摘要
介绍一种新的基于DSP的高压电网自适应选线式漏电保护方案,采用自适应欠补偿方式、随机整定与相敏比较来判断故障支路,实现选择性漏电保护,具有灵敏度高,选线准确,并适用于不同接地方式的特点。
Introduces a new DSP-based adaptive line-selective leakage protection program of high-voltage power network. It adopts adaptive under-compensation, random tuning and phase-sensitive comparison to judge the fault branch and achieve selective leakage protection, and provides high sensitivity, line selection accuracy, and suitable to different grounding.
出处
《煤矿机电》
2008年第3期93-94,97,共3页
Colliery Mechanical & Electrical Technology
关键词
矿井高压电网
自适应
漏电保护
DSP
mine high-voltage power network
adaptive
leakage protection