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Research on Bridgeless Dual Boost PFC Converter with Integrated Magnetics
Received:November 29, 2018  Revised:January 29, 2019
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DOI:
Keywords:integrated magnetics  low reluctance magnetic circuit  dual Boost  power factor correction
Fund Project:the Innovation Foundation of Kehua Hengsheng
              
AuthorInstitutionEmail
CAI Fenghuang caifenghuang@fzu.edu.cn
WANG Qunxing College of Electrical Engineering and Automation,Fuzhou University;Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center 361295282@qq.com
MIAO Zhonglei College of Electrical Engineering and Automation,Fuzhou University;Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center
DU Weihuang College of Electrical Engineering and Automation,Fuzhou University;Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center
SU Xianjin Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center
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Abstract:
      By omitting bridge rectifier,the efficiency of the traditional bridgeless dual Boost power factor correction(PFC) converter is improved,but it has small power density and large volume because two inductors are needed. Four kinds of integrated magnetic technologies were analyzed,a mid-column low reluctance magnetic circuit inductor integrated method was adopted,two inductors of bridgeless dual Boost PFC converter were integrated to reduce the system volume,through analysis and calculation,the circuit topology can avoid the circulation problem. The improved deadbeat control algorithm was adopted to eliminate the control deviation because of sampling delay and calculation delay,the input current control accuracy was improved.A 750W experiment prototype was built,the theoretical analysis was verified.
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