【摘要】 介绍了一种线电压脉宽调制技术(LVPWM),分析了其调制原理。与传统的SPWM技术不同,这种新型的脉宽调制技术是以线电压为参考波形的。讨论了采用LVPWM方法三相桥式电压型逆变器的电压输出能力。建立了仿真模型对LVPWM进行了仿真研究。研究表明,从线电压出发控制逆变器是可行的。仿真结果证明了这种脉宽调制方法的有效性。更多还原

【Abstract】 This paper describes a new line voltage pulse width modulation(LVPWM) principle and analyzes the modulation theory.This new method is different from the conventional SPWM.It looks on three line-to-line voltages as the reference waveforms.Output capacity of the three-phase bridge voltage source inverter is discussed.The simulation model is constructed.The simulation of LVPWM is presented.Research results demonstrate that it is feasible to control the inverter basing on line-to-line voltage.The simulation results show this method is effective.更多还原