| Firstly, this paper summarizes and analyzes the evolution, the present, and the prospective of both servo systems and AC servo system. Secondly, it makes a introduction on the structure and control strategies of PMSM speed control system, and a PMSM speed control method base on SPWM is given; A set of practical PMSM speed control system based on DSP controller is developed, and finished the software system design. Finally, experiments have been done on this practical system. And according to the analysis of these experimental results, some conclusions drawn from this paper have been proved. |
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