摘要
小电流接地系统采用行波法进行单相接地故障定位,具有准确度高、不受接地电阻影响的优点,但定位可靠性与检测量有关。利用MATLAB的仿真工具箱对单相接地故障进行仿真试验,结果表明:采用电流行波畸变量作为单相接地故障判据,比电压行波具有更高的敏感性。
The small current grounding system traveling wave method,using single-phase ground fault location,enjoys high accuracy,without affecting the advantages of grounding resistance.However,the reliability of positioning has something to do with the testing amount.A simulation experiment was conducted on the single-phase ground fault using MATLAB simulation toolbox.The experiment results show that adopting the distortion amount of current traveling waves as a criterion to determine single-phase ground fault is much accurate than using the voltage traveling wave.
出处
《农业科技与装备》
2010年第6期61-63,共3页
Agricultural Science & Technology and Equipment
关键词
农业工程
单相接地故障
小电流接地
MATLAB仿真
agricultural engineering
single phase grounding fault
small current neutral grounding
MATLAB simulation
