矿区供电系统线路保护综述
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摘要
矿区供电系统上下级线路短路电流区分不明显,常造成保护装置出现越级跳闸现象,以致造成较大范围的停电,对正常的生产运营造成较大影响。分析比较了近年国内针对越级跳闸现象所提出的几种主要保护方案,探讨了现阶段最具有实用价值的方案,并指出今后的发展趋势。
The difference of short-circuit current between upper and lower lines of power supply system in mining area is not obvious, which often results in the trip of protection devices, resulting in a wide range of blackouts, which has a greater impact on the normal production and operation. This paper analyzes and compares several main protection schemes put forward in recent years in view of the phenomenon of overstepping tripping in China, probes into the most practical schemes at present, and points out the developing trend in the future.
The difference of short-circuit current between upper and lower lines of power supply system in mining area is not obvious, which often results in the trip of protection devices, resulting in a wide range of blackouts, which has a greater impact on the normal production and operation. This paper analyzes and compares several main protection schemes put forward in recent years in view of the phenomenon of overstepping tripping in China, probes into the most practical schemes at present, and points out the developing trend in the future.
引文
[1]张维振,李忠奎.基于速断闭锁的煤矿高压供电系统防越级跳闸技术研究[J].煤矿现代化,2017(4):40-43.
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[4]姚福强,柏猛,杜兆文.GOOSE信号闭锁在煤矿供电系统防越级跳闸中的应用[J].电力系统及其自动化学报,2016,28(7):37-41.
[5]马星河,马星煊,王永胜.基于数字化变电站技术的煤矿井下防越级跳闸方案研究[J].煤矿机电,2013(5):1-7.
[2]王锬,秦文萍,杨世坤,等.光纤级联纵差保护在井下防越级跳闸的应用[J].煤炭工程,2016(7):75-78.
[3]史丽萍,温树峰,黄延庆.基于CAN网通讯的选择性短路保护研究[J].电力系统保护与控制,2011,39(8):139-142.
[4]姚福强,柏猛,杜兆文.GOOSE信号闭锁在煤矿供电系统防越级跳闸中的应用[J].电力系统及其自动化学报,2016,28(7):37-41.
[5]马星河,马星煊,王永胜.基于数字化变电站技术的煤矿井下防越级跳闸方案研究[J].煤矿机电,2013(5):1-7.