三电平SVPWM逆变器中点电压平衡的研究

Study on neutral-point balancing for three-level SVPWM inverter

文章简要分析了中点钳位式 (NPC)三电平逆变器的基本原理 ,提出了一种平衡中点电位的新方法 ,并运用DSP芯片TMS32 0F2 4 0 7实现了全数字化控制系统 ,最后通过仿真验证了该方案的正确性。

This paper introduces the basic theory of three-level NPC inverter and raises a new balancing method. The working principle and control scheme of the system is also proposed .