The State Feedback Control Based on Fuzzy Observer for T-S Fuzzy Systems with Unknown Time-Delay(Systems and Control)

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概要

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• In this paper, we present an output feedback controller using a fuzzy controller and observer for nonlinear systems with unknown time-delay. Recently, Cao et al. proposed a stabilization method for the nonlinear time-delay systems using a fuzzy controller when the time-delay is known. In general, however, it is impossible to know or measure this time-varying delay. The proposed method requires only the upper bound of the derivative of the time-delay. We represent the nonlinear system with the unknown time-delay by Takagi-Sugeno (T-S) fuzzy model and design the fuzzy controller and observer for the systems using the parallel distributed compensation (PDC) scheme. In addition, we derive the sufficient condition for the asymptotic stability of the equilibrium point by applying Lyapunov-Krasovskii theorem to the closed-loop system and solve the condition in the formulation of LMI. Finally, computer simulations are included to demonstrate the effectiveness of the suggested method.

• 社団法人電子情報通信学会の論文
• 2003-09-01

著者

• Park M

  Intelligent Control System Lab The Graduate School Of Yonsei University

• Park Mignon

  Dept. Of Electronic Eng. Yonsei Univ.

• Kim E

  Department Of Electrical And Electronic Eng. Yonsei University

• SHIN Hyunseok

  DM Research Lab., LG Electronics Inc.

• SHIN Hyunseok

  Dept. of Electrical and Electronic Eng., Yonsei University

• KIM Euntai

  Dept. of Electrical and Electronic Eng., Yonsei University

• Shin Hyunseok

  Dm Research Lab. Lg Electronics Inc.

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