中压直流断路器内部电弧特征分析与模型验证

Analysis and Model Validation of Arc Characteristics Inside Medium Voltage Direct Current Circuit Breaker

基于Cassie和Schwarz电弧模型,借助Matlab/Simulink平台,对中压直流断路器内部电弧特性进行仿真分析。采用参数扫描策略研究了每种模型的电弧电压、电流的瞬态响应,确定了模型中每个参数对输出结果的影响。通过对比仿真和实测结果,验证了Schwarz电弧模型的正确性,适用于中压直流断路器电弧研究。

Based on Cassie and Schwarz arc models, with the help of Simulink platform in Matlab, this paper carried out simulation analysis for the arc characteristics inside medium voltage direct current circuit breakers. The parameter scanning strategy was used to research on the transient response of arc voltage and current for each model, so as to determine the impacts of each parameter in the model on the output result.Via comparing the simulation results with the experimental results, the correctness of Schwarz arc model is verified, which is suitable for the research of medium voltage direct current circuit breakers arc.