基于故障点电压的单相自适应重合闸判据(英文)  

A New Adaptive Single-pole Autoreclosure Technique Based on Calculation of Fault Point Voltage

作　　者：李博通 李永丽 

机构地区：[1]Key Laboratory of Smart Grid of Ministry of Education,Tianjin University

出　　处：《电力系统自动化》2013年第10期86-91,共6页Automation of Electric Power Systems

基　　金：supported by National Natural Science Foundation ofChina(No.50477037,No.50607014)

摘　　要：A new adaptive single-pole autoreclosure technique based on the magnitude of fault point voltage is presented.After fault phase tripping,the fault point voltage of transient faults is essentially different from that of permanent faults,so the magnitude of fault point voltage is used to distinguish fault nature.Fault point voltage can be calculated through uniform transmission line equation.Considering that fault point voltage changes with fault location and transition resistance,a concept of real-time action voltage setting is put forward.The technique solves the problem that criterions based on terminal voltage could be easily affected by inductive coupling voltage and transition resistance.Simulation results show that the method is reliable.A new adaptive single-pole autoreclosure technique based on the magnitude of fault point voltage is presented.After fault phase tripping,the fault point voltage of transient faults is essentially different from that of permanent faults,so the magnitude of fault point voltage is used to distinguish fault nature.Fault point voltage can be calculated through uniform transmission line equation.Considering that fault point voltage changes with fault location and transition resistance,a concept of real-time action voltage setting is put forward.The technique solves the problem that criterions based on terminal voltage could be easily affected by inductive coupling voltage and transition resistance.Simulation results show that the method is reliable.

关 键 词：自适应重合闸 点电压 故障相 技术 计算 单极 永久性故障 传输线方程 

分 类 号：TM762.2[电气工程—电力系统及自动化] TN949.11[电子电信—信号与信息处理]