Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer
This paper presents a new robust control scheme for a class of electro-hydraulic actuator using dynamic sliding mode control associated with nonlinear disturbance observer. Switching-gain of the sliding mode is designed to be adaptable on the estimated disturbance. A switching-gain adaptation mechan...
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Korean Society of Precision Engineering
2015
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my.utm.553482017-08-06T07:43:43Z http://eprints.utm.my/id/eprint/55348/ Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer Has, Zulfatman Rahmat, Mohd. Fuad Husain, Abdul Rashid Ahmad, Mohamad Noh TK Electrical engineering. Electronics Nuclear engineering This paper presents a new robust control scheme for a class of electro-hydraulic actuator using dynamic sliding mode control associated with nonlinear disturbance observer. Switching-gain of the sliding mode is designed to be adaptable on the estimated disturbance. A switching-gain adaptation mechanism is proposed to obtain as small as possible switching-gain to minimize chattering effect. The scheme is developed to guarantee the tracking precision of the system with robust and smooth control actions in the existence of uncertainties and the changes of external disturbance. Capability of the proposed scheme is enhanced by varying boundary layers algorithm to assist the scheme to return to its ability in a larger change of external disturbance. Capability and effectiveness of the proposed scheme are validated through experiment, where the results indicate that the proposed scheme ensures the tracking precision of the system with robust and smooth control actions in a large change of external load disturbance. Moreover, smooth control actions that are produced by the proposed control scheme offer a significant efficiency of energy in the control of electro-hydraulic actuator systems. Korean Society of Precision Engineering 2015-06-23 Article PeerReviewed Has, Zulfatman and Rahmat, Mohd. Fuad and Husain, Abdul Rashid and Ahmad, Mohamad Noh (2015) Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer. International Journal of Precision Engineering and Manufacturing, 16 (8). pp. 1753-1760. ISSN 2234-7593 http://dx.doi.org/10.1007/s12541-015-0230-y DOI:10.1007/s12541-015-0230-y |
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TK Electrical engineering. Electronics Nuclear engineering Has, Zulfatman Rahmat, Mohd. Fuad Husain, Abdul Rashid Ahmad, Mohamad Noh Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer |
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This paper presents a new robust control scheme for a class of electro-hydraulic actuator using dynamic sliding mode control associated with nonlinear disturbance observer. Switching-gain of the sliding mode is designed to be adaptable on the estimated disturbance. A switching-gain adaptation mechanism is proposed to obtain as small as possible switching-gain to minimize chattering effect. The scheme is developed to guarantee the tracking precision of the system with robust and smooth control actions in the existence of uncertainties and the changes of external disturbance. Capability of the proposed scheme is enhanced by varying boundary layers algorithm to assist the scheme to return to its ability in a larger change of external disturbance. Capability and effectiveness of the proposed scheme are validated through experiment, where the results indicate that the proposed scheme ensures the tracking precision of the system with robust and smooth control actions in a large change of external load disturbance. Moreover, smooth control actions that are produced by the proposed control scheme offer a significant efficiency of energy in the control of electro-hydraulic actuator systems. |
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Article |
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Has, Zulfatman Rahmat, Mohd. Fuad Husain, Abdul Rashid Ahmad, Mohamad Noh |
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Has, Zulfatman Rahmat, Mohd. Fuad Husain, Abdul Rashid Ahmad, Mohamad Noh |
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Has, Zulfatman |
title |
Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer |
title_short |
Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer |
title_full |
Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer |
title_fullStr |
Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer |
title_full_unstemmed |
Robust precision control for a class of electro-hydraulic actuator system based on disturbance observer |
title_sort |
robust precision control for a class of electro-hydraulic actuator system based on disturbance observer |
publisher |
Korean Society of Precision Engineering |
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2015 |
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http://eprints.utm.my/id/eprint/55348/ http://dx.doi.org/10.1007/s12541-015-0230-y |
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