基于模糊理论的井下漏电故障选线研究  

Research on fault line selection of underground leakage based on fuzzy theory

作　　者：胥良 高建鑫 XU Liang;GAO Jianxin(School of Electrical and Control Engineering,Heilongjiang University of Science and Technology,Harbin 150022,China)

机构地区：[1]黑龙江科技大学电气与控制工程学院,哈尔滨150022

出　　处：《黑龙江电力》2021年第4期325-329,共5页Heilongjiang Electric Power

摘　　要：针对煤矿井下供电系统的单相接地故障选线可靠性低等问题,采用零序电流群体比幅法、注入信号法和零序电流基波比相法,分别计算故障测度以及权重系数的隶属度函数,通过模糊理论将它们进行融合。仿真结果表明,采用数据融合的方法可以提高供电系统单相接地短路时排除故障的可靠性。Aiming at the low reliability of single-phase grounding fault line selection in underground power supply system of coal mine,zero sequence current group amplitude comparison method,injection signal method and zero sequence current fundamental wave phase ratio method are used to calculate the membership function of fault measure and weight coefficient respectively,and they are fused by fuzzy theory.The simulation results show that the use of data fusion method can improve the reliability of troubleshooting when the power supply system is single-phase to ground short-circuit.

关 键 词：接地故障 模糊理论 故障测度 权重系数 

分 类 号：TM755[电气工程—电力系统及自动化]