A Novel PCCM Boost PFC Converter With Fast Dynamic Response

被引：78

作者：

Zhang, Fei ^{[1
]}

Xu, Jianping ^{[1
]}

机构：

[1] SW Jiaotong Univ, Sch Elect Engn, Chengdu 610031, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2011年 / 58卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Dynamic response; power-factor correction (PFC); pseudo-continuous conduction mode (PCCM); PCCM boost PFC converter; DESIGN; CONTROLLERS; RECTIFIER;

D O I：

10.1109/TIE.2010.2098368

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A novel pseudo-continuous conduction mode (PCCM) boost power-factor-correction (PFC) converter and its corresponding control strategy are proposed in this paper. Connecting a power switch in parallel with the inductor makes the boost converter operate in PCCM, which provides an additional degree of control freedom to realize PFC control. Therefore, a simple and fast voltage control loop of the PCCM boost PFC converter can be designed to realize output-voltage regulation. The additional degree of control freedom introduced by inductor current freewheeling operation of the PCCM boost PFC converter has been exploited through the dead-zone control technique, which can be dynamically adjusted in accordance with the output-voltage ripple. Compared with continuous conduction mode (CCM) boost PFC converter, the controller of the proposed PCCM boost PFC converter is much simpler. Moreover, the PCCM boost PFC converter benefits with reduced inductor-current ripple and improved power factor compared with boost PFC converter operating in discontinuous conduction mode (DCM). Analysis, simulation, and a 400-W prototype of the PCCM boost PFC converter have been presented and compared with those of boost PFC converters operating in conventional CCM and DCM. The results show that the dynamic response of the PCCM boost PFC converter is significantly faster than the existing boost PFC converter.

引用

页码：4207 / 4216

页数：10

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