南方电网技术2024，Vol.18Issue(2)：39-46,8.DOI:10.13648/j.cnki.issn1674-0629.2024.02.005
低压直流断路器拓扑参数对燃弧时长影响研究
Research on the Influence of Topology Parameters of Low-Voltage DC Circuit Breaker on Arcing Duration
摘要
Abstract
The mechanical DC circuit breaker based on LC oscillating commutation can suppress the breaking arc,reliably remove the faulty line,and ensure the safe operation of the system.In order to analyze the influence of topological parameters of mechanical DC circuit breaker on its breaking,based on the principle of artificial zero-crossing arc suppression,a simulation model of DC circuit breaker is built in MATLAB/Simulink,and the effect of arc suppression under different models is analyzed.On this basis,the arc sup-pression simulation is carried out for the topology parameters of the circuit breaker under different commutation modes,and the influ-ence of controllable parameters and uncontrollable parameters on the arcing duration is discussed.The simulation results show that in forced oscillation and self-excited oscillation commutation modes,controllable parameters have different effects on arcing duration,and uncontrollable parameters such as arc time constant and arc heat dissipation power have the same effect on arcing duration.This research results can provide effective reference for the design of arc suppression topology for DC circuit breakers.关键词
直流断路器/电弧模型/振荡电路/强制振荡/自激振荡/燃弧时长Key words
DC circuit breaker/arc model/oscillatory circuit/forced oscillation/self-exctied oscillation/arc duration分类
动力与电气工程引用本文复制引用
孔令哲,何柏娜,李辉,娄辉,边晨曦,孟凡涛,戴雪婷,刘雨佳..低压直流断路器拓扑参数对燃弧时长影响研究[J].南方电网技术,2024,18(2):39-46,8.基金项目
国家重点研发计划资助项目(2021YFB2401104) （2021YFB2401104）
山东省自然科学基金资助项目(ZR2021ME057) （ZR2021ME057）
山东省研究生教育质量提升计划项目(SDYAL2022114).Supported by the National Key Research and Development Program of China(2021YFB2401104) （SDYAL2022114）
the Natural Science Foundation of Shandong Province(ZR2021ME057) （ZR2021ME057）
the Graduate Education Quality Improvement Program of Shandong Province(SDYAL2022114). （SDYAL2022114）
