The Research Of Permanent Magnet Synchronous Motor Servo Control System Based On DSP

At present time, AC drive has become the fundamental mode in the drive field. As a result of its outstanding control performance, more and more PMSM(Permanent Magnet Synchronous Motors) have been applied in AC servo systems . The permanent magnet synchronous motor based on DSP is quite significant.In this thesis, first of all, the general development situation of servo system of PMSM is introduced. Then the mathematic model, operation principle of PMSM, and the basic theory of Vector-Control for PMSM are illuminated. With the theory and characteristic of PMSM vector control analyzed and the Field Oriented Control(FOC) strategy employing i_d = 0 chosen, the control scheme of PMSM servo system is established with three close-loop regulators. Meanwhile, the detailed design of the servo control system and some servo control strategies are proposed, based on which, simulation studies are carried out. As a result, we can conclude that the desigen of this servo control system is correct.On the base of principle and simulation analysis, the designing of the whole servo system's software and hardware is completed.