대한전기학회논문지:시스템및제어부문D (The Transactions of the Korean Institute of Electrical Engineers D)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

포화구동기를 갖는 선형 시스템의 H$\infty$ 추종 제어기 설계

Design of H$\infty$ tracking control for linear systems with saturating actuators

  • 이연규 (충북대학교 대학원 제어계측공학과) ;
  • 김명순 (충북대학교 대학원 제어계측공학과) ;
  • 김진훈 (충북대학교 전기전자공학부)
  • 발행 : 2005.04.01
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초록

In this paper, we consider the H$\infty$ tracking control of linear system with a limited actuator capacity. The considered reference is a general time-varying one with bounded magnitude and rate. By adopting a similarity transform and a new sto variable, we convert the original system equation to new one which has a tracking error as a part of the new state variable. First, we obtain a result on the low-gained H$\infty$ tracking control which never permits the actuator saturation. Next, we give a result on scheduled H$\infty$ tracking control which uses the actuator capacity more effectively. All results are in the form of linear matrix inequalities(LMI) which can be easily checked their feasibility. Finally, we give a numerical example to show the validity and usefulness of our results.

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참고문헌

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