Electric Power ›› 2021, Vol. 54 ›› Issue (1): 25-36.DOI: 10.11930/j.issn.1004-9649.202004222

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A Review on Large Capacity Controllable Switching Current Source Converter Research

CHEN Longlong1,2, XU Fei3, WEI Xiaoguang2, TANG Guangfu2, CUI Xiang1, GAO Chong2, CHEN Qian4   

  1. 1. State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Beijing 102206, China;
    2. State Key Laboratory of Advanced Power Transmission Technology (Global Energy Interconnection Research Institute Co., Ltd.), Beijing 102209, China;
    3. Key Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    4. State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China
  • Received:2020-04-28 Revised:2020-07-08 Online:2021-01-05 Published:2021-01-11
  • Supported by:
    This work is supported by Science and Technology Project of SGCC (Research and Development of Controllable Switching Device Based Current Source Converter,No.5500202058059A0000)

Abstract: The controllable switching current source converter (CSC) is considered to have promising technological advantages over LCC and VSC. The rapid development of reverse blocking high-power semiconductor devices provides a new opportunity for the application of CSC to HVDC system. Firstly, the advantages and disadvantages of the existing CSC topology and modulation methods are investigated in this paper. And then, the LCC-CSC topology and specific harmonic elimination modulation methods suitable for HVDC system are analyzed. Finally, the LCC-CSC based hybrid HVDC system is comprehensively compared with LCC and VSC technologies, and the technical advantages, existing problems and future researches of LCC-CSC are summarized. This work can provide a research basis for application of CSC in high-voltage DC transmission engineering.

Key words: controllable switching current source converter, hybrid high voltage direct current system, self-turn-off power semiconductor