摘要
低压电网在继电保护中对于动作可靠性与快速性有极高的要求,以光纤网络为媒介,分析了现阶段煤矿井下低压电网的继电保护网络。利用MATLAB对不同情况下的非正常线路进行仿真,对数据进行比较判断,并提出微机判据。该数据在同一时钟下采集,可以可靠地代替传统延时继电保护,保证最短时间内判断并处理低压供电系统异常情况。
In the relay protection, the low voltage power network has a high requirement to the reliability and rapidity of operation. The relay protection network of the low voltage power network in coal mine is analyzed based on the optical fiber network. The data are compared with the abnormal line in different conditions by MATLAB simulation, and the computer criterion is put forward. The data acquisition under the same clock can be used to replace the traditional time delay protection, guarantee the shortest time to judge and deal with the abnormal situation of the low voltage power supply system.
出处
《煤矿机电》
2016年第4期13-17,共5页
Colliery Mechanical & Electrical Technology
关键词
低压电网
光纤网络
继电保护
漏电保护
low voltage power network
optical fiber network
relay protection
leakage protection
