Robust control of discrete systems

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Robust control of discrete systems

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A robust controller is designed by minimising the deviation of the frequency response of perturbed plant at selected frequencies. The plant perturbations are generated by uncertainty in the coefficients of the plant transfer function.

Inspec keywords: discrete systems; control system synthesis; stability; transfer functions; frequency response

Other keywords: perturbations; perturbed plant; discrete systems; transfer function; frequency response; uncertainty; robust control; control system synthesis

Subjects: Control system analysis and synthesis methods; Discrete control systems; Stability in control theory

References

    1. 1)
      • H. Kimura . Robust stabilisability for a class of transfer functions. IEEE Trans. , 9 , 788 - 793
    2. 2)
      • H. Kwakernaak . Minimax frequency domain performance and robustness optimisation of linear feedback systems. IEEE Trans. , 10 , 994 - 1004
    3. 3)
      • C.S. Berger . Robust controller design by minimisation of the variation of the coefficients of the closed-loop characteristic equation. IEE Proc. D , 3 , 103 - 107
    4. 4)
      • J.P. Norton . (1986) , An introduction to identification.
    5. 5)
      • D.J. Cloud , B. Kouvaritakis . Statistical bounds on multivariable frequency response: an extension of the generalised Nyquist criterion. IEE Proc. D , 3 , 97 - 110
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