多电平逆变器SVPWM算法研究与实现

Study and Realization of simplified SVPWM Algorithm based on Multilevel Inverter

分析了多电平逆变器SVPWM的简单算法,该算法易于确定参考矢量的位置及其作用时间,结合相应的开关序列产生逆变器的开关信号。以中点箝位式三电平逆变器为例,介绍了算法的实现,其不仅易于扩展到n电平逆变器中,也适用于级联型逆变器。给出了三电平逆变器的实验结果。

This paper analyzes a simple space vector pulse width modulation （SV PWM ） algorithm for a multltevel inverter. The scheme can easily determine the location of the reference vector and calculate the on-times.It uses the corresponding switching sequence to generate gating signals for the inverter.A three-level neutral point clamped inverter is used to explain the scheme.The scheme can be easily extended to a n-level inverter.It is applicable to the cascaded inverter as well.Experimental results of three-level inverter are provided.