• Title/Summary/Keyword: Sum-of-Square(SOS) condition

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Design of Output Feedback Controller for Polynomial Fuzzy Large-Scale System : Sum-of-Square Approach (다항식 퍼지 대규모 시스템의 출력 궤환 제어기 설계 : 제곱합 접근 방법)

  • Kim, Han-Sol;Joo, Young-Hoon;Park, Jin-Bae
    • Journal of the Korean Institute of Intelligent Systems
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    • 제21권5호
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    • pp.549-554
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    • 2011
  • This paper presents the stabilization method for polynomial fuzzy large-scale system by using output feedback controller. Each sub system of the large-scale system is transformed into polynomial fuzzy model, and then output feedback controller is designed to stabilize the large-scale system. Stabilization condition is derived as sum-of-square (SOS) condition by applying the polynomial Lyapunov function. This condition can be easily solved by SOSTOOLS which is the third party of the MATLAB. From these solutions, output feedback controller gain can be obtained by SOS condition. Finally, a simulation example is presented to illustrate the effectiveness and the suitability of the proposed method.