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Generalized Nyquist Stability of Perturbed Systems

  • Alexander Weinmann

Abstract

Analysis and design of control systems in the frequency domain is one of the best known methods in control engineering. The stability of single-input single-output systems is investigated via transfer function calculus and Nyquist criterion (Leithead, W.E., and O'Reilly, J., 1991). Multi-input multi-output systems require the transfer matrix operations and characteristic loci. When plants are perturbed characteristic loci can be still used if they are augmented by E-contours or structured E-contours.

Keywords

Transfer Matrix Stability Margin Stereographic Projection Riemann Sphere Structure Perturbation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1991

Authors and Affiliations

  • Alexander Weinmann
    • 1
  1. 1.Department of Electrical EngineeringTechnical University ViennaAustria

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