摘要
针对目前电力系统存在的电能质量问题,为大功率电力电子器件的普遍应用造成的谐波污染问题和负载无功功率需求过大引起的电压波动问题,文中使用可同时对系统谐波和无功需求进行补偿的有源滤波器(APF)进行电能质量的改善,其谐波检测基于瞬时无功功率理论的Ip-Iq电流法,结构使用具有投切灵活、保护装置简单的并联型APF,并采用滞环电流控制。通过MATLAB/SIMULINK仿真证明了APF对系统电能质量改善的有效性。
The main reasons of power quality problems in power system are the general application of electronic devices and the load reactive power and voltage fluctuation caused by excessive demand.In this paper,active power filter（APF） which can mitigate harmonic currents and compensate reactive power simultaneously was applied to improve power quality.The Ip-Iq current detection method was adopted to detect harmonics.Using hysteresis current control,shunt active power filter was chosen for its flexible operation and simple protection equipments.Simulation results with MATLAB/SIMULINK show the effectiveness of APF.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2010年第4期103-106,共4页
Proceedings of the CSU-EPSA
关键词
有源滤波器
电能质量
谐波
无功补偿
active power filter（APF）
power quality
harmonics
reactive power compensation
