一种简化空间矢量调制方法在风电变流器中的应用  

A Simplified SVM Method Applied in Wind Power Converters

作　　者：胡书举[1] 

机构地区：[1]中国科学院电工研究所,北京100190

出　　处：《大功率变流技术》2009年第4期19-25,共7页HIGH POWER CONVERTER TECHNOLOGY

基　　金：863探索导向项目(2007AA05Z421);中科院电工研究所所长基金(0710141CS1)

摘　　要：根据PWM变流器开关函数及伏秒平衡原则,采用一种开关函数面积矢量概念对常规SVM(空间矢量调制)进行简化,并说明了简化SVM在DSP中的载波实现方法。通过仿真及在风电变流器中的应用实验验证了该简化SVM载波实现方法的正确性。仿真及实验结果表明,采用简化SVM的载波实现方法可以获得与常规SVM同样的调制效果,但是可以简化计算流程,便于SVM在多电平变流器中的推广应用。Based on switch function and voltage-second balance principle of PWM converter, a concept of switch function area vector is used to simplify the conventional space vector modulation （SVM）, and carrier implementation method of the simplified SVM is explained. The correctness of the simplified SVM carrier implementation method is verified by simulation and experiment with the method applied to wind power converter. The simulation and experimental results show that the simplified SVM carrier implementation method may has the same modulation effect as the conventional one, but simplify the calculation process, and facilitate the SVM used for multi-level converters.

关 键 词：风电变流器 简化空间矢量调制 开关函数面积矢量 载波实现方法 DSP 

分 类 号：TM310[电气工程—电机]