基于混杂自动机的准谐振变换器建模及分析

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Abstract Quasi-resonant converter(QRC) is a higher-order, tight-coupling and multi-operating- mode nonlinear system. And its continuous time variables mutually affect with discrete state variables, so it is a hybrid system. Utilizing hybrid system theory, a hybrid automata model is built for a fourth-order QRC operating under continuous currant mode(CCM). Based on the operating-state of switch and stable condition of output voltage, a PI based PFM control method is proposed. Both simulation and experiment results have verified the validation of the proposed method.

Key words： Hybrid automata quasi-resonant converter Matlab/Simulink proportional-integral(PI) controller

Received: 14 July 2014 Published: 25 May 2015

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TM46

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	Tang Chunsen
	Shen Hao
	Li Xiaofei

Cite this article:

Tang Chunsen,Shen Hao,Li Xiaofei. Modeling and Analyzing of Quasi-Resonant Converter Based on Hybrid Automata[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 120-126.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I8/120

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