A suspension redundant control system for medium and low speed maglev trains

Abstract

The invention relates to a suspension redundancy control system for medium and low-speed maglev trains, which comprises four suspension electromagnet magnetic poles arranged on one side of the suspension frame, two suspension sensors arranged on both sides of the electromagnet, and four suspension electromagnetic poles. The ferromagnetic poles are connected one by one to the four suspension choppers, and the suspension controllers are respectively connected to the suspension choppers, and the suspension controllers are respectively connected to the two suspension sensors. Compared with the prior art, the invention has strong practicability and has the advantages of improving the reliability and stability of the suspension system operation and the like.

Description

technical field [0001] The invention relates to the technical field of rail transit vehicles, in particular to a suspension redundancy control system for medium and low-speed maglev trains. Background technique [0002] The maglev train is a new type of rail transportation with outstanding features such as low operating noise, strong climbing ability, small turning radius, high safety and reliability, low operation and maintenance costs, and low construction cost. It uses electromagnetic suction to suspend the car body above the track, and maintains a non-contact state between the train and the track, which overcomes the contact wear between the two and reduces the running resistance. The suspension control system is the actuator to realize the suspension of the vehicle. It changes the internal current of the suspension electromagnet according to the air gap between the suspension electromagnet and the track transmitted by the suspension sensor installed on the electromagnet...

AI Technical Summary

Problems solved by technology

Such a suspension system does not implement a redundant design. When the first suspension electromagnet magnetic pole, the second suspension electromagnet magnetic pole or the front suspension controller and its related first suspension sensor fail, the suspension point cannot be suspended normally, and the suspension frame Half of the suspension force will be lost on this side of the suspension point, and the support sled corresponding to the suspension point will have continuous contact with the track, causing the train to slow down and stop running after clearing passengers at the nearest station, causing the train to be delayed or cancel the number of trains. Will affect the system availability index

Likewise, when the third levitation electromagnet pole, the fourth levitation electromagnet pole, or the rear levitation controller and its associated second levitation sensor fail, the levitation point cannot levitate normally, and this side of the levitation frame will also lose half suspension force

The non-redundant design of the suspension system leads to low availability of the system, which restricts the further development and application of maglev trains

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