Power Loss Model and Efficiency Analysis of a Boost Full-bridge Isolated Converter based on SiC MOSFETs for PV applications
编号:36 访问权限:仅限参会人 更新:2020-10-29 23:09:37 浏览:295次 口头报告

报告开始:2020年11月02日 09:00(Asia/Shanghai)

报告时间:15min

所在会场:[B] Power Electronics Technology and Application [B2] Session 13 and Session 18

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摘要
This paper introduces the power loss model and efficiency analysis of the current-type active-clamped boost full-bridge isolated converter (BFBIC) used in the medium voltage photovoltaic DC boost system. SiC BFBIC is developed by using silicon carbide semiconductor devices. Silicon carbide has the advantages of high switching frequency and low loss, which can effectively reduce the volume of the converter and improve the overall efficiency. According to the ZVS modulation technology of BFBIC, the accurate loss model and calculation formula of SiC BFBIC are derived. Through simulation results and A 5kV/50kW experimental prototype, the power loss of each loss element at different loads at 50kHz switching frequency of full-bridge MOSFETs is analyzed, and the power loss distribution of each switching device under full load is also analyzed. The results show that the developed model can replicate the actual operating conditions of BFBIC and accurately calculate converter efficiency over a wide load range. The calculation results show that the theoretical efficiency of SiC BFBIC is 98.59%, which can significantly reduce the power loss and heating of the photovoltaic DC converter.
关键词
Boost full-bridge isolated converter(BFBIC),SiC MOSFET,power loss,efficiency test
报告人
Degang Dou
Institute of Electrical Engineering Chinese Academy of Sciences; University of Chinese Academy of Sciences

稿件作者
Degang Dou Institute of Electrical Engineering Chinese Academy of Sciences; University of Chinese Academy of Sciences
Yibo Wang University of Chinese Academy of Sciences;Institute of Electrical Engineering, Chinese Academy of Sciences
Yu Zhou Institute of Electrical Engineering, Chinese Academy of Sciences
Miaomiao Wei Institute of Electrical Engineering, Chinese Academy of Sciences
Huan Wang University of Chinese Academy of Sciences;Institute of Electrical Engineering Chinese Academy of Sciences
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重要日期
  • 会议日期

    11月02日

    2020

    11月04日

    2020

  • 10月27日 2020

    初稿截稿日期

  • 11月03日 2020

    报告提交截止日期

  • 11月04日 2020

    注册截止日期

  • 11月17日 2020

    终稿截稿日期

主办单位
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
承办单位
Huazhong University of Science and Technology
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