Study on Clamping Type DC Circuit Breaker with Short Fault Isolation Time and Low Energy Dissipation

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

作者机构：the State Key Laboratory of Alternate Electrical Power System with Renewable Energy SourcesNorth China Electric Power UniversityBeijing 102206China the Electric Energy GroupDepartment of Engineering TechnologyTechnical University of Denmark(DTU)2750 BallerupDenmark 

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5期

页      面：1743-1752页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 

基　　金：supported by National Key R&D Program 2018YFB0904600 National Natural Science Foundation of China under grant 51777072 

主　　题：DC circuit breaker DC fault DC protection,HVDC grid MMC 

摘      要：The development of DC grids faces challenges from DC fault *** conventional DC circuit breaker(DCCB)employs metal-oxide varistor(MOV)to isolate the faulted line,in which the fault isolation process is coupled with the energy dissipation *** this study,a clamping type DCCB(CTCB)using internal capacitors to clamp the converter voltage is *** to the proposed configuration,fault isolation and energy dissipation are decoupled,resulting in a fast fault isolation and low energy dissipation compared to the conventional *** working principle of the proposed CTCB is presented and verified in a DC grid simulation model.A comparison is made with the traditional *** fault isolation time can be reduced by 34.5%.The dissipated energy can be reduced by 17.4%.The energy dissipation power can be reduced by 76.2%.