基于规则采样的空间电压矢量PWM随机控制

The random control of space voltage vector PWM based on regular sampling

提出一种基于规则采样的空间电压矢量PWM随机控制方法 ,可运用于三相电压型逆变器的控制 .介绍了在低开关损耗模式下的一种快速SVPWM算法 ,通过DSP数字信号处理器随机改变每个开关周期中零电压矢量的位置 ,实现 2种低开关损耗模式之间的随机转换 ,使逆变器输出谐波均匀分布 .

A random control of space voltage vector PWM based on regular sampling for three-phase voltage source inverter is described.This paper illustrates a fast algorithm of SVPWM in the less switching loss mode. It uses DSP numerical controller to change the positions of zero voltage vectors randomly, and then two less switching loss modes are selected randomly, which make harmonic that come from inverter distribute evenly.