DSP based digital control system implementation of permanent magnet synchronous motor

The permanent magnet synchronous motor (PMSM) with high efficiency, high power factor, high control accuracy, high torque inertia, larger speed range and good torque smoothness, and a series of advantages, is playing a very important role in AC servo system. Based on vector control, a PI controller is designed to improve the control performance of permanent magnet synchronous motor. In order to realize the designed controller, a controller board based on TMS320F2812 DSP and a drive board is designed, the software is developed in C language on CCS_3.3 and the experimental results are debugged on the hardware platforms with software systems. The experimental results shows that the steady-state accuracy of the controller designed is higher and the overshoot is very small, which demonstrate the effectiveness of the controller designed in this paper and lay a software and hardware foundation for further study.