LIU HUIQIANG, LI DANDAN, LIU SHICHUAN, et al. Control and Protection of Multiple-terminal Flexible DC Distribution Network Based on MMC. [J]. Power capacitor & reactive power compensation, 2024, 45(2): 84-90.
LIU HUIQIANG, LI DANDAN, LIU SHICHUAN, et al. Control and Protection of Multiple-terminal Flexible DC Distribution Network Based on MMC. [J]. Power capacitor & reactive power compensation, 2024, 45(2): 84-90. DOI: 10.14044/j.1674-1757.pcrpc.2024.02.013.
For improving stable operation ability of multi terminal flexible direct distribution network system
the divided urban medium voltage distribution network is interconnected firstly in this paper
the multi terminal flexible DC hybrid distribution network is designed
and the selection of main converter equipment is designed; Based on the droop control strategy and combined with the curve characteristics of power reference value translation
the DC voltage slope control method considering voltage limit is applied to multi terminal flexible direct distribution network
and the converter protection configuration strategy of design case is formulated. The application case of 10 kV multi terminal flexible direct distribution network is set up in PSCAD/EMTDC. Finally
the effectiveness of DC voltage slope control strategy and protection configuration scheme is verified by simulation.
关键词
直流配电网MMC电压下垂控制保护配置
Keywords
DC distribution networkMMCvoltage droop controlprotection configuration