本文以三相正弦波驱动的永磁同步电机(PMSM)为研究对象，在深入分析其内在电磁约束关系的基础上，给出了不同坐标系下的运动方程，根据其数学模型，确定了电动车用电机在旋转坐标系下的矢量控制方案。控制系统为电流环和速度环的双闭环系统-In this paper, three-phase sine-wave-driven permanent magnet synchronous motor (PMSM) for the study, in-depth analysis of its intrinsic relationship between electromagnetic bound on the basis of the different coordinate system is given under the equation of motion, in accordance with its mathematical model to determine the electrical motor vehicle in the rotating coordinate system of vector control programs. Control system for the current loop and speed loop dual closed-loop system