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在我国的铜矿开采中,由于采用的大型设备较多,负荷较重,且矿井供电线路一般较长,造成线路损耗大,功率因数低;同时供电网络随着变频器的增多,谐波逐步增多,供电质量不可靠。而动态无功补偿装置(又称静止同步补偿器),与早期的电容器补偿装置相比,其谐波低,效率高,动态响应更为迅速,应用于矿井电力系统中可更为有效地提高电网功率因数,改善电网供电质量,降低损耗。下面即以丰山铜矿为例,对动态无功补偿装置在矿山供电系统中的设计应用进行分析。
In China’s copper mining, due to the use of large equipment, heavy load, and the mine power supply lines are generally longer, resulting in line loss, low power factor; while the power supply network with the inverter increases, the harmonic gradually Increased, power quality is not reliable. The dynamic reactive power compensation device (also known as static synchronous compensator), compared with the early capacitor compensation device, the low harmonic, high efficiency, more rapid dynamic response, used in mine power system can be more effectively improve Grid power factor, improve power quality, reduce losses. The following is taking Fengshan Copper Mine as an example, the dynamic reactive power compensation device in the mine power supply system design and application analysis.