低压交流电线故障电弧模型研究  

Research on Arc Model in AC Low-voltage Electrical Wire Fault

作　　者：姜斌峰[1] 王莉[1] 

机构地区：[1]南京航空航天大学自动化学院航空电源重点实验室,南京210016

出　　处：《电力系统及其自动化学报》2009年第4期20-24,共5页Proceedings of the CSU-EPSA

基　　金：国家973基础研究项目资助(2007CB210300);航空支撑科研项目(62001050104)

摘　　要：研究低压交流电线故障电弧模型,对检测低压交流电线故障电弧很必要。文中对Schavemaker模型进行理论分析并进行简化。利用MATLAB软件构建电弧模型,对简化的Schavemaker模型和Mayr模型进行仿真比较,分析简化的Schavemaker模型仿真得出的电弧电流具有更明显的电弧电流零休区,较高di/dt和奇次谐波幅值。最后进行串行和并行电弧实验,实测波形和仿真波形进行比较,验证了仿真结论。结果证明简化的Schavemaker模型适用于低压交流电线故障电弧模型研究。It is necessary to research the are model of low-voltage AC electrical wire fault to detecte electrical wire AC low-voltage arc fault. This paper simplified the Sehavemaker arc model and analyzed the theory. The arc model was built by using MATLAB software. The simulation results of the mayr model and the simplified Schavemaker arc model were compared. The arc fault current of simplified Schavemaker arc model had more obvious zero-current area, the faster di/dt and higher odd harmonic than that of Mayr arc model. According to the test of series and parallel arc, the results of simulation were proved. The result shows that the simplified Schavemaker arc model is appropriate to the research on low-voltage AC electrical wire arc model.

关 键 词：电线故障电弧 故障电弧模型 电弧电流零休区 谐波分析 

分 类 号：TM501.2[电气工程—电器]