CJEE

Chinese Journal of Electrical Engineering ›› 2020, Vol. 6 ›› Issue (4): 15-27.doi: 10.23919/CJEE.2020.000027

Special Issue: Special Issue on Switched-Capacitor Circuits and Partial Processing Techniques

• Special Issue Papers • Previous Articles     Next Articles

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A Double Input-parallel-output-series Hybrid Switched-capacitor Boost Converter

Jianfei Chen1,*, Kewei Ding1, Yulin Zhong2, Fujin Deng3, Sayed Abulanwar4   

  1. 1. Department of Electrical and Computer Engineering, Wayne State University, Michigan 48202, USA;
    2. Broad-Ocean Technologies, Novi, Michigan 30120, USA;
    3. School of Electrical Engineering, Southeast University, Nanjing 210096, China;
    4. Electrical Engineering Department, Mansoura University, Mansoura 35516, Egypt
  • Received:2020-10-11 Revised:2020-11-13 Accepted:2020-12-01 Online:2020-12-25 Published:2021-01-15
  • Contact: *E-mail: cjf6221@gmail.com
  • About author:Jianfei Chen received the B.S. degree from the Department of Electronic Information, Science, and Technology, Chongqing Normal University, Chongqing, China, in June 2011, and the Ph.D. degree from School of Electrical Engineering, Chongqing University, Chongqing, China, in June 2016. From January 2015 to March 2016, he served as a visiting Ph.D. student at the Department of Energy Technology, Aalborg University, Aalborg, Denmark. Since October 2016, he has been a postdoctoral researcher at Wayne State University, Detroit, Michigan, USA. His current research interests include hybrid switched-capacitor converter, multilevel converter, motor control, EV charger and wide bandgap device applications.
    Kewei Ding received his B.S. degree from Hubei Institute of Automobile Industry. Wuhan, China, in 2017 majoring in electrical engineering, and his M.S. degree from Wayne State University, Detroit, Michigan, USA, in 2019, majoring in electrical engineering. His research interests include multilevel converters, DC-DC converters and DC grid. Now he is working in Shanghai Liang xiang DDG High-tech Company.
    Yulin Zhong received the B.S. degree from the School of Electrical Engineering, Xi’an Jiaotong University (XJTU), China, in 1996, and the M.S. and Ph.D. degrees in power electronics from Tsinghua University, China, in 2005 and 2009 respectively. From 1996 to 2002, he worked first as an electrical engineer and later as a software engineer in Guangdong, China. During 2009-2014, he worked as an assistant researcher at the Institute of Electrical Engineering, Chinese Academy of Sciences, China. During 2014-2016 he worked as a post-doctor fellow at Ryerson University, Canada. During 2016-2018, he worked as a research scholar at Kettering University first, and later at University of Michigan Dearborn, USA. Now he is a senior system engineer of power electronics in Broad-Ocean Technologies, USA. His main research interests focus on packaging design for high power semiconductor modules, system-level structural design, circuit design, EMC design, and thermal design for EV-related applications.
    Fujin Deng (S’10-M’13) received the B.E. degree in electrical engineering from the China University of Mining and Technology, Jiangsu, China, in 2005, the M.S. degree in electrical engineering from Shanghai Jiao Tong University, Shanghai, China, in 2008, and the Ph.D. degree in energy technology from Aalborg University, Aalborg, Denmark, in 2012. In 2017, he joined Southeast University, Nanjing, China, where he is currently a professor with the School of Electrical Engineering. From 2013 to 2015 and from 2015 to 2017, he was a postdoctoral researcher and an assistant professor, respectively, with the Department of Energy Technology, Aalborg University. His main research interests include wind power generation, multilevel converters, high-voltage direct-current technology, dc grids, and offshore wind farm power systems dynamics.
    Sayed Abulanwar (S’12-M’16) received the B.S. and M.S. degrees in electrical engineering from Mansoura University, Mansoura, Egypt, in 2005 and 2010, respectively, and the Ph.D. degree from Aalborg University, Aalborg, Denmark, in 2016. He is currently an assistant professor of electrical engineering with Mansoura University. His research interests include wind turbine control, high-voltage direct-current systems, and transients in power systems.

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Abstract: A double input-parallel-output-series hybrid switched-capacitor boost (DIPOS-HSCB) converter is proposed which consists of two different kinds of input-parallel-output-series (IPOS) circuits, i.e., inner IPOS circuit and outer IPOS circuit. Two boost modules and one switched-capacitor network build an inner IPOS circuit based IPOS-HSCB converter and two IPOS-HSCB converters develop the outer IPOS circuit based DIPOS-HSCB converter. With the proposed DIPOS-HSCB converter, a high voltage-gain with low component stress and small input current ripple are achieved. Furthermore, an automatic current balancing function for all input inductor currents can be also achieved using a special carrier phase-shifted modulation scheme. A prototype rated at 200 V/120 W has been developed and the maximum efficiency of the proposed DIPOS-HSCB converter is 95% at 120 W. Both steady and dynamic results are presented to validate the effectiveness of the proposed DIPOS-HSCB converter.

Key words: IPOS, switched-capacitor, boost converter, phase-shifted modulation, automatic current balancing