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Robust stability analysis of discrete-time systems using genetic algorithms

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3 Author(s)
M. S. Fadali ; Dept. of Electr. Eng., Nevada Univ., Reno, NV, USA ; Yongmian Zhang ; S. J. Louis

We reduce stability robustness analysis for linear, time-invariant, discrete-time systems to a search problem and attack the problem using genetic algorithms. We describe the problem framework and the modifications that needed to be made to the canonical genetic algorithm for successful application to robustness analysis. Our results show that genetic algorithms can successfully test a sufficient condition for instability in uncertain linear systems with nonlinear polynomial structures. Three illustrative examples demonstrate the new approach

Published in:

IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans  (Volume:29 ,  Issue: 5 )