Research On Predictive Functional Control For Permanent Magnet Synchronous Motor

With the widely use of Permanent Magnet Synchronous Motor (PMSM) in the servo control systems, the study of PMSM has great real meaning and scientific value. PMSM driven by triphase sinusoidal current is the object of this study, based on evaluating PMSM for organization and characteristic, its mathematics model is established in several coordinates. In view of the inherent strong coupling, nonlinear and time-varying parameters of PMSM as well as the shortcoming of the traditional control methods depend on accurate motor models parameters, on the basis of research and analysis of predictive functional control and vector control, the predictive functional control and vector control combination of AC PMSM servo-system has been designed.In the environment of MATLAB/SIMULINK, it has finished the simulation research of predictive functional control, given the design method of controller and carried out the modeling and simulation of the designed system. Compared with the traditional PI control system, the simulation results indicate that the predictive functional control and vector control combination of AC PMSM servo-system not only has a good dynamic and static performance, but also overcomes the parameters change, anti-interference, rapid tracking and high control precision, which improves the overall performance of the system.Finally, the hardware and software are designed for AC PMSM servo-system which based on the digital signal processor (TMS320F2812 DSP), the programme of SVPWM is debugged in the environment of CCS, as well as it has completed the debugging and experimental research of hardware and software of IR2130 drive circuit, the experimental waveforms have proved the feasible of design.