电力电子负载逆变并网电流谐波抑制研究  

Research on suppression of current harmonics in grid-connected inverter of power electronic load

作　　者：汪通[1] 麻焕成 石萍萍 林晓焕[1] 郭丹蕊 

机构地区：[1]西安工程大学电子信息学院,陕西西安710048 [2]驻马店农业学校机电工程系,河南驻马店463002

出　　处：《电子技术应用》2016年第2期129-132,共4页Application of Electronic Technique

摘　　要：为了抑制单相电力电子负载逆变侧并网电流畸变产生的谐波,在带通调节器用于电流环的基础之上,提出采用带通调节器结合扰动观测器的控制策略。该方法为经典控制与现代控制的结合,有效解决电流环前向通道的扰动对并网输出电流的干扰。首先介绍电流环带通调节器的研究背景,其次论述扰动观测器方法的基本原理及其优缺点,最后设计基于扰动观测器方法的并网电流环(Band Pass,BP)调节器控制方案以及电压环的设计。To suppress current harmonics in single- phase grid- connected inverter, a control strategy of band- pass regulator and disturbance observer is proposed on the basis of band- pass regulator used in the current loop. The method is a combination of classic and modern control, by which the interference of grid- connected output current caused by disturbance from forward channel in current loop. The background of band- pass regulator is first introduced. Then the basic principle and its advantages and disad-vantages of the disturbance observer method are discussed. Finally the control scheme of BP regulator based on disturbance observer method in the current loop of the grid- connected inverter and the design of voltage loop are given.

关 键 词：电力电子负载 带通调节器 扰动观测器 并网逆变器 谐波抑制 

分 类 号：TM721[电气工程—电力系统及自动化]