Research on the Active Guidance Control System in High Speed Maglev Train

Abstract

The guidance system is one of the important subsystems of high-speed maglev train. The active guidance of high-speed maglev train is achieved by the attraction between the guide way and the electromagnets mounted on the side of the carriage. The working characteristics of the guidance system vary according to the different guide ways and weather conditions. In the straight line, the guiding current is very small. When suffering from the bend or big crosswind, the guiding current will be very large. Therefore, the model of the guidance system has greater uncertainty, and the guidance controller is more difficult to design. This paper presents a method to make the high-speed maglev train to obtain a stable guidance ability in different conditions. The mathematical model of the guidance system is established, and the robust guidance controller is designed by H ∞ control theory. The simulation and experiment demonstrate that the high-speed maglev train using the designed guidance controller has relatively desirable performance and achieves stable guidance ability successfully. INDEX TERMS High-speed maglev train, guidance system, nonlinear control system, robust control, H ∞ .

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