基于大型露天矿山供电系统稳定策略的综述

Overview of Power Supply System Stability Strategy Based on Large Open Pit Mine

大山220kV变电站作为德兴铜矿供电主站,其运行稳定性对整个露天矿山供电极其重要,近年来该站进行了主要设备的全面改造,但其相关的配套设施、联络站及用户侧设备老旧落后,导致整个矿山供电系统稳定性仍受到多种因素干扰和挑战。比如长距离架空输电线路故障高发、雷电活动频繁对系统防雷电考验、一些用电设备无规律性自动投入运行等等。基于变电站安全稳定运行要求,对露天矿山供电系统稳定性进行分析和策略研究具有重要意义。

Dashan 220kV substation is the main power supply station of Dexing Copper Mine,which operation stability is extremely important to the entire open pit mine power supply.In recent years,the main equipment of the substation has been comprehensively transformed.But the related supporting facilities,liaison station and user side equipment backward,and lead to the interference and challenge of various factors on the stability of the whole mine power supply system.For example,the long distance overhead transmission line has a high failure rate,frequent lightning activities frequently test the system’s lightning protection,and some electrical equipment is put into operation automatically without regularity etc.Based on the requirements of safe and stable operation of substation,it is of great significance to analyze and study the stability of power supply system in open pit mine.