基于电压空间矢量的共模电压消除方法的研究

对多电平逆变器电压空间矢量的特点和规律进行了分析,对各个电压空间矢量以及各种冗余开关状态进行研究,寻找开关状态与共模电压的内在联系,提出了一种基于空间矢量的有效消除多电平逆变器共模电压的方法.最后仿真与实验结果也证明了所提出的抑制共模电压方法的正确性,并且该方法具有通用性,可以很容易应用到更高的奇数电平的逆变器中.

Method of Elimination Scheme to Common-mode Voltage Based on Voltage Space Vector

Based on the analysis of the characteristics and rules of the voltage space vector of multilevel inverter,each voltage space vector and redundancy states was discussed,the relationship between redundancy switching states and common-mode voltage was found,and the method of mitigation and elimination common-mode voltage was presented.The simulation and experimental results of the proposed technique verify the preciseness and practicality of the theory.It is easy to apply the proposed method to higher odd leve...