Documents disponibles écrits par cet auteur

Frequency-shaped sliding mode control using output sampled measurements / Mehta, A. J. in IEEE transactions on industrial electronics, Vol. 56 N°1 (Janvier 2009) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 56 N°1 (Janvier 2009) . - pp. 28 - 35 Titre : Frequency-shaped sliding mode control using output sampled measurements Type de document : texte imprimé Auteurs : Mehta, A. J., Auteur ; Bandyopadhyay, B., Auteur Année de publication : 2009 Article en page(s) : pp. 28 - 35 Note générale : elecronics Langues : Anglais (eng) Mots-clés : frequency  control;  variable  structure  systems Résumé : In this paper, a method is presented for frequency-shaped sliding mode control using output feedback. A compensator is introduced in the sliding surface to attenuate the certain frequency component of the sliding mode dynamics. The output is measured at a faster rate than the control input to estimate the states of the system. The proposed output feedback frequency-shaped sliding mode controller is designed for the vibration suppression of intelligent structure. The simulation and experimental results show the efficacy of the method. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4663706&sortType%3Das [...] [article] Frequency-shaped sliding mode control using output sampled measurements [texte imprimé] / Mehta, A. J., Auteur ; Bandyopadhyay, B., Auteur . - 2009 . - pp. 28 - 35. elecronics Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N°1 (Janvier 2009) . - pp. 28 - 35 Mots-clés : frequency  control;  variable  structure  systems Résumé : In this paper, a method is presented for frequency-shaped sliding mode control using output feedback. A compensator is introduced in the sliding surface to attenuate the certain frequency component of the sliding mode dynamics. The output is measured at a faster rate than the control input to estimate the states of the system. The proposed output feedback frequency-shaped sliding mode controller is designed for the vibration suppression of intelligent structure. The simulation and experimental results show the efficacy of the method. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4663706&sortType%3Das [...]

High-performance tracking controller for discrete plant using nonlinear sliding surface / Bandyopadhyay, B. in IEEE transactions on industrial electronics, Vol. 56 N° 9 (Septembre 2009) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 56 N° 9 (Septembre 2009) . - pp. 3628-3637 Titre : High-performance tracking controller for discrete plant using nonlinear sliding surface Type de document : texte imprimé Auteurs : Bandyopadhyay, B., Auteur ; Fulwani, D., Auteur Article en page(s) : pp. 3628-3637 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Nonlinear  sliding  surface  Discrete  multiple-input-multiple-output  linear  systems  Discrete  plant  Nonlinear  sliding  surface Index. décimale : 621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie Résumé : A nonlinear sliding surface is proposed to improve the transient response for general discrete multiple-input-multiple-output linear systems with matched perturbations. The tracking case is analyzed, and it is shown that the scheme is able to achieve low overshoot and low settling time simultaneously; this is not possible with a linear sliding surface. The control law is based on the discrete-time sliding mode equivalent control and thus eliminates chattering. The control law is proposed based on two approaches: (1) reaching-law-based approach which needs only disturbance bounds and (2) disturbance-observer-based approach. Multirate output feedback is used to relax the need of the entire state vector for the implementation of the control law. A magnetic tape position control application is used to show the effectiveness of the proposed scheme. DEWEY : 621 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=5200775&arnumber=4663835 [...] [article] High-performance tracking controller for discrete plant using nonlinear sliding surface [texte imprimé] / Bandyopadhyay, B., Auteur ; Fulwani, D., Auteur . - pp. 3628-3637. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 9 (Septembre 2009) . - pp. 3628-3637 Mots-clés : Nonlinear  sliding  surface  Discrete  multiple-input-multiple-output  linear  systems  Discrete  plant  Nonlinear  sliding  surface Index. décimale : 621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie Résumé : A nonlinear sliding surface is proposed to improve the transient response for general discrete multiple-input-multiple-output linear systems with matched perturbations. The tracking case is analyzed, and it is shown that the scheme is able to achieve low overshoot and low settling time simultaneously; this is not possible with a linear sliding surface. The control law is based on the discrete-time sliding mode equivalent control and thus eliminates chattering. The control law is proposed based on two approaches: (1) reaching-law-based approach which needs only disturbance bounds and (2) disturbance-observer-based approach. Multirate output feedback is used to relax the need of the entire state vector for the implementation of the control law. A magnetic tape position control application is used to show the effectiveness of the proposed scheme. DEWEY : 621 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=5200775&arnumber=4663835 [...]

In search of contextual variables in a stochastic DEA framework / Bandyopadhyay, B. in Journal of the operational research society (JORS), Vol. 62 N° 9 (Septembre 2011) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 62 N° 9 (Septembre 2011) . - pp. 1621–1637 Titre : In search of contextual variables in a stochastic DEA framework : effect of regulation on efficiency of Indian cement industry Type de document : texte imprimé Auteurs : Bandyopadhyay, B., Auteur Année de publication : 2011 Article en page(s) : pp. 1621–1637 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Non-parametric  methods  Efficiency  Regulation Index. décimale : 001.424 Résumé : The paper assesses the difference in the nature of relationship between efficiency and its determinants of Indian cement producing firms in the presence and absence of environmental regulation. It provides an intuitive construct to identify the determinants of efficiency, which is followed by an empirical verification using a two-stage stochastic data envelopment analysis. Important quantitative determinants of efficiency include factor intensities of outputs, levels of pollution abatements, gross value added, whereas size, age, ownership type, development indicators of the place of location of a firm are among the qualitative determinants. An initial phase and a matured phase of regulation are considered in the paper. The main results suggest that capital intensity of output plays a positive role in increasing efficiency under regulation in the initial phase, material intensity in both phases and labour intensity, a negative role, in the subsequent phase. Higher levels of pollution abatements cause higher efficiency under regulation, while in the initial phase private firms report higher efficiencies under regulation; it is just the reverse in the subsequent phase. Size, age and development indicator of the state in which a firm is located can play a positive role to achieve higher efficiencies in the matured phase of regulation. DEWEY : 001.424 ISSN : 01605682 En ligne : http://www.palgrave-journals.com/jors/journal/v62/n9/abs/jors2010193a.html [article] In search of contextual variables in a stochastic DEA framework : effect of regulation on efficiency of Indian cement industry [texte imprimé] / Bandyopadhyay, B., Auteur . - 2011 . - pp. 1621–1637. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 62 N° 9 (Septembre 2011) . - pp. 1621–1637 Mots-clés : Non-parametric  methods  Efficiency  Regulation Index. décimale : 001.424 Résumé : The paper assesses the difference in the nature of relationship between efficiency and its determinants of Indian cement producing firms in the presence and absence of environmental regulation. It provides an intuitive construct to identify the determinants of efficiency, which is followed by an empirical verification using a two-stage stochastic data envelopment analysis. Important quantitative determinants of efficiency include factor intensities of outputs, levels of pollution abatements, gross value added, whereas size, age, ownership type, development indicators of the place of location of a firm are among the qualitative determinants. An initial phase and a matured phase of regulation are considered in the paper. The main results suggest that capital intensity of output plays a positive role in increasing efficiency under regulation in the initial phase, material intensity in both phases and labour intensity, a negative role, in the subsequent phase. Higher levels of pollution abatements cause higher efficiency under regulation, while in the initial phase private firms report higher efficiencies under regulation; it is just the reverse in the subsequent phase. Size, age and development indicator of the state in which a firm is located can play a positive role to achieve higher efficiencies in the matured phase of regulation. DEWEY : 001.424 ISSN : 01605682 En ligne : http://www.palgrave-journals.com/jors/journal/v62/n9/abs/jors2010193a.html

Output Feedback Sliding-Mode Control for Uncertain Systems Using Fast Output Sampling Technique / Janardhanan, S. in IEEE transactions on industrial electronics, Vol. 53 N° 5 (Octobre 2006) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 53 N° 5 (Octobre 2006) . - 1677-1682 p. Titre : Output Feedback Sliding-Mode Control for Uncertain Systems Using Fast Output Sampling Technique Titre original : Commande de Mode de Glissement de Rétroaction de Rendement pour les Systèmes Incertains en Utilisant la Technique d'Echantillonnage Rapide de Rendement Type de document : texte imprimé Auteurs : Janardhanan, S., Auteur ; Bandyopadhyay, B., Auteur Article en page(s) : 1677-1682 p. Note générale : Génie Electrique Langues : Anglais (eng) Mots-clés : Discrete-time  systems  Systèmes  de  temps  discret  Output  feedback  Rendement  rétroagissent  Uncertain  systems  Variable  structure  systems  Systèmes  variables  de  structure Index. décimale : 621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie Résumé : This paper presents a method for achieving quasi-sliding mode for uncertain systems using a fast output sampling control strategy that avoids switching of control and, hence, avoids chattering. This method does not need the system states for feedback as it makes use of only the output samples for designing the controller. Thus, this methodology is more practical and easy to implement. The design technique is illustrated through two numerical examples. Cet article présente une méthode pour réaliser le mode quasi-coulissant pour les systèmes incertains en utilisant une stratégie rapide de commande de prélèvement de rendement qui évite la commutation de la commande et, par conséquent, l'évite la vibration. Cette méthode n'a pas besoin des états de système pour la rétroaction pendant qu'elle se sert seulement des échantillons de rendement pour concevoir le contrôleur. Ainsi, cette méthodologie est plus pratique et facile à mettre en application. La technique de conception est illustrée par deux exemples numériques. DEWEY : 621 ISSN : 0278-0046 En ligne : janas@ee.iitb.ac.in, bijnan@ee.iitb.ac.in [article] Output Feedback Sliding-Mode Control for Uncertain Systems Using Fast Output Sampling Technique = Commande de Mode de Glissement de Rétroaction de Rendement pour les Systèmes Incertains en Utilisant la Technique d'Echantillonnage Rapide de Rendement [texte imprimé] / Janardhanan, S., Auteur ; Bandyopadhyay, B., Auteur . - 1677-1682 p. Génie Electrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 53 N° 5 (Octobre 2006) . - 1677-1682 p. Mots-clés : Discrete-time  systems  Systèmes  de  temps  discret  Output  feedback  Rendement  rétroagissent  Uncertain  systems  Variable  structure  systems  Systèmes  variables  de  structure Index. décimale : 621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie Résumé : This paper presents a method for achieving quasi-sliding mode for uncertain systems using a fast output sampling control strategy that avoids switching of control and, hence, avoids chattering. This method does not need the system states for feedback as it makes use of only the output samples for designing the controller. Thus, this methodology is more practical and easy to implement. The design technique is illustrated through two numerical examples. Cet article présente une méthode pour réaliser le mode quasi-coulissant pour les systèmes incertains en utilisant une stratégie rapide de commande de prélèvement de rendement qui évite la commutation de la commande et, par conséquent, l'évite la vibration. Cette méthode n'a pas besoin des états de système pour la rétroaction pendant qu'elle se sert seulement des échantillons de rendement pour concevoir le contrôleur. Ainsi, cette méthodologie est plus pratique et facile à mettre en application. La technique de conception est illustrée par deux exemples numériques. DEWEY : 621 ISSN : 0278-0046 En ligne : janas@ee.iitb.ac.in, bijnan@ee.iitb.ac.in

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]  in IEEE 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  order  observer  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  order  observer  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

Sliding mode observer based sliding mode controller for slosh-free motion through PID scheme / Bandyopadhyay, B. in IEEE transactions on industrial electronics, Vol. 56 N° 9 (Septembre 2009) 

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