Journal of the Institute of Electronics Engineers of Korea CI (전자공학회논문지CI)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Study on the Relaxed Stability of Fuzzy Control Systems

퍼지 제어 시스템의 완화된 안정조건에 관한 연구

  • 김은태 (국립 한경대학교 제어계측공학과) ;
  • 이창훈 (연세대학교 전기컴퓨터공학과) ;
  • 박민용 (연세대학교 전기컴퓨터공학과)
  • Published : 2000.09.01
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Abstract

In this paper, we propose a new condition to test the quadratic stability of fuzzy control systems. The Proposed one enlarges the class of fuzzy control systems whose stability is ensured by representing the interactions among the fuzzy subsystems in a single power matrix and solving it by LMI (linear matrix inequality). Compared with the previous methods, the proposed one relaxes the stability condition to release the conservatism. Finally, the relationship between the suggested condition and the conventional well-known stability conditions reported in the previous literatures is discussed and it is shown in a rigorous manner that the proposed one includes the conventional conditions.

본 논문에서는 퍼지 제어 시스템의 2차 안정도를 판정하는 새로운 방법을 제안한다. 퍼지 부 시스템간의 상호 작용을 선형행렬부등식을 이용하여 수치적으로 다룸으로서 제안한 방법은 안정도가 보장되는 퍼지 시스템의 영역을 넓히는 결과를 갖는다. 기존의 방식과 비교하여 제안된 안정조건은 기존의 안정조건을 완화한 것으로 엄밀한 방식으로 제안된 방식이 기존의 방식을 포함한 완화된 조건임을 보인다.

Keywords

References

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