小电流接地系统单相接地故障畸变量分析  

Analysis on the Aberration of Small Current Grounding System Single-phase Ground Fault

作　　者：关永刚[1] 赵玉林[1] 梁秋艳[2] 韩如坤[3] 

机构地区：[1]东北农业大学工程学院,哈尔滨150030 [2]佳木斯大学,黑龙江佳木斯154007 [3]烟台汽车工程职业学院,山东烟台265500

出　　处：《农业科技与装备》2010年第6期61-63,共3页Agricultural Science & Technology and Equipment

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.

关 键 词：农业工程 单相接地故障 小电流接地 MATLAB仿真 

分 类 号：TM726[电气工程—电力系统及自动化]