| Abstract |
In this paper, we present a numerical method, which combines the electromagnetic model of the SRM and that of the circuit supply. In this approach, the finite elements method is used to determine the characteristic of the machine, considering the non-linearity of the material and that of the structure of the machine. The machine parameters are used to develop and assess two SRM models. The first model uses a linear electromagnetic characteristic, whereas the second takes into account the saturation effect. The simulation results show that the non-linear model is more accurate for torquen ripple assesment. In the non-linear model, the average torque and its harmonic content are affected by the saturation level. The method described in this paper could be used to design a high performance SRM drive, prior to any further optimisation. |
