DocumentCode :
853065
Title :
Sensitivities of stability constraints and their applications
Author :
Biernacki, R.
Author_Institution :
Texas A&M University, College Station, TX, USA
Volume :
31
Issue :
7
fYear :
1986
fDate :
7/1/1986 12:00:00 AM
Firstpage :
639
Lastpage :
642
Abstract :
Let the real polynomial (a(s) = a_{0} + a_{1}s + ... + a_{n}s^{n} with the coefficients being known differentiable functions a_{k}(x) be given and let the constraints g_{i}(x) > 0 determine the strictly Hurwitz property of the polynomial a(s) . A simple and efficient method to calculate the derivatives \\partial g_{i}(x)/\\partial x_{j} is proposed. Then, the application of the method to the problem of stability of polynomials under coefficient perturbation by gradient optimization is discussed. Also, a theorem characterizing the stability region and the newly introduced regions of nondestabilizing perturbations is given.
Keywords :
Gradient methods; Sensitivity; Stability; Artificial intelligence; Automatic control; Control systems; Gradient methods; Optimization methods; Polynomials; Stability criteria;
fLanguage :
English
Journal_Title :
Automatic Control, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9286
Type :
jour
DOI :
10.1109/TAC.1986.1104348
Filename :
1104348
Link To Document :
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