摘要
单相电弧接地故障是中压配电网中的主要故障形式,建立准确的接地电弧模型对于故障分析是十分必要的。文中在MATLAB平台上构建了基于弧隙能量平衡理论的接地电弧模型,通过与实测波形相比较,证明该电弧模型能有效地反映实际接地电弧的特性,并利用小波变换,提取电弧电压、电流的暂态信息,对故障信号的奇异点进行分析,确定故障时刻。
To analyze single-phase arc grounding faults in medium voltage distribution networks, a new grounding arc model is built based on the arc gap energy-balance theory via MATLAB. Comparison between the simulation waveform and the experimental one indicates that thJLs model can describe the characteristics of actual arc grounding fault, extract transient information of arc voltage and current via wavelet transform, analyze the singularity of fault signal, and determine the fault moment.
出处
《高压电器》
CAS
CSCD
北大核心
2011年第9期95-99,106,共6页
High Voltage Apparatus
基金
陕西省教育厅科研计划资助项目(2010JK688)~~
