Documents disponibles écrits par cet auteur

Algebraic identification and discontinuous control for trajectory tracking in a perturbed 1-DOF suspension system / Garcia-Rodriguez, Carlos 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. 3665-3674 Titre : Algebraic identification and discontinuous control for trajectory tracking in a perturbed 1-DOF suspension system Type de document : texte imprimé Auteurs : Garcia-Rodriguez, Carlos, Auteur ; Cortes-Romero, John Alexander, Auteur ; Sira-Ramirez, Hebertt, Auteur Article en page(s) : pp. 3665-3674 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Trajectory  tracking  Algebraic  identification  Output  feedback  control Index. décimale : 621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie Résumé : This paper deals with the output feedback control and simultaneous online algebraic identification of an unknown perturbed 1-DOF suspension system. An algebraic identifier, which is known to be of unstable nature, is provided with an automatic disconnection strategy. The automatic disconnection is achieved by assessing an extra auxiliary parameter, called the ldquosentinelrdquo parameter that monitors the convergence of the rest of the estimated system parameters. The estimated values of mass, stiffness, and damping are realized via an algebraic estimator, with great rapidity and robustness to noise process signals present in the input and output signals. A generalized proportional integral controller was designed for a trajectory tracking task and the rejection of a constant disturbance input. The switched implementation of the average input in the form of a bounded discontinuous control signal is based on the use of a Sigma- Delta modulator. In an average sense, this modulation allows us to preserve the desirable features of the dynamic output feedback controller and to be close to a real implementation. The efficiency of the complete procedure is demonstrated via digital computer simulations. DEWEY : 621 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=5200775&arnumber=5159385 [...] [article] Algebraic identification and discontinuous control for trajectory tracking in a perturbed 1-DOF suspension system [texte imprimé] / Garcia-Rodriguez, Carlos, Auteur ; Cortes-Romero, John Alexander, Auteur ; Sira-Ramirez, Hebertt, Auteur . - pp. 3665-3674. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 9 (Septembre 2009) . - pp. 3665-3674 Mots-clés : Trajectory  tracking  Algebraic  identification  Output  feedback  control Index. décimale : 621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie Résumé : This paper deals with the output feedback control and simultaneous online algebraic identification of an unknown perturbed 1-DOF suspension system. An algebraic identifier, which is known to be of unstable nature, is provided with an automatic disconnection strategy. The automatic disconnection is achieved by assessing an extra auxiliary parameter, called the ldquosentinelrdquo parameter that monitors the convergence of the rest of the estimated system parameters. The estimated values of mass, stiffness, and damping are realized via an algebraic estimator, with great rapidity and robustness to noise process signals present in the input and output signals. A generalized proportional integral controller was designed for a trajectory tracking task and the rejection of a constant disturbance input. The switched implementation of the average input in the form of a bounded discontinuous control signal is based on the use of a Sigma- Delta modulator. In an average sense, this modulation allows us to preserve the desirable features of the dynamic output feedback controller and to be close to a real implementation. The efficiency of the complete procedure is demonstrated via digital computer simulations. DEWEY : 621 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=5200775&arnumber=5159385 [...]

Load torque estimation and passivity-based control of a boost-converter/DC-motor combination / Jesus Linares-Flores in IEEE Transactions on control systems technology, Vol. 18 N° 6 (Novembre 2010) 

Public ISBD [article]  in IEEE Transactions on control systems technology > Vol. 18 N° 6 (Novembre 2010) . - pp.1398-1405 Titre : Load torque estimation and passivity-based control of a boost-converter/DC-motor combination Type de document : texte imprimé Auteurs : Jesus Linares-Flores, Auteur ; Johann Reger, Auteur ; Sira-Ramirez, Hebertt, Auteur Année de publication : 2011 Article en page(s) : pp.1398-1405 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Algebraic  estimation  Electrial  drives  Flatness-based  trajectory  planning  Passivity-based  control  Power  electronics Index. décimale : 629.1 Résumé : An algebraic approach is presented for the fast feed-forward adaptation of the angular velocity trajectory tracking task in a Boost-converter driven dc-motor system. For the adaptation, the load torque perturbations are assumed piecewise constant and are, nonasymptotically, online estimated using the available noisy measurements of the state variables. The controller is a linear controller based on the exact tracking error dynamics passive output feedback (ETEDPOF) controller design methodology including suitable adaptive feed-forward precompensation depending explicitly on the precisely estimated torque. The performance of the adaptation, which is achieved by means of the algebraic online-estimation of the current unknown load torque, is successfully validated in an experimental laboratory setup. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409504 [article] Load torque estimation and passivity-based control of a boost-converter/DC-motor combination [texte imprimé] / Jesus Linares-Flores, Auteur ; Johann Reger, Auteur ; Sira-Ramirez, Hebertt, Auteur . - 2011 . - pp.1398-1405. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 6 (Novembre 2010) . - pp.1398-1405 Mots-clés : Algebraic  estimation  Electrial  drives  Flatness-based  trajectory  planning  Passivity-based  control  Power  electronics Index. décimale : 629.1 Résumé : An algebraic approach is presented for the fast feed-forward adaptation of the angular velocity trajectory tracking task in a Boost-converter driven dc-motor system. For the adaptation, the load torque perturbations are assumed piecewise constant and are, nonasymptotically, online estimated using the available noisy measurements of the state variables. The controller is a linear controller based on the exact tracking error dynamics passive output feedback (ETEDPOF) controller design methodology including suitable adaptive feed-forward precompensation depending explicitly on the precisely estimated torque. The performance of the adaptation, which is achieved by means of the algebraic online-estimation of the current unknown load torque, is successfully validated in an experimental laboratory setup. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409504