Current Control Strategy of High-Speed Maglev Train Based on Sliding Mode

The long-stator linear synchronous motor used for the high-speed maglev train is a multi-variable, non-linear, and strongly coupled system working in double feeding mode. Traditional proportional integral control strategies are more sensitive to parameter perturbations. Therefore, this paper proposes a current control strategy based on integral sliding mode to improve current dynamic performance and robustness. The simulation results show that this strategy can improve the robustness of current control and the dynamic performance of current in the process of stator step change when the parameters are perturbed.