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Reduction of controller fragility by pole sensitivity minimization
Whidborne, J.F.; Istepanian, R.S.H.; Jun Wu;
Automatic Control, IEEE Transactions on
Volume 46,
Issue 2,
Feb. 2001
Page(s):320
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325
Abstract:
Presents a method for the reduction of controller fragility. The method is based on the sensitivity of closed-loop poles to perturbations in the controller parameters. By means of a state space parameterization of the controller, the closed-loop pole sensitivity can be reduced. A controller fragility measure based on the closed-loop pole sensitivity is proposed. Conditions for the optimal state-space realization of the controller are presented, along with a numerical method for obtaining the solution
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