Medium-low-speed magnetic levitation train suspension redundancy control system

Abstract

The invention relates to a medium-low-speed magnetic levitation train suspension redundancy control system. The system comprises four suspension electromagnet magnetic poles arranged on an electromagnet on one side of a suspension frame, two suspension sensors arranged on the two sides of the electromagnet, four suspension choppers correspondingly connected with the four suspension electromagnet magnetic poles one to one, and suspension controllers connected with the suspension choppers respectively, wherein the suspension controllers are connected with the two suspension sensors respectively.Compared with the prior art, the system is high in practicability and has the beneficial effect that the reliability and stability of a suspension system are improved.

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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