Title :
Elimination of frequency search from robustness tests
Author :
Sideris, Athanasios
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
Abstract :
It is demonstrated that the multivariable stability margin can be a discontinuous function of frequency. A method which checks for robustness without a frequency search and thus alleviates the associated difficulties is proposed. It is shown that robustness can be verified by solving only one multivariable stability margin problem, readily constructed from a state-space realization of the given plant
Keywords :
multivariable control systems; stability; state-space methods; frequency search; multivariable stability margin; robustness tests; state-space realization; Algebra; Feedback; Frequency; Hypercubes; Polynomials; Rails; Robust stability; Robustness; Tellurium; Testing;
Conference_Titel :
Decision and Control, 1990., Proceedings of the 29th IEEE Conference on
Conference_Location :
Honolulu, HI
DOI :
10.1109/CDC.1990.203543
