一种改进的三电平逆变器空间电压矢量PWM控制技术

A improved SVPWM technique for three-level inverter

根据三电平逆变器空间电压矢量PWM控制原理 ,针对过调制问题 ,提出了一种改进的空间电压矢量PWM控制技术 ,并推导了三电平逆变器空间电压矢量在各个过调制区域内的等效作用时间算法 .仿真实验结果表明该方法在过调制时能够保证线性调制关系 ,有效抑制谐波 。

To solve the problem of over modulation, this paper proposes a improved technique based on the principle of three level inverter space voltage vector pulse width modulation and derives the corresponding time algorithm of three level inverter space voltage vector in the over modulation sectors. Simulation experimental results show that the method can restrain the content of harmonious and increase voltage utilization.