Protection of large partitioned MTDC Networks Using DC-DC converters and circuit breakers

查看全文 作　　者：Md Habibur [1]Rahman;Lie [1]Xu;Liangzhong [2]Yao

机构地区：[1]University of Strathclyde,Glasgow,UK;[2]China Electric Power Research Institute,Beijing,China.

出　　处：《Protection and Control of Modern Power Systems》索引2016年第1卷第1期,共9页

基　　金：supported in part by China Electric Power Research Institute(CEPRI). 摘　　要：This paper proposes a DC fault protection strategy for large multi-terminal HVDC(MTDC)network where MMC based DC-DC converter is configured at strategic locations to allow the large MTDC network to be operated interconnected but partitioned into islanded DC network zones following faults.Each DC network zone is protected using either AC circuit breakers coordinated with DC switches or slow mechanical type DC circuit breakers to minimize the capital cost.In case of a DC fault event,DC-DC converters which have inherent DC fault isolation capability provide‘firewall’between the faulty and healthy zones such that the faulty DC network zone can be quickly isolated from the remaining of the MTDC network to allow the healthy DC network zones to remain operational.The validity of the proposed protection arrangement is confirmed using MATLAB/SIMULINK simulations. 关键词：DC circuit breaker DC-DC converter DC fault HVDC Modular multilevel converter(MMC) Network

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Protection of large partitioned MTDC Networks Using DC-DC converters and circuit breakers

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