Title :
Controller reduction: weights for stability and performance preservation
Author :
Goddard, P.J. ; Glover, K.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
Abstract :
In this paper we investigate the design of reduced order controllers using an H∞ framework. Provided there exists a stabilising controller, K0, giving satisfactory closed loop performance we derive frequency weights such that if ||W 2-1(K-K0)W1-1 ||∞<1 then K is also a stabilising controller satisfying the same level of closed loop performance
Keywords :
closed loop systems; control system synthesis; large-scale systems; optimal control; stability; stability criteria; H∞ control; closed loop performance; controller reduction; performance preservation weights; reduced order controller design; stability weights; Approximation error; Frequency; H infinity control; Linear systems; Optimal control; Reduced order systems; Stability; Sufficient conditions; Transfer functions; Weight control;
Conference_Titel :
Decision and Control, 1993., Proceedings of the 32nd IEEE Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-1298-8
DOI :
10.1109/CDC.1993.325729
