摘要：基于永磁同步电机的数学模型，以转子磁场定向id=0控制和空间矢量脉宽调制相结合的方法进行控制。针对速度伺服，采用改进型指数趋近率滑模变结构控制，在Matlab/Simulink环境中进行了建模与仿真。仿真结果表明与一般指数趋近率滑模控制相比，改进型指数趋近率滑模变结构控制器控制永磁同步电机，超调量小、速度响应快、抖振小、对各种外界干扰也得到了很好的抑制。最后，在TMS320F2812 DSP开发板硬件实验平台上，对永磁同步电机的速度控制进行了实验验证。
关键词：永磁同步电机；滑模控制；速度伺服控制；TMS320F2812 DSP

Abstract: Based on the mathematical model of permanent magnet synchronous motor, rotor flux oriented vector control id=0 and the phase space vector pulse width modulation were introduced. Improvement exponential approach law sliding mode for speed servo system were modeled in the Matlab/Simulink software. The simulation illustrates that improvement exponential approach law sliding mode variable structure controller makes PMSM less overshoot, quick velocity response less chattering and has good depression of many disturbances than traditional exponential approach law. Finally, a TMS320F2812 digital signal processor (DSP) was used to set a control system of PMSM which was verified in this paper.
Key words:  PMSM； sliding mode control； speed servo system； TMS320F2812 DSP