并联型有源滤波器自适应模糊控制方法研究  

Adaptive-fuzzy Current Control Method for Shunt Active Power Filter

作　　者：汪玉凤[1] 张东宇[1] 苏佰超 

机构地区：[1]辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛125105 [2]国网辽宁省电力有限公司阜新供电公司,辽宁阜新123000

出　　处：《电气传动》2014年第11期33-37,共5页Electric Drive

基　　金：国家自然科学基金项目(53107076)

摘　　要：针对并联型有源滤波器滞环电流控制方法控制精度与开关损耗易受到滞环宽度的影响的问题,提出了一种自适应模糊滞环电流控制方法。首先通过模糊控制和锁相环技术得到参考电流,然后使用自适应模糊控制器产生指令电流。该控制方法使滞环带宽随着逆变器参数的变化自动调整,使其开关频率保持稳定,从而有效减少开关损耗,显著提高了有源滤波器的补偿性能。仿真和实验结果验证了所提方法的正确性和可行性。To overcome the shortcoming of hysteresis current control method of shunt active power filter,whichinclude accuracy and switching losses are vulnerable to the impact of the hysteresis width,a novel adaptive-fuzzyhysteresis current controller for shunt active power filter was proposed. The reference current was generated by phase-locked loop technology and fuzzy controller,the compensation instruction currents was presented by adaptive-fuzzycontroller. This control method makes the hysteresis loop bandwidth adjusted to changes of the inverter parametersautomatically,which maintains the stability of the switching frequency,so as to effectively reduce the switching loss,and improved the compensation performance of the active power filter significantly. Simulation and experimentalresults verify the correctness and feasibility of the proposed method.

关 键 词：有源滤波器 自适应模糊控制 滞环电流控制 电能质量 

分 类 号：TM713[电气工程—电力系统及自动化]