本文着重研究了交流永磁同步电动机的伺服控制，在交流感应电动机矢量控制和直流无刷电动机控制基础上，总结并提出了一种新的无电流环交流永磁同步电动机矢量控制思路、位置控制模型和算法及其软制动控制方式，利用TI推出的DSP芯片TMS320LF24O7A，成功地实现了对小功率交流永磁同步电动机的伺服控制，包括速度控制和位置控制。-This paper focuses on the exchange of permanent magnet synchronous motor servo control, summarized and presented in vector control of AC induction motor and DC brushless motor control based on a new current loop AC permanent magnet synchronous motor vector control ideas, position control model and algorithm, and its soft braking control mode, using TI' s DSP chip TMS320LF24O7A successfully achieve a small power AC permanent magnet synchronous motor servo control, speed control and position control.