一种适用于单相级联H桥型变换器的通用型多电平空间矢量PWM算法  

An Universal Multilevel Space Vector Pulse-Width Modulation Algorithm for Single-Phase Cascaded H-Bridge Converter

作　　者：吴瑕杰[1] 熊成林[1] 冯晓云[1,2] Wu Xiajie;Xiong Chenglin;Feng Xiaoyun(School of Electrical Engineering Southwest Jiaotong University,Chengdu 610031 China;State Key Laboratory of Traction Power Southwest Jiaotong University,Chengdu 610031 China)

机构地区：[1]西南交通大学电气工程学院,成都610031 [2]牵引动力国家重点实验室(西南交通大学),成都610031

出　　处：《电工技术学报》2017年第14期127-136,共10页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51207131;51277153);中央高校基本科研业务费专项资金(2682013ZT19;2682013CX017)资助项目

摘　　要：针对单相级联H桥型变换器,对其工作原理进行详细分析,提出一种适用于单相级联H桥型变换器的通用型多电平空间矢量脉宽调制(SVPWM)算法。该算法将单相多电平SVPWM简化为单相两电平SVPWM,不仅能够降低计算复杂度、具备优良的谐波特性,同时具备良好的扩展性。根据该算法,在单片现场可编程门阵列(FPGA)上实现单相七电平、九电平和十一电平SVPWM。基于DSP+FPGA与RT-LAB半实物实验平台实验结果验证了该算法的正确性与可行性。An algorithm of universal multilevel space vector pulse-width modulation(SVPWM)is proposed for single-phase cascaded H-bridge converter,after analyzing the operation principle ofsingle-phase cascaded H-bridge converter.The proposed algorithm has the advantages of lowcomputational complexity,low total harmonic distortion(THD)and strong scalability.It simplifiessingle-phase multilevel SVPWM to single-phase two-level SVPWM.This paper realizes single-phaseseven-level,nine-level and eleven-level SVPWM on a single field programmable gate array(FPGA).Experimental results based on the hardware in the loop system with DSP+FPGA have verified theproposed algorithm.

关 键 词：单相级联H桥 空间矢量脉宽调制 现场可编程门阵列 

分 类 号：TM46[电气工程—电器]