摘要
配电系统中谐波电流的抑制和无功功率的补偿是改善电能质量和节能降耗的两种技术手段。在实际应用中,存在采用有源电力滤波器抑制谐波、同时采用并联电容器补偿无功的情况。当两者并联接入系统公共连接点的位置不当时,两者之间将会相互影响,甚至导致有源滤波器无法正常运行。本文针对这一现象进行了分析,对电容器与有源滤波器接入方式进行了仿真,为实际中电容器的正确接入提供参考。
Reactive power compensation and harmonic mitigation are important measures to improve power quality.In industrial applications,the active power filter(APF) and shunt capacitor are possibly connected to a distribution system together in order to suppress harmonics and reactive power.Some interactions between APF and capacitor will exist and may cause the APF operate abnormally,when their locations connected to the system is unsuitable.This phenomenon is analyzed and simulated under different connecting schemes of capacitor in this paper,and the results will provide reference for suitable connection of capacitor and APF to a system with harmonic loads.
出处
《电力电容器与无功补偿》
2012年第5期13-16,共4页
Power Capacitor & Reactive Power Compensation
关键词
无功补偿
谐波抑制
有源滤波器(APF)
并联电容器
谐波放大
reactive power compensation
harmonic suppression
active power filter(APF)
shunt capacitor
harmonic amplification