Protection Scheme for VSC-MTDC System with Fault Current Limiter
Zhou Guangyang1, Li Yan2,3, He Darui2,3, Han Minxiao1, Huang Wenerda1
1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing 102206 China; 2. State Grid Jiangsu Economic Research Institute Nanjing 210000 China; 3. State Grid Jiangsu Electric Power Design Consulting Co.Ltd Nanjing 210000 China
Abstract：With fast rising speed, the DC fault current in modular multilevel converter (MMC) based multi terminal high-voltage DC (MTDC) system can be pretty huge, which makes it difficult for the existing hybrid DC circuit breaker (DCCB) to quickly and effectively isolate the fault area. To solve this problem, a new protection scheme was proposed. By comparing the effects between inductive type superconducting fault current limiter (I-SFCL) and resistive type SFCL (R-SFCL) on fault current, R-SFCL with more current limiting advantages was selected and establishing an equivalent model of quenching and recovering based on experiment. By analyzing the cooperation principle of R-SFCL and DCCB, the new protection scheme by coordinating R-SFCL and DCCB was proposed. The correctness and efficiency of the scheme was verified on PSCAD/EMTDC based on Zhoushan Project. Simulation results show that the proposed scheme can quickly isolate the fault area, realize the fault ride-through capacity for non-faulty terminals, which further enhances the stability of the MTDC system.
作者简介: 周光阳 女,1996年生,博士研究生,研究方向为柔性直流输电。E-mail:sunshinezgy@126. com
引用本文:
周光阳, 李妍, 何大瑞, 韩民晓, 黄闻而达. 含限流器的多端柔直系统故障保护策略[J]. 电工技术学报, 2020, 35(7): 1432-1443.
Zhou Guangyang, Li Yan, He Darui, Han Minxiao, Huang Wenerda. Protection Scheme for VSC-MTDC System with Fault Current Limiter. Transactions of China Electrotechnical Society, 2020, 35(7): 1432-1443.
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2020, Vol. 35 
