Study of Levitation Control System for the Vehicle/Guideway Resonance Test Bench of the Middle- and Low-Speed Maglev Train

For maglev trains, the resonance between the vehicle and the guideway has been one of the key problems that have been studied. In order to systematically study the problem, a new type of the vehicle/guideway resonance test bench of the middle- and low-speed maglev train was developed. The test bench consists of a single levitation frame structure, a guideway and a vibration system, and a levitation control system. Due to the changes in guideway stiffness, basic beam characteristics, and the levitation control system characteristics, experiments show that to achieve favorable levitation stability the parameters of the levitation control system must be optimized with the vehicle and guideway characteristics. The effects of levitation control stiffness, and damping and filter parameters on the levitation control performance were studied to further optimize the performance of levitation systems. A vehicle/guideway resonance test was conducted combined with guideway characteristics, levitation frame structure characteristics, and vibration excitations.