三相四线制APF的改进三电平SVPWM算法研究  

Research on Improved Three level SVPWM Algorithm of Three phase Four wire APF

作　　者：刘霜 房占凯 苟家喜 赖强 陈果 杨自清 LIU Shuang;FANG Zhankai;GOU Jiaxi;LAI Qiang;CHEN Guo;YANG Ziqing(Technical Center of Chongqing Chuanyi Automation Co.,Ltd.,Chongqing 400000,China;Chongqing Chuanyi Automation Co.,Ltd.,Electrical Complete Equipment Branch,Chongqing 400000,China)

机构地区：[1]重庆川仪自动化股份有限公司技术中心,重庆400000 [2]重庆川仪自动化股份有限公司电气成套分公司,重庆400000

出　　处：《自动化与仪器仪表》2023年第10期260-264,268,共6页Automation & Instrumentation

摘　　要：三相四线制有源电力滤波器(Active Power Filter,APF)采用传统的三电平电压空间矢量脉宽调制算法没有考虑零轴电压分量,影响有源电力滤波器的谐波补偿效果。文中提出一种改进电压空间矢量脉宽调制算法,基于对零轴电压分量的分析,在传统电压空间矢量脉宽调制算法基础上调整正负小矢量作用时间,同时结合直流侧均压控制,从而改善三相四线制中点钳位型三电平三桥臂有源电力滤波器的谐波补偿效果。并在Matlab Simulink仿真验证该改进算法的正确性和可行性。The three-phase four wire active power filter (APF) uses the traditional three-level voltage space vector pulse width modulation algorithm without considering the zero sequence voltage, which affects the harmonic compensation effect of the active power filter. In this paper, an improved voltage space vector pulse width modulation algorithm is proposed. Based on the analysis of zero sequence voltage, the positive and negative small vectors’ action time is adjusted on the basis of the traditional voltage space vector pulse width modulation algorithm. At the same time, the DC side voltage sharing control is combined to improve the harmonic compensation effect of three-phase four wire neutral point clamped three-level three leg active power filter. The correctness and feasibility of the improved algorithm are verified by simulation in Matlab Simulink.

关 键 词：三电平 空间矢量脉宽调制 有源电力滤波器 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置] TM46[自动化与计算机技术—控制科学与工程]