DocumentCode :
2222800
Title :
Global Control of Multi-Machine Power Systems for Transient Stability Enhancement
Author :
Zhang, G.H. ; Wang, Y. ; Hill, D.J.
Author_Institution :
Australian Nat. Univ., Canberra
fYear :
2007
fDate :
1-3 Oct. 2007
Firstpage :
934
Lastpage :
939
Abstract :
This paper presents a global control strategy for multi-machine power systems to enhance transient stability. The global control system models are proposed to represent the power systems with abrupt structure changes. Multi-machine power systems are first represented by interconnected subsystems with uncertainties and nonlinearities. Then each subsystem is decomposed into four nonlinear partial systems according to switching actions of breakers under a severe disturbance. The partial feedback controllers are respectively designed for partial models and the decentralized controllers for each subsystem are obtained through membership functions. Finally, the global controller is the summation of all the control actions from every subsystem. A three-machine power system is used as an example to demonstrate the effectiveness of the proposed global control strategy for multi-machine power systems.
Keywords :
control nonlinearities; control system synthesis; decentralised control; feedback; interconnected systems; nonlinear control systems; power system control; power system transient stability; time-varying systems; uncertain systems; breaker switching actions; control nonlinearities; decentralized controllers; global control system models; interconnected subsystems; membership functions; multimachine power systems; nonlinear partial systems; partial feedback controller design; transient stability enhancement; uncertain systems; Adaptive control; Control system synthesis; Control systems; Power system control; Power system interconnection; Power system modeling; Power system stability; Power system transients; Power systems; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Applications, 2007. CCA 2007. IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0442-1
Electronic_ISBN :
978-1-4244-0443-8
Type :
conf
DOI :
10.1109/CCA.2007.4389353
Filename :
4389353
Link To Document :
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