H∞ fuzzy tracking control design for nonlinear active fault tolerant control systems / Huai-Ning Wu in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 130 n°4 (Juillet 2008)  

Public ISBD [article]  inTransactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 130 n°4 (Juillet 2008) . - 9 p. Titre : H∞ fuzzy tracking control design for nonlinear active fault tolerant control systems Type de document : texte imprimé Auteurs : Huai-Ning Wu, Auteur ; Ming-Zhen Bai, Auteur Année de publication : 2008 Article en page(s) : 9 p. Note générale : dynamic systems Langues : Anglais (eng) Mots-clés : control systems  design  tracking control  fuzzy logic  equipment  design methodology  stability  errors Résumé : This paper studies the problem of H∞ fuzzy tracking control design for nonlinear active fault tolerant control systems based on the Takagi and Sugeno fuzzy model. Two random processes with Markovian transition characteristics are introduced to model the system component fault process and the fault detection and isolation decision process used to reconfigure the control law, respectively. The random behavior of the FDI process is conditioned on the fault process state. The parallel distributed compensation scheme is employed for the control design. As a result, a closed-loop fuzzy system with two Markovian jump parameters is obtained. Based on a stochastic Lyapunov function, a sufficient condition for stochastic stability of the closed-loop fuzzy system with a guaranteed H∞ model reference tracking performance is first derived. A linear matrix inequality approach to the control design is then developed to reduce the effect of the external disturbance and reference input on tracking error as small as possible. Finally, a simulation example is presented to illustrate the effectiveness of the proposed design method. En ligne : http://dynamicsystems.asmedigitalcollection.asme.org/issue.aspx?journalid=117&is [...] [article] H∞ fuzzy tracking control design for nonlinear active fault tolerant control systems [texte imprimé] / Huai-Ning Wu, Auteur ; Ming-Zhen Bai, Auteur . - 2008 . - 9 p. dynamic systems Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 130 n°4 (Juillet 2008) . - 9 p. Mots-clés : control systems  design  tracking control  fuzzy logic  equipment  design methodology  stability  errors Résumé : This paper studies the problem of H∞ fuzzy tracking control design for nonlinear active fault tolerant control systems based on the Takagi and Sugeno fuzzy model. Two random processes with Markovian transition characteristics are introduced to model the system component fault process and the fault detection and isolation decision process used to reconfigure the control law, respectively. The random behavior of the FDI process is conditioned on the fault process state. The parallel distributed compensation scheme is employed for the control design. As a result, a closed-loop fuzzy system with two Markovian jump parameters is obtained. Based on a stochastic Lyapunov function, a sufficient condition for stochastic stability of the closed-loop fuzzy system with a guaranteed H∞ model reference tracking performance is first derived. A linear matrix inequality approach to the control design is then developed to reduce the effect of the external disturbance and reference input on tracking error as small as possible. Finally, a simulation example is presented to illustrate the effectiveness of the proposed design method. En ligne : http://dynamicsystems.asmedigitalcollection.asme.org/issue.aspx?journalid=117&is [...]

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Heuristic dynamic programming algorithm for optimal control design of linear continuous - time hyperbolic PDE systems / Huai-Ning Wu in Industrial & engineering chemistry research, Vol. 51 N° 27 (Juillet 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 27 (Juillet 2012) . - pp. 9310-9319 Titre : Heuristic dynamic programming algorithm for optimal control design of linear continuous - time hyperbolic PDE systems Type de document : texte imprimé Auteurs : Huai-Ning Wu, Auteur ; Biao Luo, Auteur Année de publication : 2012 Article en page(s) : pp. 9310-9319 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Mathematical programming Continuous time Design Optimal control Algorithm Dynamic Résumé : This work considers the optimal control problem of linear continuous-time hyperbolic partial differential equation (PDE) systems with partially unknown system dynamics. To respect the infinite-dimensional nature of the hyperbolic PDE system, the problem can be reduced to finding a solution of the space-dependent Riccati differential equation (SDRDE), which requires the full system model. Therefore, a heuristic dynamic programming (HDP) algorithm is proposed to achieve online optimal control of the hyperbolic PDE system, which online collects data accrued along system trajectories and learns the solution of the SDRDE without requiring the internal system dynamics. The convergence of HDP algorithm is established by showing that the HDP algorithm generates a nondecreasing sequence which uniformly converges to the solution of the SDRDE. For implementation purposes, the HDP algorithm is realized by developing an approximate approach based on the method of weighted residuals. Finally, the application on a steam-jacketed tubular heat exchanger demonstrates the effectiveness of the developed control approach. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26132267 [article] Heuristic dynamic programming algorithm for optimal control design of linear continuous - time hyperbolic PDE systems [texte imprimé] / Huai-Ning Wu, Auteur ; Biao Luo, Auteur . - 2012 . - pp. 9310-9319. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 27 (Juillet 2012) . - pp. 9310-9319 Mots-clés : Mathematical programming Continuous time Design Optimal control Algorithm Dynamic Résumé : This work considers the optimal control problem of linear continuous-time hyperbolic partial differential equation (PDE) systems with partially unknown system dynamics. To respect the infinite-dimensional nature of the hyperbolic PDE system, the problem can be reduced to finding a solution of the space-dependent Riccati differential equation (SDRDE), which requires the full system model. Therefore, a heuristic dynamic programming (HDP) algorithm is proposed to achieve online optimal control of the hyperbolic PDE system, which online collects data accrued along system trajectories and learns the solution of the SDRDE without requiring the internal system dynamics. The convergence of HDP algorithm is established by showing that the HDP algorithm generates a nondecreasing sequence which uniformly converges to the solution of the SDRDE. For implementation purposes, the HDP algorithm is realized by developing an approximate approach based on the method of weighted residuals. Finally, the application on a steam-jacketed tubular heat exchanger demonstrates the effectiveness of the developed control approach. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26132267

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Reliable Robust H[infinity] Fuzzy Control for Uncertain Nonlinear Systems With Markovian Jumping Actuator Faults / Huai-Ning Wu in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 129 N° 3 (Mai 2007)  

Public ISBD [article]  inTransactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 129 N° 3 (Mai 2007) . - 252-261 p. Titre : Reliable Robust H[infinity] Fuzzy Control for Uncertain Nonlinear Systems With Markovian Jumping Actuator Faults Titre original : La commande brouillée robuste fiable de H [infini] pour les systèmes non-linéaires incertains avec le déclencheur sautant markovien censure Type de document : texte imprimé Auteurs : Huai-Ning Wu, Auteur Année de publication : 2007 Article en page(s) : 252-261 p. Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Fuzzy control H infinity-disturbance attenuation Linear matrix inequality (LMI) Nonlinear continoues-time systems Reliable Robust Commande brouillée Atténuation de perturbation infini Inégalité linéaire matrice Systèmes non-linéaires temps continu fiable robuste Résumé : This paper is concerned with the design of reliable robust H[infinity] fuzzy control for uncertain nonlinear continuous-time systems with Markovian jumping actuator faults. The Takagi and Sugeno fuzzy model is employed to represent an uncertain nonlinear system with Markovian jumping actuator faults. First, based on the parallel distributed compensation (PDC) scheme, a sufficient condition such that the closed-loop fuzzy system is robustly stochastically stable and satisfies a prescribed level of H[infinity]-disturbance attenuation is derived. In the derivation process, a stochastic Lyapunov function is used to test the stability and H[infinity] performance of the system. Then, a new improved linear matrix inequality (LMI) formulation is applied to this condition to alleviate the interrelation between the stochastic Lyapunov matrix and system matrices containing controller variables, which results in a tractable LMI-based condition for the existence of reliable and robust H[infinity] fuzzy controllers. A suboptimal fuzzy controller is proposed to minimize the level of disturbance attenuation subject to the LMI constraints. Finally, a simulation example is given to illustrate the effectiveness of the proposed method. Cet article est concerné par la conception de la commande brouillée robuste fiable de H [infini] pour les systèmes non-linéaires incertains de continu-temps avec les défauts sautants markoviens de déclencheur. Le modèle brouillé de Takagi et de Sugeno est utilisé pour représenter un système non-linéaire incertain avec les défauts sautants markoviens de déclencheur. D'abord, basé sur l'arrangement distribué parallèle de la compensation (PDC), un état suffisant tels que le système brouillé en circuit fermé est robuste stochastiquement écurie et satisfait un niveau prescrit de H [infini] - atténuation de perturbation est dérivé. Dans le processus de dérivation, une fonction stochastique de Lyapunov est employée pour examiner la stabilité et l'exécution de H [infini] du système. Puis, une nouvelle formulation linéaire améliorée de l'inégalité de matrice (LMI) est appliquée à cette condition pour alléger l'interdépendance entre la matrice de Lyapunov et les matrices stochastiques de système contenant des variables de contrôleur, qui a comme conséquence un état LMI-basé menable pour l'existence des contrôleurs brouillés fiables et robustes de H [infini]. On propose un contrôleur brouillé suboptimal pour réduire au minimum le niveau de l'atténuation de perturbation sujet aux contraintes de LMI. En conclusion, un exemple de simulation est donné pour illustrer l'efficacité de la méthode proposée. DEWEY : 629.8 ISSN : 0022-0434 RAMEAU : Commande H-infini-- Commande robuste En ligne : whn@buaa.edu.cn [article] Reliable Robust H[infinity] Fuzzy Control for Uncertain Nonlinear Systems With Markovian Jumping Actuator Faults = La commande brouillée robuste fiable de H [infini] pour les systèmes non-linéaires incertains avec le déclencheur sautant markovien censure [texte imprimé] / Huai-Ning Wu, Auteur . - 2007 . - 252-261 p. Génie Mécanique Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 129 N° 3 (Mai 2007) . - 252-261 p. Mots-clés : Fuzzy control H infinity-disturbance attenuation Linear matrix inequality (LMI) Nonlinear continoues-time systems Reliable Robust Commande brouillée Atténuation de perturbation infini Inégalité linéaire matrice Systèmes non-linéaires temps continu fiable robuste Résumé : This paper is concerned with the design of reliable robust H[infinity] fuzzy control for uncertain nonlinear continuous-time systems with Markovian jumping actuator faults. The Takagi and Sugeno fuzzy model is employed to represent an uncertain nonlinear system with Markovian jumping actuator faults. First, based on the parallel distributed compensation (PDC) scheme, a sufficient condition such that the closed-loop fuzzy system is robustly stochastically stable and satisfies a prescribed level of H[infinity]-disturbance attenuation is derived. In the derivation process, a stochastic Lyapunov function is used to test the stability and H[infinity] performance of the system. Then, a new improved linear matrix inequality (LMI) formulation is applied to this condition to alleviate the interrelation between the stochastic Lyapunov matrix and system matrices containing controller variables, which results in a tractable LMI-based condition for the existence of reliable and robust H[infinity] fuzzy controllers. A suboptimal fuzzy controller is proposed to minimize the level of disturbance attenuation subject to the LMI constraints. Finally, a simulation example is given to illustrate the effectiveness of the proposed method. Cet article est concerné par la conception de la commande brouillée robuste fiable de H [infini] pour les systèmes non-linéaires incertains de continu-temps avec les défauts sautants markoviens de déclencheur. Le modèle brouillé de Takagi et de Sugeno est utilisé pour représenter un système non-linéaire incertain avec les défauts sautants markoviens de déclencheur. D'abord, basé sur l'arrangement distribué parallèle de la compensation (PDC), un état suffisant tels que le système brouillé en circuit fermé est robuste stochastiquement écurie et satisfait un niveau prescrit de H [infini] - atténuation de perturbation est dérivé. Dans le processus de dérivation, une fonction stochastique de Lyapunov est employée pour examiner la stabilité et l'exécution de H [infini] du système. Puis, une nouvelle formulation linéaire améliorée de l'inégalité de matrice (LMI) est appliquée à cette condition pour alléger l'interdépendance entre la matrice de Lyapunov et les matrices stochastiques de système contenant des variables de contrôleur, qui a comme conséquence un état LMI-basé menable pour l'existence des contrôleurs brouillés fiables et robustes de H [infini]. On propose un contrôleur brouillé suboptimal pour réduire au minimum le niveau de l'atténuation de perturbation sujet aux contraintes de LMI. En conclusion, un exemple de simulation est donné pour illustrer l'efficacité de la méthode proposée. DEWEY : 629.8 ISSN : 0022-0434 RAMEAU : Commande H-infini-- Commande robuste En ligne : whn@buaa.edu.cn

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Stochastic stability and stabilization of uncertain jump linear delay systems via delay decomposition / Wang, Jun-Wei in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 133 N° 2 (Mars 2011)  

Public ISBD [article]  inTransactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 133 N° 2 (Mars 2011) . - 07 p. Titre : Stochastic stability and stabilization of uncertain jump linear delay systems via delay decomposition Type de document : texte imprimé Auteurs : Wang, Jun-Wei, Auteur ; Huai-Ning Wu, Auteur ; Luo, Yue-Sheng, Auteur Année de publication : 2011 Article en page(s) : 07 p. Note générale : Systèmes dynamiques Langues : Anglais (eng) Mots-clés : Terrain Srface Global positioning system (GPS) Inertial navigation (INS) Drift Singular value decomposition (SVD) Index. décimale : 629.8 Résumé : This paper studies the problem of robustly stochastic stability and stabilization for a class of uncertain Markov jump linear systems with time delay. A new stochastic Lyapunov–Krasovskii functional (LKF) is constructed for the stability analysis and stabilization, in which the delay is uniformly divided into multiple segments. Based on this LKF and using an improved Jensen's integral inequality, the improved delay-dependent stochastic stability criteria are first derived in terms of linear matrix inequalities (LMIs). Then, an LMI approach to the design of stabilizing controllers via delayed state feedback is developed. The previous stability criteria are extended to give the delay-dependent stabilization conditions in terms of LMIs. Furthermore, an LMI optimization algorithm is proposed to find the maximum allowable delay of the system. Finally, numerical examples show that the proposed results are effective and much less conservative than some existing results. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013300 [...] [article] Stochastic stability and stabilization of uncertain jump linear delay systems via delay decomposition [texte imprimé] / Wang, Jun-Wei, Auteur ; Huai-Ning Wu, Auteur ; Luo, Yue-Sheng, Auteur . - 2011 . - 07 p. Systèmes dynamiques Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 133 N° 2 (Mars 2011) . - 07 p. Mots-clés : Terrain Srface Global positioning system (GPS) Inertial navigation (INS) Drift Singular value decomposition (SVD) Index. décimale : 629.8 Résumé : This paper studies the problem of robustly stochastic stability and stabilization for a class of uncertain Markov jump linear systems with time delay. A new stochastic Lyapunov–Krasovskii functional (LKF) is constructed for the stability analysis and stabilization, in which the delay is uniformly divided into multiple segments. Based on this LKF and using an improved Jensen's integral inequality, the improved delay-dependent stochastic stability criteria are first derived in terms of linear matrix inequalities (LMIs). Then, an LMI approach to the design of stabilizing controllers via delayed state feedback is developed. The previous stability criteria are extended to give the delay-dependent stabilization conditions in terms of LMIs. Furthermore, an LMI optimization algorithm is proposed to find the maximum allowable delay of the system. Finally, numerical examples show that the proposed results are effective and much less conservative than some existing results. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013300 [...]

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