基于差动保护的矿井变电站防越级跳闸技术研究

Research on Overstep Trip Prevention Technology of Mine Substation Based on Differential Protection

首先叙述了煤矿防越级跳闸传统解决方法,随后在此基础上,通过差动保护的利用,对区域集控式防越级跳闸系统,以及电流突变量采样值差动保护原理,进行了深入的研究分析,实现对煤矿变电站防越级跳闸技术的改进,有效推动了煤矿用电安全技术的发展,为煤矿安全生产保驾护航。

This paper first describes the traditional solution of override trip prevention in coal mine. Then,through the use of differential protection,the regional centralized control system for override trip prevention and the principle of differential protection based on current sudden change sampling value are deeply studied and analyzed. The improvement of override trip prevention technology in coal mine substation is realized and the safety technology of coal mine power consumption is effectively promoted.