全桥式逆变电源的仿真研究  

Simulation Study of Full-bridge Inverter

作　　者：李滨[1] 王述洋[1] 盖志武[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《森林工程》2007年第1期47-49,55,共4页Forest Engineering

基　　金：哈尔滨市重点科技公关项目(9811211077)

摘　　要：建立采用常规脉宽调制控制方式和移相脉宽调制控制方式的全桥弧焊逆变电源完整的非线性的Matlab 仿真模型。仿真试验分析弧焊逆变电源工作过程及其动态特性,弧焊逆变电源输入电压、电流及其频谱分析、总谐波畸变率(THD,T0tal harmonic distortion),给出逆变电源焊接时熔滴短路过渡情况下逆变电源中典型电量动态过程的图形化表示。Nonlinear simulation models of normal pulse width modulated full-bridge welding inverter and phase-shifting-control pulse width modulated full-bridge welding inverter were set up by using Matlab. The simulation analyzed the working process and dynamic characteristics of welding inverter, as well as the input voltage, input current, spectrum and THD （Total harmonic distortion） of welding inverter. The graph of dynamic processes of the inverter＇s typical electric quantity was obtained when short circuit occurred caused by dropping melted welding rod.

关 键 词：全桥逆变电源 仿真 脉宽调制 

分 类 号：TN702[电子电信—电路与系统]