Robustness analysis and gain-scheduled controller synthesis for rational parameter-dependent uncertain systems using parameter-dependent Lyapunov functions

Robustness analysis and gain-scheduled controller synthesis for rational parameter-dependent uncertain systems using parameter-dependent Lyapunov functions

F. Wang and V. Balakrishnan

In Proc. IEEE Conference on Decision and Control, pages 281-286, Phoenix, Arizona, December 1999


Abstract: For linear systems with a rational dependence on some unknown but measurable time-varying parameters, we use parameter-dependent Lyapunov functions to devise algorithms for robust stability analysis and gain-scheduled controller synthesis. A sufficient condition for the existence of a parameter-dependent Lyapunov function that proves robust stability is given in terms of a finite number of linear matrix inequalities. This sufficient condition is then used to solve the gain-scheduled stabilizing controller synthesis problem.
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