PID Control Based On Fuzzy Adaptive Servo Control System For AC PM

The development of Electric Power and Electronic technology,Micro Electric technology,special integrated chips and the application of Motor control theory promoted the application of motor control in practice.The AC frequency and speed control which has excellent performance of speed regulation and performance of replacehigh efficiency saving energy generally replaces DC system of speed control .Motor controller is gradually improving into Digital controller,optimal capacity and simple structure.Servo system combines the electrical motor theories,the modern power electronics techniques,sensor techniques,microproces- sor techniques and advanced control theories. As the representative of modem electrical motors, permanent magnet synchronous motor(PMSM) is ideal for advanced servo systems for its potentials of high efficiency, high torque to current ratio, and low inertia. Thus, permanent magnet synchronous motor is widely regarded in servo control field.Based on extensive literature,it roundly summaries and introduces the current trend of development and the development of various control methods of permanent magnet synchronous motor servo system. It also introduces the practical problems is solved in this paper. It further strengthen significance of the development of permanent magnet synchronous motor servo system.