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煤炭工程  2014 

煤矿井下供电防越级跳闸新技术

DOI: 10.11799/ce201401006, PP. 18-21

Keywords: 越级跳闸,GOOSE,以太网通讯,短路保护,煤矿供电

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Abstract:

针对煤矿供电系统普遍存在的越级跳闸现状,分析比较了目前提出的防止越级跳闸的几种主要方案,基于目前井下保护控制器的现状和已经具备的施工条件,提出了一种基于GOOSE闭锁的具有选择性短路保护的保护控制器。在现有的保护控制器上增加GOOSE通讯模块与监控系统共用一个以太网实现闭锁信息的可靠传递。测试和运行结果表明基于GOOSE闭锁的保护控制器可以快速准确地确定故障点位置,选择距离故障点最近的开关跳闸,有效地避免了因越级跳闸造成的大面积停电,提高了煤矿供电系统的可靠性和安全性,减少了安全隐患。

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