Modeling, simulation and experiment of switched reluctance linear launcher

This paper presents a nonlinear simulation models of switched reluctance linear launcher drive based on MATLAB Platform. The proposed model consists of a three-phase 6/4 structure simple side switched reluctance linear motor, a three-phase asymmetric bridge power converter and a closed-loop velocity controller. It is integrated with the magnetization curves of Switched Reluctance linear motor obtained by the two dimensions finite element electromagnetic field calculation, the nonlinear electrical network model of the power converter and the excitation/commutation/velocity control algorithms. There are mover relative position calculation module , controller module, power converter module, phase winding modules, and velocity calculation module. The simulated phase current waveforms and velocity curves agree well with the tested phase current waveforms and velocity curves experimentally. It is shown that the proposed nonlinear simulation models of the three-phase 6/4 structure Switched Reluctance linear launcher system is valid.