Transactions of the Society of Instrument and Control Engineers
Online ISSN : 1883-8189
Print ISSN : 0453-4654
ISSN-L : 0453-4654
A Design Method of Simultaneous Stabilizing Controller Which Optimizes Closed-Loop Characteristics
Kazuhiko HIRAMOTOHitoshi DOKIGoro OBINATA
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1997 Volume 33 Issue 9 Pages 875-881

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Abstract

In this paper, we consider the design problem of simultaneous stabilizing controller which takes into account various closed-loop performances, e.g. sensitivity or robust stability etc.. Using the parametrization of simultaneous stabilizing controller, this problem is formulated as a standard model-matching-type problem whose objective function is affine in the design parameter. Under this formulation, a simple sufficient condition to achieve simultaneous stabilization is derived as in the form of an inequality H norm constraint on the design parameter. Moreover, we show that the presented design problem including above constraint can be cast as convex optimization problem. By a design example, the effectiveness of the proposed method is presented.

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