基于坐标变换法的三电平SVPWM算法的三个矢量作用时间的计算方法

The Calculation Method of the Three Vector Action Time of Three Level SVPWM Algorithm Based on the Coordinate Transformation Method

提出了基于坐标变换计算九段虚拟矢量鞍形波调制三电平SVPWM的三个矢量作用时间的算法,给出了5个小扇区的坐标变换方法和计算过程,得出了该方法的工程实用性很高的结论;利用VC++6.0的DLL动态链接库与PSIM结合的方法进行了仿真,并将该算法应用于有源电力滤波器中,成功地实现了由理论到工程实践的过渡。

Based on coordinate transformation algorithm, this paper presents a calculation of three vector time of three level SVPWM by nine sections of virtual vector saddle wave modulation. It gives details on the coordinate transformation method and the calculation process of 5 small sectors. The conclusion is the engineering practicability of this method is very high; Simulated by using the method of combining the DLL dynamic link lib and PSIM of VC＋＋6.0, the algorithm is successfully applied in calculation of active power filter, and achieve a successful transition from theory to engineering practice.