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		Yanhong LIU,Jianyong LI,Bing CHU,Honghai TANG,Lijun ZHANG.[en_title][J].Control Theory and Technology,2013,11(2):215~221.[Copy]

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YanhongLIU,JianyongLI,BingCHU,HonghaiTANG,LijunZHANG
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(School of Electrical Engineering, Zhengzhou University;School of Computer Science and Information Engineering, Zhengzhou University of Light Industry;Department of Electronics and Computer Science, University of Southampton;State Grid Corporation of China;School of Automation, Harbin Engineering University)

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Received:April 15, 2011Revised:June 18, 2012

基金项目:This work was supported by the National Natural Science Foundation of China (Nos. 60974005, 61104004), the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20094101120008), the Natural Science Foundation of Henan Province (No. 092300410201), and the Science and Technique Research Program of Henan Educational Committee (No. 13A520379).

Decentralized robust control of multiple static var compensators via Hamiltonian function method

Yanhong LIU,Jianyong LI,Bing CHU,Honghai TANG,Lijun ZHANG

(School of Electrical Engineering, Zhengzhou University;School of Computer Science and Information Engineering, Zhengzhou University of Light Industry;Department of Electronics and Computer Science, University of Southampton;State Grid Corporation of China;School of Automation, Harbin Engineering University)

Abstract:

Using the energy-based Hamiltonian function method, this paper investigates the decentralized robust nonlinear control of multiple static var compensators (SVCs) in multimachine multiload power systems. First, the uncertain nonlinear differential algebraic equation model is constructed for the power system. Then, the dissipative Hamiltonian realization of the system is completed by means of variable transformation and prefeedback control. Finally, based on the obtained dissipative Hamiltonian realization, a decentralized robust nonlinear controller is put forward. The proposed controller can effectively utilize the internal structure and the energy balance property of the power system. Simulation results verify the effectiveness of the control scheme.

Key words: Static var compensators Multimachine multiload power systems Uncertain nonlinear differential algebraic systems Dissipative Hamiltonian realization Decentralized robust control