单相升/降压PFC变换器分阶段电流优化控制技术研究

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Abstract Work principle of single-phase Buck-cascaded Boost-Buck high power factor correction rectifier is analyzed, and drawbacks of the traditional control scheme are summarized. Based on the analysis, a novel piecewise optimized control scheme is proposed, and the corresponding flowchart is given. According to the new control scheme, the current control technology of average mode control and charge control is used in boost stage and Buck stage separately, which ensures the good input current in the whole fundamental period. Finally, the validity of theory analysis and effectiveness of the control scheme is verified through experimental results, and the future research work need to be done is pointed out also.

Key words： Step-up and step-down power factor correction piecewise optimization integrated control scheme

Received: 12 April 2012 Published: 05 November 2014

PACS:

TM461

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	Mao Peng
	Wang Chuanyun
	Jia Hongyun

Cite this article:

Mao Peng,Wang Chuanyun,Jia Hongyun. Research on Single-Phase Boost/Buck PFC Converter with Piecewise Optimized Current Control Scheme[J]. Transactions of China Electrotechnical Society, 2014, 29(10): 122-126.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I10/122

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