Flexible Control Method for Maglev Vehicle System Under Irregularity Excitation

Abstract:

In this paper, a flexible levitation control method for maglev vehicle-guideway system is proposed based on full-state feedback theory and is compared with traditional stiff control method. The relationship between track stiffness and maglev system stability is investigated. Then, the responses of the system under different irregularity excitations are tested. Results show that the traditional stiff control method without considering the movement of track requires high track stiffness. The system is very sensitive to irregularity,which results in oscillation and instability. However, the flexible control method with considering the movement of track has relatively low requirement for track stiffness and can be stable under different irregularity inputs.

Key words:maglev vehicle;track;irregularity input;suspension control