Study On The Nonlinear Control Theory Of SRM Based On Inverse Theory

In this paper, a flux model including exponential term and an inductor model which has satisfied accuracy have been analysed, and some limitation of them has discussed. Some conditions of rough choosing fitting analytical model have also been discussed. The inductor model is used to model the SRM which this paper used, and by using it, an analytical model and a Simulink model of SRM are established.Based on the established model of SRM, a kind of nonlinear control strategy is discussed. The inverse system theory and linear control theory are used in this control strategy. Firstly, the inverse system method is used to linearize the multiple input and nonlinear SRM model. Secondly, a state observer is used to get the state of Pseudo-linear system and the internal model control method is used to guarantee the robust of SRD. According to simulation, the presented control results are better than nomal PI method. An experimentation based on the control strategy is presented in the end.