针对三电平VIENNA整流器存在中点电位波动、控制复杂的问题,将直流侧中点电压偏差引入到电压定向电流解耦的双环控制中,通过调整矢量作用时间来达到直流侧中点电压平衡控制,并探究了一种三电平空间矢量平面简化到两电平矢量平面的简化空间矢量脉宽调制算法。最后通过MATLAB/Simulink搭建VIENNA整流器矢量控制仿真模型,通过仿真分析证实了该控制策略简单可行,且具有良好的动态性能和静态性能。

In order to solve the problems of midpoint voltage fluctuation, the complicated control problem of the traditional three level VIENNA rectifier, the DC-link midpoint voltage error was introduced to the dual closed-loop control and the DC-link midpoint voltage balance control was achieved by adapting vector action time. Based on the platform of MATLAB/Simulink VIENNA rectifier vector control simulation was built. The simulation results proved that the control strategy was simple and feasible, and it had good dynamic performance and static performance.

TM 301.2

国家高技术研究发展计划(863计划)(2011AA11A247);上海市科委重点项目(14DZ1206300);上海市经信委重大技术装备项目(ZB-ZBYZ-02-14-0825)