铜矿6kV母线谐波抑制与无功补偿的参数摄动分析

Perturbation analysis of harmonic suppression and reactive power compensations parameters of copper mine's 6 kV bus

阐述了铜矿变电所负载工作时谐波产生的原因,提出将无源电力滤波器(Passive Power Filter,PPF)与有源电力滤波器(Active Power Filter,APF)相结合,来滤除铜矿6 kV侧电网的谐波污染,同时进行无功补偿。考虑电网电抗与频率的摄动,在设计无源滤波装置时对其参数进行摄动分析.并通过对变电所6 kV母线谐波电流的测量结果验证了方案的可行性与有效性。

This paper expounds the reason why harmonic takes place when substation, in copper mine, is loading. It proposes filtering harmonic of the 6 kV electric power network in copper mine and making reactive power compen- sation at the meantime by combing passive power filter and active power filter. Concerning the perturbation of network＇s reactance and frequency, perturbation of parameters from the design of non - filtering equipment is ana- lyzed. The feasibility and efficiency is tested and verified by the test of harmonic current of the 6 kV bus.