DocumentCode :
3424937
Title :
Safe LPV controller switching
Author :
Trangbaek, Klaus
Author_Institution :
Dept. of Electron. Syst., Autom. & Control, Aalborg Univ., Aalborg, Denmark
fYear :
2011
fDate :
12-15 Dec. 2011
Firstpage :
3428
Lastpage :
3433
Abstract :
Before switching to a new controller it is crucial to assure that the new closed loop will be stable. In this paper it is demonstrated how stability can be checked with limited measurement data available from the current closed loop. The paper extends an existing method to linear parameter varying plants and controllers. Rather than relying on frequency domain methods as done in the LTI case, it is shown how to use standard LPV system identification methods. It is furthermore shown how to include model uncertainty to robustify the results. By appropriate filtering, it is only necessary to evaluate the worst case gain of the additive uncertainty, making the analysis relatively simple.
Keywords :
closed loop systems; filtering theory; frequency-domain analysis; identification; linear systems; stability; time-varying systems; additive uncertainty; closed loop system; filtering; frequency domain methods; linear parameter varying plants; model uncertainty; safe LPV controller switching; stability; standard system identification methods; worst case gain; Computational modeling; Robustness; Stability analysis; Switches; Trajectory; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control and European Control Conference (CDC-ECC), 2011 50th IEEE Conference on
Conference_Location :
Orlando, FL
ISSN :
0743-1546
Print_ISBN :
978-1-61284-800-6
Electronic_ISBN :
0743-1546
Type :
conf
DOI :
10.1109/CDC.2011.6160391
Filename :
6160391
Link To Document :
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