作　　者： ; ; ;

机构地区： 上海理工大学计算机与电气工程学院

出　　处： 《电力系统及其自动化学报》 2009年第1期59-63,共5页

摘　　要： 为了提高五相异步电机调速系统的性能,提出一种新型的五相双级矩阵变换器。该变换器实现了三相输入、五相输出的直接功率变换,通过采用改进的双级拓扑结构,解决了传统矩阵变换器向多相拓展换流复杂度增加的问题。介绍了几种五相双级矩阵变换器的拓扑结构,针对五相双级变换器的空间矢量调制控制策略进行了理论推导,对变换器的控制策略的可行性进行了仿真的实验验证。仿真和实验结果表明:所提出的变换器输入电流和输出电压为正弦,谐波小且输入功率因数可控,并可实现零电压换流。 In order to improve the performance of five-phase induction motor speed adjustment system,a new type of five-phase two-stage matrix converter was proposed. A three-phase to five-phase direct power conversion was implemented for this converter. With an improved two-stage topology of the new converter, the problem of conventional matrix converter which increases complexity of commutation when it is expanded to multi-phase,was resolved. Some types of five-stage matrix converter＇s topologies were presented,and a theoretical space vector derivation on a five-phase two-stage matrix converter was carried out. Simulation and experimental results show that the proposed converter has sine wave input current and output voltage ,low harmonic content ,adjustable power factor ,and zero voltage commutation.

关 键 词： 五相矩阵变换器 双级矩阵变换器 空间矢量 拓扑结构

领　　域： [电气工程]