基于两电平的4桥臂SAPF空间矢量调制算法的研究  

Space Vector Modulation Algorithm Based on Two-level for Four-leg Shunt Active Power Filter

作　　者：刘建坤[1,2] 侯圣语[1,2] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008 [2]江苏省电力传动与自动控制工程中心,江苏徐州221008

出　　处：《电气传动》2013年第5期47-50,共4页Electric Drive

摘　　要：4桥臂有源电力滤波器的作用越来越重要,但是传统的4桥臂空间矢量调制策略在三维空间内,算法复杂,不易于实现。研究了电压空间矢量调制算法与载波SPWM调制算法,分析出两者之间的本质联系,在此基础上从本质上对4桥臂等效SVPWM调制算法进行详尽的分析研究,提出一种基于三角载波比较的等效SVP-WM调制算法。最终得到固定的零序分量表达式,避免了3D-SVM中复杂算法和繁琐的计算过程,更加易于实现。仿真、实验结果验证了该调制算法的优越性。Fourleg active power fiher（APF） applications is increasingly important, but the traditional fourleg space vector modulation strategy in the threedimensional space is not easy to achieve.The voltage space vector modulation algorithm and carrier SPWM modulation algorithm was studied, and analyzed the nature of ties between them.On this basis, researched on the algorithm that equivalent to the SVPWM modulation essentially. Proposed a algorithm that triangular carrier equivalent to the SVPWM. Got the zero sequence component expression finally. Avoid complex algorithms and tedious calculation process of the 3DSVM. Simulation and experimental results verify the superiority of the modulation algorithm.

关 键 词：零序注入法 三维空间矢量调制 载波调制 4桥臂逆变器 

分 类 号：TM921[电气工程—电力电子与电力传动]