Co-Simulation of a Surface-Mounted Permanent Magnet Synchronous Motor Drive using Finite Element Method

In this paper, a co-simulation of the surface permanent magnet synchronous motor drive is presented. The finite element model of a surface PMSM is designed in the FLUX 2D finite element software. Then, the direct torque control approach of the PMSM motor is designed in MATLAB/SIMULINK software. The finite element model of the surface PMSM is transferred to the control system within an interface block and replaced with the mathematical model of the motor. After tuning the PI ratios manually (trial and error), the motor drive is analyzed in no-load condition. The simulation results prove the accuracy of the drive model and the finite element model of the motor, which makes it possible to study the electrical machine’s behavior in a more realistic manner, considering all motor’s non-linear characteristics. Finally, the post-processing results of the co-simulation is mentioned including the iso values of various face regions of the motor. The co-simulation technique can be applied before assembling the actual drive system, in order to validate the motor design and its control system.