永磁同步电机矢量控制中的坐标变换和解耦

Transformation Between Reference Frames and Decoupling of PMSM with Vector Control

针对永磁同步电机矢量控制中的线性解耦要求,用矩阵理论方法求出几种形式的绕组电感矩阵变换时的模态矩阵,导出坐标变换矩阵,从而使定子磁链方程解耦。并给出了功率不变原则下坐标变换时的电磁转矩方程,为深刻理解永磁同步电机矢量控制的坐标变换理论提供了有益的借鉴和启发。

To meet the requirements of linear decoupling of vector control for permanent magnet synchronous motor （PMSM）, this paper gives a matrix method of transformation between reference frames by solving the diagonal matrix of the stator winding inductance matrix, derives the coordinate transformation matrix and the decoupling stator flux equation. The electromagnetic torque equation is presented with the transformation under power constant. It is helpful and inspiring for understanding of the coordinate transformation theory of PMSM vector control.