基于SVPWM共模电压抑制方法的研究与仿真  

Method research and simulation of suppressing the common-mode voltage based on SVPWM

作　　者：李银玲[1] 唐允宝[1] 刘鹏[1] 

机构地区：[1]华东交通大学电气与电子工程学院,江西南昌330013

出　　处：《电气传动自动化》2010年第4期32-35,共4页Electric Drive Automation

摘　　要：三电平逆变器是当前电力电子技术的研究热点之一,并广泛应用在中压大容量变频器领域,但同时也产生有害的共模电压。为减少共模电压的负面影响,采用降低和消除共模电压的SVM控制策略,并与传统的SVM比较。通过Matlab/Simulink对算法进行仿真,比较结果表明,两种控制策略都对共模电压起到抑制作用,其中后一种策略几乎可以达到完全消除共模电压效果。Three-level inverters are widely used in medium-voltage high -power domain. However, they have produced the harmful common-mode voltage（CMV）. In order to reduce the negative effects of CMV, the reducing and eliminating CMV strategies are relatively used and compared with the traditional SVM strategy. The algorithms are simulated by Matlab/Simulink. The comparison results show that the latter two control strategies are playing an important part on suppressing CMV, and they can completely eliminate the CMV.

关 键 词：SVPWM 共模电压抑制 仿真 

分 类 号：TN712[电子电信—电路与系统]