基于单周控制的三相桥式双频逆变器仿真研究  

Simulative study on three phase bridge inverter with dual frequency based on one-cycle control

作　　者：安树怀[1] 王明渝[1] 李翀[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030

出　　处：《电子技术应用》2010年第8期77-80,共4页Application of Electronic Technique

基　　金：重庆市自然科学基金项目(CSTC2007BB3169)

摘　　要：研究了基于双频的三相桥式逆变器拓扑结构,该拓扑由两个传统的三相桥式逆变器级联而成,其中一个工作在低频状态,另一个工作于高频状态,两单元功能相对分离。对高频单元采用单周控制,对低频单元采用电流滞环控制,利用Matlab/Simulink建立了仿真模型。仿真结果表明,该拓扑对降低开关损耗、电流总谐波畸变率、提高系统响应速度具有很好的作用。Three-phase bridge inverter based on dual frequency is researched, which is cascade connected by two traditional three-phase bridge inverter. One works in the low-frequency state, the other one works in the high-frequency state, the functions of those two units are relatively separated. In this paper, one-cycle control is adopted to the high-frequency unit while the low- frequency unit is hysteresis current control. Matlab/Simulink is applied to establish a simulation model. The simulation results show that the typology has a good effect on reducing switching losses and total current harmonic distortion rate and can improve system＇s response speed.

关 键 词：双频逆变器 电机调速 单周控制 电流滞环控制 总谐波畸变率 

分 类 号：TM464[电气工程—电器]