• Title/Summary/Keyword: stability hypersphere

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Design of a Robust Controller Perturbations using Plant Parameter (플랜트 매개변수 섭동을 이용한 강인 제어기 설계)

  • Hwang, Yu,-Sub
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.42 no.4 s.304
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    • pp.19-24
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    • 2005
  • In this paper, some algorithms for robust stabilization of linerar time - invariant single - input - multi output(SIMO) systems subject to parameter perturbatations are presented. .The range of structure perturbation was obtained by using the gradient optimization algorithm. These algorithms iteratively enlarge the stability hypersphere in plant parameter space and can be used to design a robust controller to stabilize a plant subject to givien range of parameter ecxursions.

Design of a Controller using Algorithm in the Robust Controller (강인제어기 알고리즘을 이용한 제어기 설계)

  • Hwang, Yu-Sub
    • Journal of the Korean Society of Industry Convergence
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    • v.7 no.2
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    • pp.215-220
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    • 2004
  • In this paper, some algorithms for robust stabilization of linerar time - invariant single - input - multi output (SIMO) systems subject to parameter perturbatations are presented. At first, the determination algorithm of the largest stable hypersphere in the parameter space of a given characteristic polynomial with its coefficient perturbations near some stable nominal values is presented. These algorithms iteratively enlarge the stability hypersph ere in plant parameter space and can be used to design a controller to stabilize a plant subject to givien range of parameter ecxursions.

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Robust Controller Design in Parameter Space (플랜트 매개 변수 공간상의 강인 안정화 제어기 설계)

  • Hwang, Hu-Mor
    • Proceedings of the KIEE Conference
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    • 1992.07a
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    • pp.285-287
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    • 1992
  • This paper considers the design of robust stabilizing controller of a linear time-invariant digital system subject to variations of parameter vector. For a given controller the radius of the largest stability hypersphere in this parameter space is calculated. This radius is a measure of the stability Margin of the closed-loop system. Based on this calculation a design procedure is proposed to robustify a given stabilizing controller. This algorithm iteratively enlarges the stability hypersphere in parameter space and can be used to design a controller to stabilize a plant subject to given ranges of parameter perturbations. These results are illustrated by an example.

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