Optimal persistent disturbance attenuation control for linear hybrid systems |
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Authors: | Hai Lin Guisheng Zhai Panos J Antsaklis |
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Institution: | 1. Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576, Singapore;2. Department of Mechanical Engineering, Osaka Prefecture University, 1-1 Gakuen-Cho, Sakai, Osaka 599-8531, Japan;3. Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN 46556, USA |
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Abstract: | In this paper, the disturbance attenuation properties for a class of linear hybrid systems are investigated, and a hybrid optimal persistent disturbance attenuation control problem is studied. First, a procedure is developed to determine the minimal l∞ induced gain of linear hybrid systems. However, for general hybrid systems, the termination of the procedure is not guaranteed. Then, the decidability issues are discussed. The termination of the procedure in a finite number of steps is shown for a subclass of hybrid systems with simplified discrete event dynamics, called switched linear systems. Finally, the optimal persistent disturbance attenuation controller synthesis problem is studied. It is shown that the optimal performance level can be achieved by a piecewise linear state feedback control law, and a systematic approach is proposed to design such feedback control. |
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Keywords: | Disturbance attenuation Robust performance Hybrid dynamical systems Switched systems Invariant sets Induced gain |
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