Research And Design On PMSM AC Servo Control System

Servo System is a sort of advanced control systems, whose output can respond the external input rapidly and accurately.Due to the great development of the microprocessor technique, modern power electronic technique, control technique and the manufacture technics for the permanent magnet material of motors.higher control performance of servo products with lower cost is being a subject of great interest worldwide. Digital controlled AC servo systems, based on Permanent Magnet Synchronous Motors (PMSM) as power converters with advanced control strategies, implemented in Digital Signal Processor (DSP), will be a trend.In this thesis, a set of practical PMSM speed-adjustment system based on DSP controller is developed, especially for the inverter's, The improved SVPWM pattern was realized in order to decrease the motors torque ripple and enhance the system's high speed and accuracy. basing on which a relevant method of control strategy is also advanced. analyzing the principle in detail, a software system for putting the method in practice is further developed.At last, the designed controller is simulated under MATLAB/SIMULINK, and the results are gived.