대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(I)
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- Pages.144-147
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- 1987
매개변수 추정 방법 개선에 의한 적응 제어 시스템의 견실성 향상
A robustness enhancement of adaptive control system by improvement of parameter estimation method.
- Choi, Chong-Ho (Dept. of Control and Instrumentation Eng., Seoul National University) ;
- Lhe, Ha-Jeong (Dept. of Control and Instrumentation Eng., Seoul National University)
- 발행 : 1987.07.03
초록
An adaptive control algorithm for a plant with unmodelled dynamics is proposed. The upper bounds of the output due to the unmodelled dynamics and measurement noise is assumed to be known. Linear programming is used in estimating the bounds of plant parameters. Projection type algorithm is used in estimating the plant parameter with these bounds. This algorithm is nearly the same as those proposed by Kreisselmeier or Middleton except that the bounds are computed by linear programming. The stability of the proposed algorithm Can be proved in nearly the same way as that of Middleton. Simulation results show that the proposed algorithm gives better parameter convergence and smaller overshoot in the plant output than the algorithm without computing the bounds of plant parameters by linear programming.
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