两种典型的三相SPWM逆变器电路比较  

Comparison Research on Two Typical Three-Phase SPWM Inverters

作　　者：戴珂[1] 王舰威 陈睿[1] 陈晶晶[1] 康勇[1] 

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074 [2]武汉船舶通信研究所,武汉430074

出　　处：《电工技术学报》2012年第2期82-88,108,共8页Transactions of China Electrotechnical Society

基　　金：国家科技支撑计划(2007BAA12B03)

摘　　要：将三相桥逆变器等效变换成形似三个三角形?联结的单相全桥组合而成的三相逆变器,等效而成的单相全桥互相共用一个桥臂。进而在变换后的拓扑基础上提出了一种新的三相桥逆变器数学模型,比较三相桥拓扑和三个三角形联结的单相全桥通过组合而成的三相逆变器拓扑在控制方法、功率容量和输出特性的区别,界定两种三相逆变器的应用领域。This paper takes a equivalent transformation from three-phase bridge inverter to a new topology looks like three single-phase full-bridge inverters triangle connected,but the transformed single-phase full-bridge inverters share one arm with another.Then build a new mathematical model base on the new topology.Compare three-phase bridge inverter with three single-phase full-bridge inverters triangle connected on control scheme,power capacity and output characteristics.Application fields of two inverters are defined.

关 键 词：三相桥逆变器 单相全桥逆变器 正弦脉宽调制 数学模型 级联 

分 类 号：TM464[电气工程—电器]