PWM型谐振直流环逆变器的建模与仿真  

Modeling and simulation of PWM resonant DC-link inverter

作　　者：张双文[1] 张德华[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《机电工程》2008年第2期77-79,103,共4页Journal of Mechanical & Electrical Engineering

基　　金：浙江省自然科学基金资助项目(Y105344)

摘　　要：传统的状态空间平均模型不能对电压、电流纹波大的变换器或存在交流电压、电流的变换器进行建模,给有源箝位谐振直流环节逆变器的建模带来了很大的困难。深入分析了有源箝位谐振直流环节逆变器的工作原理,采用双幅控制的脉宽调制控制方案,提出了一种新的适用于有源箝位谐振直流环节逆变器的建模方法。仿真实验显示,该模型不仅具有良好的输出波形,而且控制精度高,能够实现连续脉宽调制的要求。Modeling the active clamped resonant DC-link inverter is very difficult. It has big voltage and current ripple, and AC voltage and current as well. So the traditional state-space averaged model can not be used to model the converter. The principle of active clamped resonant DC-link inverter was analyzed in detail. A pulse width modulation （PWM） control strategy based on two-amplitude control technology was given. A new modeling method was presented. Simulation and experiment results verify that the proposed scheme realizes the continuous pulse width modulation, and ires good output performance.

关 键 词：谐振直流环节逆变器 双幅控制 脉宽调制 建模 仿真 

分 类 号：TM464[电气工程—电器]