Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator

This paper presents the design and development of a robust proportional derivative (PD) controller based on linear matrix inequality (LMI) for the control of a hub angular position and end-point deflection of a planar two-link flexible manipulator. The dynamics of the manipulator is uncertain and ti...

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Main Authors: Mohamed, Z., Khairudin, M., Husain, A. R., Subudhi, B.
Format: Article
Published: SAGE Publications Inc. 2016
Subjects:
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author Mohamed, Z.
Khairudin, M.
Husain, A. R.
Subudhi, B.
author_facet Mohamed, Z.
Khairudin, M.
Husain, A. R.
Subudhi, B.
author_sort Mohamed, Z.
collection ePrints
description This paper presents the design and development of a robust proportional derivative (PD) controller based on linear matrix inequality (LMI) for the control of a hub angular position and end-point deflection of a planar two-link flexible manipulator. The dynamics of the manipulator is uncertain and time varying due to the variation of payloads that result in large variations in the excitation of flexible modes. Practical design steps are presented in which the LMI-based conditions are formulated to obtain a robust PD gains to control the flexible manipulator. The robust controller has an advantage as compared to the Ziegler-Nichols tuned PD controller as the identified PD gains can be used to control the system under various loading conditions. The performances of the proposed controller are evaluated in terms of input tracking capability of the hub angular position response and level of deflection of both links of the flexible manipulator. Experimental results show that despite using the same sets of PD gains, LMI-PD control provides better robustness and system performance.
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spelling utm.eprints-738332017-11-18T08:09:01Z http://eprints.utm.my/73833/ Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator Mohamed, Z. Khairudin, M. Husain, A. R. Subudhi, B. TK Electrical engineering. Electronics Nuclear engineering This paper presents the design and development of a robust proportional derivative (PD) controller based on linear matrix inequality (LMI) for the control of a hub angular position and end-point deflection of a planar two-link flexible manipulator. The dynamics of the manipulator is uncertain and time varying due to the variation of payloads that result in large variations in the excitation of flexible modes. Practical design steps are presented in which the LMI-based conditions are formulated to obtain a robust PD gains to control the flexible manipulator. The robust controller has an advantage as compared to the Ziegler-Nichols tuned PD controller as the identified PD gains can be used to control the system under various loading conditions. The performances of the proposed controller are evaluated in terms of input tracking capability of the hub angular position response and level of deflection of both links of the flexible manipulator. Experimental results show that despite using the same sets of PD gains, LMI-PD control provides better robustness and system performance. SAGE Publications Inc. 2016 Article PeerReviewed Mohamed, Z. and Khairudin, M. and Husain, A. R. and Subudhi, B. (2016) Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator. JVC/Journal of Vibration and Control, 22 (5). pp. 1244-1256. ISSN 1077-5463 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958533011&doi=10.1177%2f1077546314536427&partnerID=40&md5=7c0a4f82919031f9d98f7dd5f3885835
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Mohamed, Z.
Khairudin, M.
Husain, A. R.
Subudhi, B.
Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator
title Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator
title_full Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator
title_fullStr Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator
title_full_unstemmed Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator
title_short Linear matrix inequality-based robust proportional derivative control of a two-link flexible manipulator
title_sort linear matrix inequality based robust proportional derivative control of a two link flexible manipulator
topic TK Electrical engineering. Electronics Nuclear engineering
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AT khairudinm linearmatrixinequalitybasedrobustproportionalderivativecontrolofatwolinkflexiblemanipulator
AT husainar linearmatrixinequalitybasedrobustproportionalderivativecontrolofatwolinkflexiblemanipulator
AT subudhib linearmatrixinequalitybasedrobustproportionalderivativecontrolofatwolinkflexiblemanipulator