空间矢量调速方法研究

Study of Speed's Adjustment on Space Vector

介绍了一种电压空间矢量PWM控制的方法。SVPWM能有效的减少输出电流失真及切换损耗,它与目前广泛使用的正弦式PWM比较,可以显著的增加有效输出电压及降低谐波含量。该方法输出电压较一般SPWM逆变器提高15%,每次状态切换只涉及一个元件,开关损耗降低,且模型简单,适用于各种PWM调速装置。

This paper develops a method of voltage space vector PWM control. The SVPWM can effectively lessen the distortion of output current and switch loss. Compared with sine PWM used widely at present, it can prominently increase effective output voltage and reduce harmonics. Output voltage enhances 15 percent compared with common SPWM inverter used this method in which each state switching involves a component, switching loss decreases and model is brief. This method is applied a variety of PWM timing equipment.