Parameter Impact Analysis and Vibration Control for High Speed Maglev Train-Track Coupling System With Experimental Verification

Abstract

The high-speed maglev train adopts active control through the suspension unit to maintain the specified distance above the track. In the presence of flexible track conditions, even if the train is not running, the train-track coupling vibration may occur. The research focuses on analyzing the coupled vibration of the train-track system under elastic track conditions, establishing a simplified and reasonable model of the coupled vibration, and devising a controller with pre-compensation and full-state feedback to ensure closed-loop stability and accurate reference tracking. The research further investigates the impact of various factors on the coupled vibration by modifying key parameters for obtaining root locus plots. Numerical simulation analysis is employed to assess the influence of control parameters on the coupled vibration. Based on the law of the influence of the control parameters, the suppression of the coupled vibration of the system was successfully achieved by adjusting the control parameters in the event of vehicle-track parameter mismatch. Finally, experiments were conducted on the Qingdao high-speed maglev train to verify the effectiveness of the proposed model and full-state feedback control algorithm.