A control method for suspension instability of medium and low-speed maglev trains

Abstract

The invention discloses a control method replying to levitation instability of a medium-low speed maglev train; through a pre-stored determination scheme, collected operation data of a levitation point is judged to determine whether the levitation point generates levitation instability, and if the levitation point generates levitation instability, a controller sends a levitation instability signal and a synchronous landing signal to other controllers of a same levitation frame; when the levitation instability signal and the synchronous landing signal are received, controllers of levitation points perform synchronous action to make the whole levitation frame landed; all the controllers of the levitation frame have operation parameters reconfigurated, and a normal levitation state of the levitation frame is recovered. The control method can make the medium-low speed maglev train have no need of whole train emergency braking when the levitation instability occurs, so that abrasion influence on rails is relatively small, and normal operation of other carriages and other levitation frames are not affected.

Description

technical field [0001] The invention relates to the technical field of magnetic levitation, in particular to a control method for dealing with suspension instability of a medium-low speed magnetic levitation train. Background technique [0002] The suspension system is the core component of the medium and low-speed maglev train, and it is the basis for ensuring the normal operation of the train. During the operation of the train, due to the comprehensive influence of turnouts, track gaps, curved tracks, side winds, load changes and some unknown factors, the train may appear single-point or multi-point suspension instability. At this time, the suspension electromagnet and The track will hit violently, which will seriously affect the life of the vehicle and the track, and may even damage the important parts of the train and cause an accident. [0003] When suspension instability occurs, the existing countermeasures are to take emergency braking in time and send a landing comm...

AI Technical Summary

Problems solved by technology

However, due to emergency braking, it is necessary to land and stop the whole vehicle, which will cause serious wear and tear on the track, and endanger the personal safety of passengers due to the large inertia

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