Modeling and Simulation for Fifteen-phase Asynchronous Motor of Ship Electric Propulsion

A fifteen-phase asynchronous motor used for ship electric propulsion is studied. Firstly, the mathematical model of the fifteen-phase asynchronous motor is deduced and the simulation model is established. Then on the basis of the fifteen-phase asynchronous motor, vector control strategy according to the rotor flux oriented is designed. A fuzzy PID controller combining fuzzy control theory with traditional PID controller is applied to the fifteen-phase asynchronous motor speed control system. Finally combined with the MATLAB / Simulink software, simulation results show that fuzzy PID controller is significantly better than the traditional PID controller, with no overshoot, fast response and other characteristics. The feasibility of the control method used is verified.