关键词: 三相全桥逆变器, 滑模控制, 电压空间矢量脉宽调制

Abstract:

In terms of the poor dynamic performance and sensitivity to load change in the output voltage of threephase full bridge inverter, a output voltage control scheme based on sliding mode control is proposed. In order to make the circuit operate at different carrier frequencies, taking advantage of the three phase inverter topology structure of voltage space vector pulse width modulation (SVPWM), the simulation shows that the scheme makes the output voltage has a smaller total harmonic distortion, good steady performance and strong load adaptability.

Key words: three phase full bridge inverter, sliding mode control, SVPWM