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MMC Dual-port Grid-forming Control for Efficient and Stable Interconnection of HVDC and HVAC
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Guoqing XUE1, Xianguo GUI2, Xiong LI3
Journal of Power Supply | 2024, 22(3) : 287 - 297
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Journal of Power Supply | 2024, 22(3): 287-297
• Power System •
MMC Dual-port Grid-forming Control for Efficient and Stable Interconnection of HVDC and HVAC
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Guoqing XUE1, Xianguo GUI2, Xiong LI3
Affiliations
  • 1 School of Equipment Engineering, Shanxi Vocational University of Engineering Science and Technology Jinzhong 030619 China
  • 2 School of Electrical Engineering and Automation, Harbin Institute of Technology Harbin 150006 China
  • 3 State Grid Shanghai Electric Power Company Shanghai 200437 China
Published: 2024-05-30 doi: 10.13234/j.issn.2095-2805.2024.3.287
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Aimed at the problem that the control modes of interconnecting power converters (IPCs) are complicated to assign and difficult to control when different types of power grids are connected, a novel grid-forming(GFM) control method for IPCs that interconnect high voltage direct current (HVDC) and high voltage alternating current (HVAC) sub-grids is proposed. This method uses modular multilevel converters (MMCs) to control AC and DC terminals simultaneously. In addition, two dual-port GFM MMC control strategies are put forward. Finally, a simulation comparison between single-port GFM control and the proposed two-port GFM control is performed. Results show that compared with the single-port GFM control, the two-port GFM control method is more flexible to emergencies(i.e., line and generator outage), and there is no need to choose the control mode of GFM or grid-following(GFL) for IPC ports in the power grid.

Modular multilevel converter(MMC)  /  smart grid  /  grid-forming(GFM) control  /  grid-following(GFL) control  /  converter
Guoqing XUE, Xianguo GUI, Xiong LI. MMC Dual-port Grid-forming Control for Efficient and Stable Interconnection of HVDC and HVAC[J]. Journal of Power Supply, 2024 , 22 (3) : 287 -297 . DOI: 10.13234/j.issn.2095-2805.2024.3.287
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.3.287
  • Receive Date：2022-05-09
  • Online Date：2025-07-21
  • Published：2024-05-30
Article Data
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History
  • Received：2022-05-09
  • Revised：2023-02-27
  • Accepted：2023-03-01
Affiliations
    1 School of Equipment Engineering, Shanxi Vocational University of Engineering Science and Technology Jinzhong 030619 China
    2 School of Electrical Engineering and Automation, Harbin Institute of Technology Harbin 150006 China
    3 State Grid Shanghai Electric Power Company Shanghai 200437 China
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