基于端口电压分析的低压故障电弧检测

为了减少故障电弧引发电气火灾带来的损失,现阶段最为有效可行的方法,是在电气系统中安装可靠的故障电弧检测装置,在故障电弧产生时快速作出保护措施。文章将运用simulink进行仿真,构建故障电弧仿真模型,低压配电系统模型。测量其端口电压波形。电流通过分析低压配电系统端口电压,对其波形进行周期积分变化处理,对比正常情况波形周期积分变换值,给出周期故障电弧判定条件。

In order to reduce the loss caused by the electric fire caused by the fault arc, the most effective and feasible method is to install the reliable fault arc detection device in the electric system at present, and to make the protection measures quickly when the fault arc occurs. In this paper, the fault arc simulation model and the low-voltage distribution system model will be con-structed by using Simulink simulation, and the port voltage waveform is measured. By analyzing the port voltage of the low voltage distribution system, the waveform of the current is treated with periodic integral change, and the periodic fault arc judgement condi-tion is given by comparing the periodic integral transformation value of the waveform under normal conditions.