输出本安型准Z源Buck变换器CCM模式小信号建模与控制

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Abstract To a novel output intrinsic safety Quasi-Z-Source(QZS) Buck converter, a 4-order dynamic model is derived. The variance of the non-dominant poles caused by the change of the QZS network parameters and its influence to the high order system performance are analyzed. It is verified that, when the QZS network parameters L₁, C₁ are much smaller than conventional Buck converter LC filter network parameters, the two kinds converters have the similar open-loop frequency characteristics. Therefore, the conventional Buck converter compensator design method can be used directly to design the controller of the QZS Buck Converter. Finally, the experiment results are given which verify the correctness of the above analysis.

Key words： Intrinsic safety quasi-Z-source Buck converter small signal modeling controller design

Received: 05 December 2011 Published: 25 March 2014

PACS:

TN624

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	Articles by authors
	Cheng Hong
	Wang Cong
	Ge Biao
	Zhu Jinbiao

Cite this article:

Cheng Hong,Wang Cong,Ge Biao等. Small Signal Modeling and Control of the Output Intrinsic Safety Quasi-Z-Source Buck Converter in CCM[J]. Transactions of China Electrotechnical Society, 2013, 28(3): 222-227.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I3/222

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