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Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
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Title Non-fragile Guaranteed Cost Controller Design for Uncertain Time-delay Systems via Delayed Feedback
Authors 권오민(Kwon, Oh-Min) ; 박주현(Park, Ju-Hyun)
Page pp.458-465
ISSN 1975-8359
Keywords Non-fragile ; LMI ; Lyapunov method ; Time-delay ; Uncertain Systems
Abstract In this paper, we propose a non-fragile guaranteed cost controller design method for uncertain linear systems with constant delyas in state. The norm bounded and time-varying uncertainties are subjected to system and controller design matrices. A quadratic cost function is considered as the performance measure for the system. Based on the Lyapunov method, an LMI(Linear Matrix Inequality) optimization problem is established to design the controller which uses information of delayed state and minimizes the upper bound of the quadratic cost function for all admissible system uncertainties and controller gain variations. Numerical examples show the effectiveness of the proposed method.