煤矿6/10kV电网电容电流测量算法的分析与研究  

Analysis and Research of Capacitive Current Measurement Algorithm about Coalmine 6/10 kV Grid

作　　者：孙引忠 师丽霞[2] 李志奇[2] 周瑞[2] 

机构地区：[1]河南许平煤业有限公司,河南平顶山467500 [2]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《煤炭技术》2015年第1期279-282,共4页Coal Technology

基　　金：国家自然科学基金(51107143)

摘　　要：矿井供电网络电缆长度的增加,使系统电容电流超标情况越发普遍。因系统单相接地故障引起的弧光过电压导致设备绝缘损伤、瓦斯爆炸等事故时有发生,为保护矿井供电系统的安全运行,对矿井电网的电容电流进行测量具有十分重要意义。对电网对地电容电流的测量方法,进行了详细的理论分析,并基于MATLAB和PSCAD这两种仿真软件做了大量的仿真实验,指出了各测量方法的适用范围、优点及局限性。With the increasing of cable,distribution capacitance effects between ground and cable are increasing,so as the capacitive current of mine power grid. The equipment insulation damage caused by arc over-voltage,gas explosion and other accidents has occurred because of single-phase grounded fault. In order to ensure the safety of the mine power supply system,it is very important to measure capacitive current in the mine power supply system. The methods for measuring capacitance phase-to-earth current in distribution networks has been analyzed in detail,and many simulative experiments are completed by using MALAB and PSCAD. Their advantages and limitations are indicated in this paper.

关 键 词：煤矿电网 电容电流 综合测量方法 MATLAB PSCAD 

分 类 号：TM933.1[电气工程—电力电子与电力传动]