三电平有源电力滤波器谐波电流及中点电位平衡控制  

Control of Harmonic Current and Neutral-Point Potential Balance for Three-Level Active Power Filter

作　　者：周京华[1] 柴小丰 祝天岳 陈亚爱[2] 章小卫[1] 

机构地区：[1]变频技术北京市工程研究中心(北方工业大学),北京市石景山区100144 [2]北京电动车辆协同创新中心(北京理工大学),北京市海淀区100081

出　　处：《电网技术》2017年第6期2012-2019,共8页Power System Technology

基　　金：北京市自然科学基金项目(3142008)~~

摘　　要：针对三电平有源电力滤波器,在建立其小信号数学模型的基础上,提出一种考虑输出补偿电流的改进型预测电流跟踪控制策略。同时,为控制三电平直流侧中点电位不平衡,提出一种基于平衡因子的中点电位平衡控制策略。为验证所提控制策略的正确性,搭建了三电平有源电力滤波器实验平台,实验结果验证了改进型预测电流和中点电位平衡控制策略的有效性与可行性。An improved predictive current tracking control strategy based on small-signal mathematical model of three-level active power filter is proposed considering output compensation current. Neutral-point potential balance control strategy based on balance factor is also proposed to control neutral-point potential balance on three-level DC side. In order to verify validity of the proposed control strategies, a test platform for three-level active power filter is set up. Test results verify effectiveness and feasibility of the control strategies of improved predictive current and neutral-point potential balance.

关 键 词：三电平 有源电力滤波器 小信号数学模型 预测电流 中点电位平衡 

分 类 号：TM46[电气工程—电器]