Coordinated Control of DC Circuit Breakers in Multilink HVDC Grids

作     者：Xibei Zhao Jianzhong Xu Gen Li Jinsha Yuan Jun Liang Xibei Zhao;Jianzhong Xu;Gen Li;Jinsha Yuan;Jun Liang

作者机构：the State Key Laboratory of Alternate Electrical Power System with Renewable Energy SourcesNorth China Electric Power UniversityBeijing 100096China the Technical University of DenmarkDenmark the School of EngineeringCardiff UniversityUK. 

出 版 物：《CSEE Journal of Power and Energy Systems》 (中国电机工程学会电力与能源系统学报（英文）)

年 卷 期：2023年第9卷第6期

页      面：2224-2235页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 080802[工学-电力系统及其自动化] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0807[工学-动力工程及工程热物理] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 0702[理学-物理学] 

基　　金：the National Key R&D Program of China(Grant No.2018YFB0904600) the National Natural Science Foundation of China(Grant No.51777072) 

主　　题：DC circuit breakers(DCCB) DC fault DC grid DC protection fault current limiting 

摘      要：High voltage DC grids are developing in more terminals and with larger transmission capacity,thus the re-quirements for DC circuit breakers(DCCB)will continue to *** methods only use the faulty line DCCB to withstand the fault stress,and therefore this paper presents a coordination method of multiple DCCBs to protect the *** many adjacent DCCBs are tripped to interrupt the fault current,the fault energy is shared,and the requirement for the faulty line DCCB is ***,the adjacent DCCBs are actively controlled to help system *** primary protection,backup protection,and reclosing logic of multiple DCCBs are *** confirm that the proposed control reduces the energy dissipation requirement of faulty line DCCB by approximately 30%-42%,the required current rating for IGBTs is reduced,and the system recovery time is also reduced by 20-40 ms.