DocumentCode :
560117
Title :
Dissipativity analysis for control affine systems in closed-loop with parameterized Jurdjevic-Quinn feedback controllers
Author :
Hudon, N. ; Bao, J.
Author_Institution :
Sch. of Chem. Eng., Univ. of New South Wales, Sydney, NSW, Australia
fYear :
2011
fDate :
10-11 Nov. 2011
Firstpage :
278
Lastpage :
283
Abstract :
This paper considers dissipativity-based analysis for control affine systems in closed-loop with damping feedback controllers. The approach is based on the computation of a locally-defined potential using a geometric decomposition of the drift vector field. The obtained potential is used to construct a damping feedback controller of the Jurdjevic-Quinn type. Dissipativity analysis of the controlled system is carried using an approximate realization of a target dissipative system to construct a storage function. The particular dissipative realization considered in the present paper is shown to exist under mild assumption on the Hessian of the computed potential which is locally-defined in a neighborhood of a desired equilibrium. The approach is then used to characterize excess or shortage of passivity of the closed-loop system, as parameterized by controller gains, which is a problem of interest in the context of decentralized control of interconnected systems. The proposed design approach is illustrated using an example.
Keywords :
closed loop systems; decentralised control; feedback; closed loop system; control affine system; damping feedback controller; decentralized control; dissipative realization; dissipativity analysis; drift vector field; interconnected system; parameterized Jurdjevic-Quinn feedback controller; storage function; target dissipative system; Adaptive control; Context; Damping; Feedback control; State feedback; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Australian Control Conference (AUCC), 2011
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4244-9245-9
Type :
conf
Filename :
6114361
Link To Document :
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