受电铁影响的煤矿电网电能质量问题研究

Study on Electric Power Quality Problem of Mine Electric Power Supply Network Affected by Electrified Railway System

为掌握与电气化铁路系统共网运行煤矿供电系统的电能质量现状及特点,提高煤矿供电安全性,保障治理方案有效性,结合某110 kV等级煤矿电网实际供电情况,运用电能质量测试技术、稳健回归谐波源定位技术、PsCad负序电流仿真技术等方法,分析了电气化铁路影响下煤矿电网的电能质量现状、三相不平衡原因及谐波流向上的新特点,为后续电能质量治理技术的选择及治理点的确定提供了科学依据。

In order to master the electric power quality status and features of the mine electric power supply system jointly operated with the mine electrified railway system, to improve the mine electric power supply safety and to protect the affectivity of the mine control plan, in combination with the actual electric power supply conditions of a 110 kV mine electric power network, the electric power quality measuring and test technology, the stable regression harmonic source position technology, the PsCad negative sequence current simulation technology and other method were applied to analyze the electric power quality status of the mine electric network, three phase unbalanced cause and the harmonic current upward features under the influences of the electrified railway to provide the scientific basis to the selection and control of the later electric power quality control technology.