高压电器2023，Vol.59Issue(12)：10-18,9.DOI:10.13296/j.1001-1609.hva.2023.12.002
一种阻容型限流式混合直流断路器拓扑结构研究
Research on Topology of a Resistive-capacitive Type Current-limiting Hybrid DC Circuit Breaker
摘要
Abstract
In view of the large fault short-circuit current and fast rising speed of rail transit DC traction power supply system,the topological structure of 1 800 V resistive capacitive current limiting hybrid DC circuit breaker is pro-posed in this paper,the working principle and complete interruption process are analyzed and the value of the com-plete interruption current limiting parameters are defined.A resistive capacitive current limiting hybrid DC circuit breaker model is set up by using MATLAB/Simulink.The influence of the resistive capacitive current limiting topol-ogy and the traditional inductive current limiting topology on the interruption of the peak of fault short-circuit current and the interruption time of the complete equipment is compared and analyzed,and the effect of the resistive capaci-tive current limiting topology is better.The interruption test platform of the complete equipment is set up and small current interrupting verification is performed.The test results show that,compared with the traditional inductive cur-rent limiting topology,the resistive capacitive current limiting topology can effectively reduce the fault current ampli-tude by more than 30%and the interruption time of the complete equipment is shorten by more than 10%,which is ba-sically identical to that of the simulation results.This paper provides a reference for the development of current limit-ing hybrid DC circuit breaker prototype.关键词
限流式混合直流断路器/开断性能/阻容限流器/整机开断时间/样机研制Key words
current-limiting hybrid DC circuit breaker/interruption performance/resistive-capacitive current limiter/interruption time of the complete equipment/prototype development引用本文复制引用
范钦晓,申森林,程显,葛国伟,王海燕,闫冬冬..一种阻容型限流式混合直流断路器拓扑结构研究[J].高压电器,2023,59(12):10-18,9.基金项目
国家自然科学基金项目(51977195,51777025) （51977195,51777025）
国家轨道交通电气化与自动化工程技术研究中心开放课题(NEEC-2017-B07).Project Supported by National Natural Science Foundation of China(51977195,51777025),National Rail Transportation Electrification and Automation Engineering Technology Research Center(NEEC-2017-B07). （NEEC-2017-B07）
