煤矿电压暂降成因与治理

Causes and Treatment of Coal Mine Voltage Sag

随着煤矿行业生产机械化程度越来越高,变频器和大功率直流提升机等含有电力电子器件的设备大量运用于煤矿行业,煤矿电网中非线性和冲击性负载比例逐渐增加,直接导致了煤矿电网的电压质量下降,尤以电压暂降问题突出。文章针对电压暂降对煤矿生产的影响,并结合具体电压暂降事件,经过现场测试,确定发生电压暂降的原因,提出相应的治理措施,为煤矿行业该类事件的治理提供借鉴和参考。

With the increasing degree of mechanization in the coal mine industry, a large number of equipment containing power electronic devices such as inverters and high-power DC hoists are used in the coal mine industry, which has caused the non-linear and impact loads of the coal mine power grid to increase, directly This has reduced the voltage quality of coal mine power grids, especially the problem of voltage sags. The article introduces the impact of voltage sags on coal mine production. Based on specific voltage sag events, through field testing, the causes of voltage sags are analyzed, and corresponding control measures are proposed to provide management for such events in the coal mine industry. Borrow and reference.