电力系统自动化Issue(12)：119-124,135,7.DOI:10.7500/AEPS20130525003
改进的有源电力滤波器滞环电流控制策略
An Improved Hysteretic Current Method for Active Power Filter
摘要
Abstract
In view of the considerable loss due to unstable switch frequency and wide frequency range in high harmonic distortion existing in traditional hysteresis control strategy for the three-phase voltage source pulse-width modulation (PWM) rectifier, an improved control algorithm for active power filter based on random variable bandwidth hysteretic current control is proposed.It allows significant reduction in the loss of switching produced by variable switching frequency and accurate compensation of harmonic currents.In order to modulate the accurate bandwidth of hysteresis current control,the approach based on the characteristics of load in the power system generated a bandwidth with random function able to widen the range of switching frequency,while effectively reducing the harmonic distortion rate and the switching loss.Simulation and test results of the shunt active power filter show the performance of the improved control strategy is feasible.关键词
有源电力滤波器/随机带宽/滞环电流跟踪控制/变环宽控制/开关损耗Key words
active power filter (APF)/random-band/hysteretic current tracking control/variable bandwidth control/switching loss引用本文复制引用
肖丽平,童朝南,高润泉..改进的有源电力滤波器滞环电流控制策略[J].电力系统自动化,2014,(12):119-124,135,7.基金项目
国家自然科学基金资助项目(61271370) （61271370）
北京市教委科技面上研究项目(KM201311417002)。This work is supported by National Natural Science Foundation of China (No.61271370) and Science and Technology Development Plan of the Education Committee of Beijing(No.KM201311417002) （KM201311417002）
