is validated by measurements. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409685 [article] Design of power converters by optimization under multiphysic constraints : application to a two-time-scale AC/DC–DC converter [texte imprimé] / Larouci, Chérif, Auteur ; Boukhnifer, Moussa, Auteur ; Chaibet, Ahmed, Auteur . - 2011 . - pp. 3746 - 3753. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3746 - 3753 Mots-clés : Analytical models Design of power converters Multiphysic constraints Optimization Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The aim of this paper is to present an optimization-under-constraints approach to design power converters. In fact, the time-domain simulation is very useful to evaluate the performances of power converters when the design solution area of the studied converter is much reduced due to the designer's experience and when only few design aspects are considered. However, the design of today's power converters is more and more complicated because it needs to consider multiphysic and multidomain constraints. In this context, a design approach using optimization under constraints allows exploring a large solution area by considering the multiphysic aspect and a high number of optimization parameters. In this way, this paper proposes the use of analytical models to carry out a compromise between the model accuracy and the computing time when optimizing power converters under volume, electromagnetic compatibility, efficiency, thermal, and control constraints. This approach is applied to optimize a two-time-scale flyback converter. The optimized converter is implemented, and the proposed approach is validated by measurements. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409685

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Two-stage isolated switch-mode power supply with high efficiency and high input power factor / Gallo, Carlos Alberto in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3754 - 3766 Titre : Two-stage isolated switch-mode power supply with high efficiency and high input power factor Type de document : texte imprimé Auteurs : Gallo, Carlos Alberto, Auteur ; Tofoli, Fernando Lessa, Auteur ; Pinto, Joao Antonio Correa, Auteur Année de publication : 2011 Article en page(s) : pp. 3754 - 3766 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Harmonics Power factor correction (PFC) Soft switching Switch-mode power supply (SMPS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents the conception and analysis of a switch-mode power supply (SMPS) with desirable characteristics of high-frequency isolation, high input power factor, low harmonic distortion, and high efficiency. Nearly unity input power factor can be obtained by using an interleaved boost converter associated with a nondissipative snubber, as high efficiency of the ac-dc front-end stage results. Additionally, a soft-switching full-bridge topology performs the dc-dc conversion, providing isolation to the SMPS by using a high-frequency transformer. By cascading both stages, the aforementioned characteristics are achieved. Theoretical background on each one of the converters is presented, and experimental results obtained from a laboratory prototype are presented and discussed in order to validate the proposal. In addition, the evaluation tests demonstrate the operation with nearly unity power factor, high efficiency, and good dynamic response over a wide load range. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409601 [article] Two-stage isolated switch-mode power supply with high efficiency and high input power factor [texte imprimé] / Gallo, Carlos Alberto, Auteur ; Tofoli, Fernando Lessa, Auteur ; Pinto, Joao Antonio Correa, Auteur . - 2011 . - pp. 3754 - 3766. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3754 - 3766 Mots-clés : Harmonics Power factor correction (PFC) Soft switching Switch-mode power supply (SMPS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents the conception and analysis of a switch-mode power supply (SMPS) with desirable characteristics of high-frequency isolation, high input power factor, low harmonic distortion, and high efficiency. Nearly unity input power factor can be obtained by using an interleaved boost converter associated with a nondissipative snubber, as high efficiency of the ac-dc front-end stage results. Additionally, a soft-switching full-bridge topology performs the dc-dc conversion, providing isolation to the SMPS by using a high-frequency transformer. By cascading both stages, the aforementioned characteristics are achieved. Theoretical background on each one of the converters is presented, and experimental results obtained from a laboratory prototype are presented and discussed in order to validate the proposal. In addition, the evaluation tests demonstrate the operation with nearly unity power factor, high efficiency, and good dynamic response over a wide load range. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409601

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Feedback-feedforward PI-type iterative learning control strategy for hybrid active power filter with injection circuit / An, Luo in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3767 - 3779 Titre : Feedback-feedforward PI-type iterative learning control strategy for hybrid active power filter with injection circuit Type de document : texte imprimé Auteurs : An, Luo, Auteur ; Xianyong, Xu, Auteur ; Lu, Fang, Auteur Année de publication : 2011 Article en page(s) : pp. 3767 - 3779 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : D-type learning law Forgetting factor Fuzzy adjustor Hybrid active power filter (APF) PI-type iterative control Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the configuration characteristic of Hybrid active power filter (APF) with injection circuit (IHAPF) is analyzed, as well as its current closed-loop control model is established. Because of the character of reperiod of current harmonics in steady-load power system, the iterative learning control algorithm based on the PI-type learning law is presented. The systemic robustness is enhanced by using a forgetting factor. In order to improve the dynamic performance of a control system, a feedforward based on the D-type learning law of referenced current error by fuzzy reasoning is proposed. The system of the IHAPF with the proposed control strategy has been applied in a steel plant in Guangxi, China. Simulation and industrial application results show that the IHAPF with the proposed control method is not only easy to calculate and implement but also very effective in improving the performance of the filter. Meanwhile, IHAPF shows great promise in reducing harmonics and improving power factor with a relatively low capacity of APF. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409664 [article] Feedback-feedforward PI-type iterative learning control strategy for hybrid active power filter with injection circuit [texte imprimé] / An, Luo, Auteur ; Xianyong, Xu, Auteur ; Lu, Fang, Auteur . - 2011 . - pp. 3767 - 3779. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3767 - 3779 Mots-clés : D-type learning law Forgetting factor Fuzzy adjustor Hybrid active power filter (APF) PI-type iterative control Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the configuration characteristic of Hybrid active power filter (APF) with injection circuit (IHAPF) is analyzed, as well as its current closed-loop control model is established. Because of the character of reperiod of current harmonics in steady-load power system, the iterative learning control algorithm based on the PI-type learning law is presented. The systemic robustness is enhanced by using a forgetting factor. In order to improve the dynamic performance of a control system, a feedforward based on the D-type learning law of referenced current error by fuzzy reasoning is proposed. The system of the IHAPF with the proposed control strategy has been applied in a steel plant in Guangxi, China. Simulation and industrial application results show that the IHAPF with the proposed control method is not only easy to calculate and implement but also very effective in improving the performance of the filter. Meanwhile, IHAPF shows great promise in reducing harmonics and improving power factor with a relatively low capacity of APF. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409664

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Active low-frequency ripple control for clean-energy power-conditioning mechanism / Rong-Jong Wai in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3780 - 3792 Titre : Active low-frequency ripple control for clean-energy power-conditioning mechanism Type de document : texte imprimé Auteurs : Rong-Jong Wai, Auteur ; Chun-Yu, Lin, Auteur Année de publication : 2011 Article en page(s) : pp. 3780 - 3792 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Adaptive linear (ADLINE) neural network Clean energy Low-frequency ripple control Neural filter Power condition Total sliding-mode (TSMC) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper focuses on the design of an active low-frequency ripple control for a clean-energy power-conditioning mechanism with an aim to protect clean-energy sources (e.g., solar photovoltaics, fuel cells, etc.) from the severe damage of current-ripple propagation to expand their life span. First, a simplified circuit for representing the current-ripple phenomenon inside a general power conditioner including a dc/dc converter and a dc/ac inverter is derived, and the dynamic model of the active low-frequency ripple-control circuit is analyzed. Moreover, an adaptive linear neural network is taken as a neural filter to generate the compensation current command, and a total sliding-mode controller is designed to manipulate the ripple-control circuit for injecting a suitable compensation current into the high-voltage bus of the conditioner. In addition, the effectiveness of the proposed active low-frequency ripple-control scheme is verified by numerical simulations and experimental results. Its superiority is indicated in comparison with a conventional high-pass filter and a proportional-integral controller. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409662 [article] Active low-frequency ripple control for clean-energy power-conditioning mechanism [texte imprimé] / Rong-Jong Wai, Auteur ; Chun-Yu, Lin, Auteur . - 2011 . - pp. 3780 - 3792. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3780 - 3792 Mots-clés : Adaptive linear (ADLINE) neural network Clean energy Low-frequency ripple control Neural filter Power condition Total sliding-mode (TSMC) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper focuses on the design of an active low-frequency ripple control for a clean-energy power-conditioning mechanism with an aim to protect clean-energy sources (e.g., solar photovoltaics, fuel cells, etc.) from the severe damage of current-ripple propagation to expand their life span. First, a simplified circuit for representing the current-ripple phenomenon inside a general power conditioner including a dc/dc converter and a dc/ac inverter is derived, and the dynamic model of the active low-frequency ripple-control circuit is analyzed. Moreover, an adaptive linear neural network is taken as a neural filter to generate the compensation current command, and a total sliding-mode controller is designed to manipulate the ripple-control circuit for injecting a suitable compensation current into the high-voltage bus of the conditioner. In addition, the effectiveness of the proposed active low-frequency ripple-control scheme is verified by numerical simulations and experimental results. Its superiority is indicated in comparison with a conventional high-pass filter and a proportional-integral controller. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409662

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Reduced-order observer design for servo system using duality to discrete-time sliding-surface design / Mehta, A. J. in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3793 - 3800 Titre : Reduced-order observer design for servo system using duality to discrete-time sliding-surface design Type de document : texte imprimé Auteurs : Mehta, A. J., Auteur ; Bandyopadhyay, B., Auteur ; Inoue, A., Auteur Année de publication : 2011 Article en page(s) : pp. 3793 - 3800 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Duality between reduced order observer and sliding surface design Reduced Servo system Variable structure systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a design method of a discrete-time reduced-order observer using the duality to discrete-time sliding-surface design. First, the duality between the coefficients of the discrete-time reduced-order observer and the sliding-surface design is established, and then, the design method for the observer using the Riccati equation is explained. A discrete-time sliding-mode controller based on the proposed observer is designed and tested on a laboratory-type experimental servo system. The results show the efficacy of the reduced-order observer designed by the duality concept. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409578 [article] Reduced-order observer design for servo system using duality to discrete-time sliding-surface design [texte imprimé] / Mehta, A. J., Auteur ; Bandyopadhyay, B., Auteur ; Inoue, A., Auteur . - 2011 . - pp. 3793 - 3800. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3793 - 3800 Mots-clés : Duality between reduced order observer and sliding surface design Reduced Servo system Variable structure systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a design method of a discrete-time reduced-order observer using the duality to discrete-time sliding-surface design. First, the duality between the coefficients of the discrete-time reduced-order observer and the sliding-surface design is established, and then, the design method for the observer using the Riccati equation is explained. A discrete-time sliding-mode controller based on the proposed observer is designed and tested on a laboratory-type experimental servo system. The results show the efficacy of the reduced-order observer designed by the duality concept. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409578

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Solving three key problems of wavelet transform processor using surface acoustic wave devices / Wenke, Lu in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3801 - 3806 Titre : Solving three key problems of wavelet transform processor using surface acoustic wave devices Type de document : texte imprimé Auteurs : Wenke, Lu, Auteur ; Changchun, Zhu, Auteur Année de publication : 2011 Article en page(s) : pp. 3801 - 3806 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Bulk acoustic wave (BAW) Insrtion loss compensation Sound-electricity reclamation (SER) Surface (SAW) Wavelet transform processor Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Abstract-In this paper, we present the bulk acoustic wave (BAW), the sound-electricity reclamation (SER), and the insertion loss as the three key problems of a wavelet transform processor using surface acoustic wave devices. The solutions to these problems are achieved in this study. The more the number of electrode pairs for the interdigital transducer (IDT) is, the weaker the excited BAW is, so the BAW can be eliminated when the number of electrode pairs for IDT is large enough. The substrate material of a small electromechanical coupling coefficient (ECC) k2 and the low-impedance load of IDT can eliminate SER. When the output ends of the wavelet transform processors are respectively connected to the amplifiers, their insertion losses can be compensated. X-112oY LiTaO3 (small ECC k2) is used as a substrate material to fabricate the wavelet transform processor. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409677 [article] Solving three key problems of wavelet transform processor using surface acoustic wave devices [texte imprimé] / Wenke, Lu, Auteur ; Changchun, Zhu, Auteur . - 2011 . - pp. 3801 - 3806. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3801 - 3806 Mots-clés : Bulk acoustic wave (BAW) Insrtion loss compensation Sound-electricity reclamation (SER) Surface (SAW) Wavelet transform processor Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Abstract-In this paper, we present the bulk acoustic wave (BAW), the sound-electricity reclamation (SER), and the insertion loss as the three key problems of a wavelet transform processor using surface acoustic wave devices. The solutions to these problems are achieved in this study. The more the number of electrode pairs for the interdigital transducer (IDT) is, the weaker the excited BAW is, so the BAW can be eliminated when the number of electrode pairs for IDT is large enough. The substrate material of a small electromechanical coupling coefficient (ECC) k2 and the low-impedance load of IDT can eliminate SER. When the output ends of the wavelet transform processors are respectively connected to the amplifiers, their insertion losses can be compensated. X-112oY LiTaO3 (small ECC k2) is used as a substrate material to fabricate the wavelet transform processor. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409677

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Design studies on hybrid excitation motor for main spindle drive in machine tools / Kosaka, Takashi in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3807 - 3813 Titre : Design studies on hybrid excitation motor for main spindle drive in machine tools Type de document : texte imprimé Auteurs : Kosaka, Takashi, Auteur ; Sridharbabu, Muthubabu, Auteur ; Yamamoto, Masayoshi, Auteur Année de publication : 2011 Article en page(s) : pp. 3807 - 3813 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : High-speed motors Machine tools Permanent magnet Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a hybrid excitation motor for a main spindle drive in end- and face-milling tools, which is operated with a high speed of 50 000 r/min. The proposed motor has not only a permanent magnet but also the field coil which makes field-weakening and field-strengthening controls possible with taking no notice of the permanent magnet demagnetization. In addition, the sum of iron and copper losses of the motor at the end-milling operation is significantly reduced by the field-weakening control. The 3-D finite-element-method-based design studies on the proposed motor for the target application are demonstrated. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409586 [article] Design studies on hybrid excitation motor for main spindle drive in machine tools [texte imprimé] / Kosaka, Takashi, Auteur ; Sridharbabu, Muthubabu, Auteur ; Yamamoto, Masayoshi, Auteur . - 2011 . - pp. 3807 - 3813. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3807 - 3813 Mots-clés : High-speed motors Machine tools Permanent magnet Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a hybrid excitation motor for a main spindle drive in end- and face-milling tools, which is operated with a high speed of 50 000 r/min. The proposed motor has not only a permanent magnet but also the field coil which makes field-weakening and field-strengthening controls possible with taking no notice of the permanent magnet demagnetization. In addition, the sum of iron and copper losses of the motor at the end-milling operation is significantly reduced by the field-weakening control. The 3-D finite-element-method-based design studies on the proposed motor for the target application are demonstrated. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409586

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

A digital PLL scheme for three-phase system using modified synchronous reference frame / da Silva, Carlos Henrique in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3814 - 3821 Titre : A digital PLL scheme for three-phase system using modified synchronous reference frame Type de document : texte imprimé Auteurs : da Silva, Carlos Henrique, Auteur ; Pereira, Rondineli Rodrigues, Auteur ; da Silva, Luiz Eeduardo Borges, Auteur Année de publication : 2011 Article en page(s) : pp. 3814 - 3821 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Active filter Digital signal processor (DSP) Phase-locked loop (PLL) Synchronous reference frame (SRF) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a novel phase-locked loop (PLL) control strategy to synthesize unit vector using the modified synchronous reference frame (MSRF) instead of the traditional synchronous reference frame. The unit vector is used for vector rotation or inverse rotation in vector-controlled three-phase grid-connected converting equipment. The developed MSRF-PLL is fast in transient response compared to standard PLL technique. The performance is robust against disturbances on the grid, voltage wave with harmonic distortion, and noise. The proposed algorithm has been analyzed in detail and was fully implemented digitally using digital signal processor TMS320F2812. The experimental evaluation of the MSRF-PLL in a shunt active power filter confirms its fast dynamic response, noise immunity, and applicability. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409576 [article] A digital PLL scheme for three-phase system using modified synchronous reference frame [texte imprimé] / da Silva, Carlos Henrique, Auteur ; Pereira, Rondineli Rodrigues, Auteur ; da Silva, Luiz Eeduardo Borges, Auteur . - 2011 . - pp. 3814 - 3821. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3814 - 3821 Mots-clés : Active filter Digital signal processor (DSP) Phase-locked loop (PLL) Synchronous reference frame (SRF) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a novel phase-locked loop (PLL) control strategy to synthesize unit vector using the modified synchronous reference frame (MSRF) instead of the traditional synchronous reference frame. The unit vector is used for vector rotation or inverse rotation in vector-controlled three-phase grid-connected converting equipment. The developed MSRF-PLL is fast in transient response compared to standard PLL technique. The performance is robust against disturbances on the grid, voltage wave with harmonic distortion, and noise. The proposed algorithm has been analyzed in detail and was fully implemented digitally using digital signal processor TMS320F2812. The experimental evaluation of the MSRF-PLL in a shunt active power filter confirms its fast dynamic response, noise immunity, and applicability. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409576

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

A system-on-chip sensorless control for a permanent-magnet synchronous motor / Delli Colli, Vincenzo in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3822 - 3829 Titre : A system-on-chip sensorless control for a permanent-magnet synchronous motor Type de document : texte imprimé Auteurs : Delli Colli, Vincenzo, Auteur ; Di Stefano, Roberto, Auteur ; Marignetti, Fabrizio, Auteur Année de publication : 2011 Article en page(s) : pp. 3822 - 3829 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Fiel-programmable gate array (FPGA) Finite-impulse response (FIR) filters Prmanent-magnet synchronous motors (PMSMs) Sensorless control Sliding-mode Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper investigates a system-on-programmable-chip permanent-magnet synchronous-motor drive speed and position sensorless control. The proposed approach exploits two field-programmable gate-array capabilities, namely, the fast computation and the hosting of long finite-impulse response filters. Such filters allow an accurate reconstruction of the position signal by means of phase compensation and lead to an improved speed estimation based on the zero-crossing detection of the commutation signals. This paper presents the design flow and confirms the feasibility of the approach by means of hardware-in-the-loop simulations and experimental tests. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409549 [article] A system-on-chip sensorless control for a permanent-magnet synchronous motor [texte imprimé] / Delli Colli, Vincenzo, Auteur ; Di Stefano, Roberto, Auteur ; Marignetti, Fabrizio, Auteur . - 2011 . - pp. 3822 - 3829. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3822 - 3829 Mots-clés : Fiel-programmable gate array (FPGA) Finite-impulse response (FIR) filters Prmanent-magnet synchronous motors (PMSMs) Sensorless control Sliding-mode Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper investigates a system-on-programmable-chip permanent-magnet synchronous-motor drive speed and position sensorless control. The proposed approach exploits two field-programmable gate-array capabilities, namely, the fast computation and the hosting of long finite-impulse response filters. Such filters allow an accurate reconstruction of the position signal by means of phase compensation and lead to an improved speed estimation based on the zero-crossing detection of the commutation signals. This paper presents the design flow and confirms the feasibility of the approach by means of hardware-in-the-loop simulations and experimental tests. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409549

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Cost reference particle filtering approach to high-bandwidth tilt estimation / Jaechan, Lim in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3830 - 3839 Titre : Cost reference particle filtering approach to high-bandwidth tilt estimation Type de document : texte imprimé Auteurs : Jaechan, Lim, Auteur ; Daehyoung, Hong, Auteur Année de publication : 2011 Article en page(s) : pp. 3830 - 3839 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Attitude Cost reference particle filter (CRPF) H [infinity] (HF) Tilt estimation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, cost reference particle filter (CRPF) approach in estimating 1-D “tilt” of a vehicle attitude is proposed. CRPF has a couple of advantageous features compared to standard particle filtering; particularly, it does not require noise statistics in its application. H_ filter (HF) has common features as that of CRPF. The extended HF (EHF) is employed, which uses the approximate linearization of the nonlinear measurement function as the extended Kalman filter is extended. The performance of both approaches is investigated and compared in this paper. Low-cost “accelerometer” and “gyroscope” sensors are cooperatively employed instead of inclinometer in measuring the tilt. Simulation results show that CRPF outperforms EHF in estimating the tilt due to its robustness against the nonlinearity of the measurement equation, whereas EHF outperforms CRPF in estimating the tilt rate whose measurement equation is linear. Notably, an efficient CRPF outperforms EHF in tracking the tilt with just ten particles. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409660 [article] Cost reference particle filtering approach to high-bandwidth tilt estimation [texte imprimé] / Jaechan, Lim, Auteur ; Daehyoung, Hong, Auteur . - 2011 . - pp. 3830 - 3839. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3830 - 3839 Mots-clés : Attitude Cost reference particle filter (CRPF) H [infinity] (HF) Tilt estimation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, cost reference particle filter (CRPF) approach in estimating 1-D “tilt” of a vehicle attitude is proposed. CRPF has a couple of advantageous features compared to standard particle filtering; particularly, it does not require noise statistics in its application. H_ filter (HF) has common features as that of CRPF. The extended HF (EHF) is employed, which uses the approximate linearization of the nonlinear measurement function as the extended Kalman filter is extended. The performance of both approaches is investigated and compared in this paper. Low-cost “accelerometer” and “gyroscope” sensors are cooperatively employed instead of inclinometer in measuring the tilt. Simulation results show that CRPF outperforms EHF in estimating the tilt due to its robustness against the nonlinearity of the measurement equation, whereas EHF outperforms CRPF in estimating the tilt rate whose measurement equation is linear. Notably, an efficient CRPF outperforms EHF in tracking the tilt with just ten particles. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409660

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Improved discrete-time sliding-mode position control using euler velocity estimation / Veselic, Boban in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3840 - 3847 Titre : Improved discrete-time sliding-mode position control using euler velocity estimation Type de document : texte imprimé Auteurs : Veselic, Boban, Auteur ; Perunicic-Drazenovic, Branislava, Auteur ; Milosavljevic, Cedomir, Auteur Année de publication : 2011 Article en page(s) : pp. 3840 - 3847 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Discrete-time sliding-mode control (DTSMC) Induction motors (IMs) Position Servo systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a design of digitally controlled positional systems with Euler velocity estimation within the framework of the discrete-time sliding mode (DSM). The effects of quantization and simple velocity estimation on DSM quality are analyzed. It is shown that the introduced and amplified quantization noise degrades sliding motion into the quasi-sliding mode and threatens to provoke chattering. Furthermore, a new DSM control algorithm is proposed, featuring a two-scale reaching law and a supplemental integral action. This algorithm avoids chattering and provides excellent performance. The developed DSM controller has been experimentally tested in an induction motor position control. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409645 [article] Improved discrete-time sliding-mode position control using euler velocity estimation [texte imprimé] / Veselic, Boban, Auteur ; Perunicic-Drazenovic, Branislava, Auteur ; Milosavljevic, Cedomir, Auteur . - 2011 . - pp. 3840 - 3847. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3840 - 3847 Mots-clés : Discrete-time sliding-mode control (DTSMC) Induction motors (IMs) Position Servo systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a design of digitally controlled positional systems with Euler velocity estimation within the framework of the discrete-time sliding mode (DSM). The effects of quantization and simple velocity estimation on DSM quality are analyzed. It is shown that the introduced and amplified quantization noise degrades sliding motion into the quasi-sliding mode and threatens to provoke chattering. Furthermore, a new DSM control algorithm is proposed, featuring a two-scale reaching law and a supplemental integral action. This algorithm avoids chattering and provides excellent performance. The developed DSM controller has been experimentally tested in an induction motor position control. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409645

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

New coordinated control design for thermal-power-generation units / Yinsong, Wang in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3848 - 3856 Titre : New coordinated control design for thermal-power-generation units Type de document : texte imprimé Auteurs : Yinsong, Wang, Auteur ; Yu, Xinghuo, Auteur Année de publication : 2011 Article en page(s) : pp. 3848 - 3856 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Backstrepping method Coordinated passivation Nonlinear control Power-generation unite Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A nonlinear model combining boiler-turbine-generator dynamic characteristics for a thermal-power-generation unit is first introduced. Based on the nonlinear model, a new coordinated control design is proposed using the backstepping method incorporating the coordinated passivation approach that considers the entire boiler-turbine-generator system as a whole. The control design consists of three subcontrollers, namely, a main steam valve controller, an excitation controller, and a fuel flow controller. It is shown that the proposed coordinated control design can ensure asymptotical stability of the closed-loop system and improve the electric power regulation performance. Simulation results based on a practical thermal-power-plant model are presented to show the effectiveness of the proposed control design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5410143 [article] New coordinated control design for thermal-power-generation units [texte imprimé] / Yinsong, Wang, Auteur ; Yu, Xinghuo, Auteur . - 2011 . - pp. 3848 - 3856. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3848 - 3856 Mots-clés : Backstrepping method Coordinated passivation Nonlinear control Power-generation unite Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A nonlinear model combining boiler-turbine-generator dynamic characteristics for a thermal-power-generation unit is first introduced. Based on the nonlinear model, a new coordinated control design is proposed using the backstepping method incorporating the coordinated passivation approach that considers the entire boiler-turbine-generator system as a whole. The control design consists of three subcontrollers, namely, a main steam valve controller, an excitation controller, and a fuel flow controller. It is shown that the proposed coordinated control design can ensure asymptotical stability of the closed-loop system and improve the electric power regulation performance. Simulation results based on a practical thermal-power-plant model are presented to show the effectiveness of the proposed control design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5410143

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Implementation of a control loop experiment in a network-based control system with LonWorks technology and IP networks / Canovas, Sergio R. M. in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3857 - 3867 Titre : Implementation of a control loop experiment in a network-based control system with LonWorks technology and IP networks Type de document : texte imprimé Auteurs : Canovas, Sergio R. M., Auteur ; Cugnasca, Carlos E., Auteur Année de publication : 2011 Article en page(s) : pp. 3857 - 3867 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Control networ Fieldbus LonWorks Packet tunneling Quality of control (QoC) service (Qos° Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Considering the increasing popularity of network-based control systems and the huge adoption of IP networks (such as the Internet), this paper studies the influence of network quality of service (QoS) parameters over quality of control parameters. An example of a control loop is implemented using two LonWorks networks (CEA-709.1) interconnected by an emulated IP network, in which important QoS parameters such as delay and delay jitter can be completely controlled. Mathematical definitions are provided according to the literature, and the results of the network-based control loop experiment are presented and discussed. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409582 [article] Implementation of a control loop experiment in a network-based control system with LonWorks technology and IP networks [texte imprimé] / Canovas, Sergio R. M., Auteur ; Cugnasca, Carlos E., Auteur . - 2011 . - pp. 3857 - 3867. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3857 - 3867 Mots-clés : Control networ Fieldbus LonWorks Packet tunneling Quality of control (QoC) service (Qos° Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Considering the increasing popularity of network-based control systems and the huge adoption of IP networks (such as the Internet), this paper studies the influence of network quality of service (QoS) parameters over quality of control parameters. An example of a control loop is implemented using two LonWorks networks (CEA-709.1) interconnected by an emulated IP network, in which important QoS parameters such as delay and delay jitter can be completely controlled. Mathematical definitions are provided according to the literature, and the results of the network-based control loop experiment are presented and discussed. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409582

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Guaranteeing real-time services for industrial wireless sensor networks with IEEE 802.15.4 / Seong-eun, Yoo in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3868 - 3876 Titre : Guaranteeing real-time services for industrial wireless sensor networks with IEEE 802.15.4 Type de document : texte imprimé Auteurs : Seong-eun, Yoo, Auteur ; Poh Kit, Chong, Auteur ; Daeyoung, Kim, Auteur Année de publication : 2011 Article en page(s) : pp. 3868 - 3876 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Guaranteed time slot (GTS) Industrial wireless sensor network (WSN) Real-time communication WSN Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Industrial applications of wireless sensor networks require timeliness in exchanging messages among nodes. Although IEEE 802.15.4 provides a superframe structure for real-time communication, a real-time message-scheduling algorithm is still required to schedule a large number of real-time messages to meet their timing constraints. We propose a distance-constrained real-time offline message-scheduling algorithm which generates the standard specific parameters such as beacon order, superframe order, and guaranteed-time-slot information and allocates each periodic real-time message to superframe slots for a given message set. The proposed scheduling algorithm is evaluated and analyzed extensively through simulations. In addition, a guaranteed time service is implemented in a typical industrial sensor node platform with a well-known IEEE 802.15.4-compliant transceiver CC2420 and ATmega128L to verify the feasibility of the guaranteed time service with the schedule generated by the proposed scheduling algorithm. Through experiments, we prove that the real system runs accurately according to the schedule calculated by the proposed algorithm. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409648 [article] Guaranteeing real-time services for industrial wireless sensor networks with IEEE 802.15.4 [texte imprimé] / Seong-eun, Yoo, Auteur ; Poh Kit, Chong, Auteur ; Daeyoung, Kim, Auteur . - 2011 . - pp. 3868 - 3876. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3868 - 3876 Mots-clés : Guaranteed time slot (GTS) Industrial wireless sensor network (WSN) Real-time communication WSN Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Industrial applications of wireless sensor networks require timeliness in exchanging messages among nodes. Although IEEE 802.15.4 provides a superframe structure for real-time communication, a real-time message-scheduling algorithm is still required to schedule a large number of real-time messages to meet their timing constraints. We propose a distance-constrained real-time offline message-scheduling algorithm which generates the standard specific parameters such as beacon order, superframe order, and guaranteed-time-slot information and allocates each periodic real-time message to superframe slots for a given message set. The proposed scheduling algorithm is evaluated and analyzed extensively through simulations. In addition, a guaranteed time service is implemented in a typical industrial sensor node platform with a well-known IEEE 802.15.4-compliant transceiver CC2420 and ATmega128L to verify the feasibility of the guaranteed time service with the schedule generated by the proposed scheduling algorithm. Through experiments, we prove that the real system runs accurately according to the schedule calculated by the proposed algorithm. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409648

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire