对称六相PMSM与 三相PMSM串联系统的数学建模

Mathematics Model of Symmetrical Six-Phase and Three-Phase PMSM Series-Connected System

摘要:

针对表贴型转子结构的对称六相 PMSM与三相 PMSM串联系统,建立了自然坐标系下的数学模型,并利用解耦变换矩阵将电压矢量方程变换到 3个相互正交的 αβ -xy -o1o2子空间中去,分别进行了同步旋转变换,推导出两相同步旋转坐标系下的数学模型；最后,利用 id =0的矢量控制策略进行了变速解耦运行的仿真验证。

Abstract:

The mathematics models of surface rotor symmetrical six-phase and three-phase PMSM series-connected sys.tem under natural coordinate were setup. The voltage vector equations were converted to three orthogonal αβ -xy -o1o2 subspaces each other by decouple matrix. Then the mathematics model of synchronized rotating coordinate were deduced.The simulation results of variable speed with id =0 vector control strategy were proved the decouple operation.