Dynamic modeling of the SRM drive system from a step load change

In this paper, a dynamic speed loop modeling of a SRM couple DC generator drive system through a perturbation analysis by using a load resistant change is proposed in this paper. Since it is very difficult to decouple torque current command to the nonlinear relationship among generating torque, current and phase inductance of the SRM at different rotor positions. Thus, an alternative scheme is adopted to estimate the dynamic model of the drive system through a step load resistance change. Finally, the performance of the proposed SRM drive system is demonstrated by the some experimental results.