一种整流级为三相四开关的变频器拓扑及控制方法  

The Topology and Control Method of a PWM Converter with Threephase Four-switch Rectifier

作　　者：马海峰[1] 梁翀[1] 陈小贵[1] 姚建凯 冯可良 

机构地区：[1]广西电网公司,南宁530023 [2]广西云涌科技有限公司,南宁530023

出　　处：《广西电力》2013年第4期53-56,共4页Guangxi Electric Power

摘　　要：提出一种整流级为三相四开关的双PWM变频器拓扑,该拓扑具有结构简单、整流级可控的特点,是高性能、低成本变频器的优良解决方案。针对该变频器拓扑,重点研究了变频器整流级的工作原理和控制策略,提出一种新型的整流级电流控制器。逆变器级采用矢量控制技术。MATLAB仿真结果表明,基于该变频器的调速系统具有理想的动态性能和稳态性能,该拓扑结构和控制方法正确、可行。The topology of a dual PWM converter with three-phase four-switch rectifier is proposed, which has characteristics of simple structure and controllable rectifier, and it is an optimal solution to the high performance and low cost converter. Aiming at the topology of the converter, the principle and control strategy of the rectifier are studied and a new type of current controller of the rectifier is designed. The vector control technique is used in the converter. MATLAB simulation results show that the speed control system based on the proposed converter has perfect dynamic and steady performance and the topology and control method is feasible.

关 键 词：三相四开关 双PWM变频器 电流控制器 矢量控制 仿真 

分 类 号：TM46[电气工程—电器]