五电平NPC-HB逆变器快速空间矢量调制算法的研究  

Research on Fast Space Vector Modulation Algorithm for Five-Level NPC-HB Inverter

作　　者：王哲健 郑翔[2] WANG Zhejian;ZHENG Xiang(Industrial Technology Center of Shanghai Dianji University,Shanghai 201306,China;College of Electric Engineering,Shanghai Dianji University,Shanghai 201306,China)

机构地区：[1]上海电机学院工业技术中心,上海201306 [2]上海电机学院电气学院,上海201306

出　　处：《电工技术》2018年第12期93-96,共4页Electric Engineering

基　　金：上海电机学院登峰学科建设项目资助(15DFXK01)

摘　　要：针对多电平空间矢量调制算法在实际应用中复杂、计算量大等缺点,研究了一种快速的空间矢量调制算法,并运用到五电平NPC-HB桥逆变器中,简化了矢量定位及作用时间的求解过程,分析了NPC-HB五电平逆变器的工作原理,考虑到五电平逆变器含有125种开关状态,提出了减小开关频率及损耗的冗余开关状态选择方法。通过实验样机验证了该算法的有效性和可行性。In view of the shortcomings of complexity and huge computation for multilevel space vector modulation algorithm in practical application,a fast space vector modulation algorithm is developed and applied to five-level NPC-HB bridge inverter,to simplify the solution process of vector positioning and acting time.In this paper,the operating principle of NPC-HB five-level inverter is analyzed.Considering that five-level inverter includes 125 on-off states,a redundant onoff state selection method for reducing switching frequency and loss is proposed.The effectiveness and feasibility of the algorithm are verified by an experimental inverter.

关 键 词：多电平变换器 NPC-HB桥逆变器 快速空间矢量脉宽调制 

分 类 号：TM464[电气工程—电器]