Mdeling and Simulation of Vector Control System of Alternating Current Motor Based on Matlab

Mdeling and Simulation of Vector Control System of Alternating Current Motor Based on Matlab

Based on analyzing the mathematical model of asynchronousmotor and the principle of vector control, the
modules for the alternating current asynchronous motor, the inverter, vector control, coordinate transformation, the
flux observer, the speed regulation module and the current hysteresis PWM regulatorwere built respectively according to the modularization idea by using the SimPowerSystems modules in Matlab/Simulink. The function modules were then integrated, which composed of the simulationmodel for the vector control system of the rotormagnetic field oriented asynchronousmotor. The simulation results showed that the system had fast dynamic response to rotation speed, small steady state error and strong ability of anti load disturbance, which verified the feasibility and effectiveness of
the vector control for the alternating currentmotor.