摘要
农村电网中单相接地是最常见的故障隐患,必须快速排除接地点,以免发生短路故障。为此,借助MATLAB的仿真工具箱,模拟线路在电压相位、过渡阻抗、距离等不同的情况下,发生单相接地时电压、电流波形的变化,通过提取电流波形畸变量来实现单相接地故障定位。
single phase grounding in rural power is the most common fault hidden danger,we must exclude the earthing point fast,so as to avoid the shorted fault. This paper draws support from the simulation toolbox of MATLAB,simulating the change of voltage and current waveform when single phase grounding that the line is in different circumstances of voltage phase,transition impedance and distance.It realizes the single phase grounding fault localization by extracting the distortion amount of current waveform.
出处
《农机化研究》
北大核心
2010年第5期201-203,211,共4页
Journal of Agricultural Mechanization Research
关键词
单相接地故障
小电流接地
MATLAB仿真
single phase grounding fault
small current neutral grounding
MATLAB simulation
