Magnetic-levitation train and levitation control box

Abstract

The invention discloses a levitation control box for a magnetic-levitation train. The levitation control box comprises a box body (5), a heat dissipation device arranged in the box body (5), a strong current device and a weak current device, wherein an electrical connector is arranged on the box body (5); the strong current device comprises a power component (14); the weak current device comprises two control boxes (7); one end of an electromagnet is controlled by one control box (7), and the other end of the electromagnet is controlled by the other control box (7); the heat dissipation device, the strong current device and the weak current device are respectively connected with the electrical connector by virtue of first electric connecting wires; and the electrical connector is connected with a power supply by virtue of a second electric connecting wire. According to the levitation control box, the problem of number of levitation control boxes on the whole vehicle is effectively reduced. The invention also discloses a magnetic-levitation train comprising the levitation control box.

Description

technical field [0001] The invention relates to the technical field of rail trains, in particular to a suspension control box of a maglev train. In addition, the present invention also relates to a maglev train comprising the suspension control box. Background technique [0002] The medium and low speed maglev train relies on the electromagnetic levitation force between the vehicle and the track to make the train suspend stably above the track without contact with the ground. During the operation of the medium and low speed maglev train, the levitation sensor will detect the levitation gap value and acceleration value and The current sensor sends the working current value of the electromagnet coil to the suspension control box, and the suspension control box applies the control strategy to calculate the output control pulse according to the given suspension gap value, and controls the on-off time of the chopper to change the voltage added to the suspension electromagnetic. ...

AI Technical Summary

Problems solved by technology

Due to the large inductance of the suspension electromagnet, when the current changes rapidly, the electromagnet will generate a high counter electromotive force, and the chopper in the suspension control box must withstand high voltage and current. Under this condition, the suspension Choppers are prone to failure, as the reliability of the chopper decreases, so does the reliability of the suspension control box

[0004] There are many and dense electronic components in the existing suspension control box, the spacing distance is small, and the strong and weak electric components interfere with each other, so that the performance of the suspension control box is not high; there are many components in the box, the heat generation is high, and the heat dissipation effect is not ideal. The temperature in the box is too high, the electronic components and circuit boards are unstable, and the output accuracy is affected; one suspension control box controls the suspension state of one end of the electromagnet, and the number of suspension control boxes in the whole car is as many as 20. Each suspension control box There are 6 electrical connectors in the box, and there are as many as 120 electrical connectors in one car. There are too many wirings under the car, and the wiring difficulty, failure rate, maintenance difficulty and maintenance cost are high; there are many suspension control boxes, and the cooling fan Always work continuously, wasting a lot of energy; the two suspension control points of the suspension electromagnet module cannot communicate with the suspension sensor information during the suspension operation process, and coupling phenomena will occur during the suspension operation process, which will affect the suspension operation effect of the vehicle

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