Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system
This paper presents a perfect tracking optimal control for discrete-time nonminimum phase of electrohydraulic actuator (EHA) system by adopting a combination of feedback and feedforward controller. A linear-quadratic regulator (LQR) is firstly designed as a feedback controller, and a feedforward con...
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my.utm.475022019-04-25T01:21:56Z http://eprints.utm.my/id/eprint/47502/ Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system Ghazali, R. Sam, Y. M. Rahmat, M. F. Zulfatman, Zulfatman Hashim, A. W. I. M. TK Electrical engineering. Electronics Nuclear engineering This paper presents a perfect tracking optimal control for discrete-time nonminimum phase of electrohydraulic actuator (EHA) system by adopting a combination of feedback and feedforward controller. A linear-quadratic regulator (LQR) is firstly designed as a feedback controller, and a feedforward controller is then proposed to eliminate the phase error emerged by the LQR controller during the tracking control. The feedforward controller is developed by implementing the zero phase error tracking control (ZPETC) technique in which the main difficulty arises from the nonminimum phase system with no stable inverse. Subsequently, the proposed controller is performed in simulation and experimental studies where the EHA system is represented in discrete-time model that has been obtained using system identification technique. It also shows that the controller offers better performance as compared to conventional PID controller in reducing phase and gain error that typically occurred in positioning or tracking systems. Hindawi 2012 Article PeerReviewed Ghazali, R. and Sam, Y. M. and Rahmat, M. F. and Zulfatman, Zulfatman and Hashim, A. W. I. M. (2012) Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system. Journal Of Control Science And Engineering, 2012 . ISSN 1687-5249 http://dx.doi.org/10.1155/2012/670635 DOI:10.1155/2012/670635 |
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TK Electrical engineering. Electronics Nuclear engineering Ghazali, R. Sam, Y. M. Rahmat, M. F. Zulfatman, Zulfatman Hashim, A. W. I. M. Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system |
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This paper presents a perfect tracking optimal control for discrete-time nonminimum phase of electrohydraulic actuator (EHA) system by adopting a combination of feedback and feedforward controller. A linear-quadratic regulator (LQR) is firstly designed as a feedback controller, and a feedforward controller is then proposed to eliminate the phase error emerged by the LQR controller during the tracking control. The feedforward controller is developed by implementing the zero phase error tracking control (ZPETC) technique in which the main difficulty arises from the nonminimum phase system with no stable inverse. Subsequently, the proposed controller is performed in simulation and experimental studies where the EHA system is represented in discrete-time model that has been obtained using system identification technique. It also shows that the controller offers better performance as compared to conventional PID controller in reducing phase and gain error that typically occurred in positioning or tracking systems. |
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Article |
author |
Ghazali, R. Sam, Y. M. Rahmat, M. F. Zulfatman, Zulfatman Hashim, A. W. I. M. |
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Ghazali, R. Sam, Y. M. Rahmat, M. F. Zulfatman, Zulfatman Hashim, A. W. I. M. |
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Ghazali, R. |
title |
Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system |
title_short |
Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system |
title_full |
Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system |
title_fullStr |
Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system |
title_full_unstemmed |
Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system |
title_sort |
simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system |
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Hindawi |
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2012 |
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http://eprints.utm.my/id/eprint/47502/ http://dx.doi.org/10.1155/2012/670635 |
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