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Method and system for preventing magnet levitation train from adsorption for track

A technology for maglev trains and rails, applied to electric vehicles, vehicle parts, electric traction, etc., can solve the problems of no public disclosure, etc., and achieve reasonable availability and reliability

Inactive Publication Date: 2009-06-10
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no publicly disclosed information on this project in this field in China

Method used

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  • Method and system for preventing magnet levitation train from adsorption for track
  • Method and system for preventing magnet levitation train from adsorption for track
  • Method and system for preventing magnet levitation train from adsorption for track

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Embodiment Construction

[0028] The invention provides a method and a system for protecting the dead track of an electromagnetic maglev train, which can effectively prevent the dead track of a maglev train with an electromagnetic-permanent-magnet hybrid structure.

[0029] Electromagnetic maglev trains have two types: pure electromagnet structure and electromagnetic permanent magnet hybrid structure. For the electromagnetic levitation system with pure electromagnet structure, its levitation force is all provided by the attractive force between the levitation electromagnet and the track. When the risk of suction exists, as long as the power supply can be reliably cut off, the suction protection can be effectively realized. And for the maglev train with the electromagnetic permanent magnet hybrid structure containing permanent magnets, cutting off the power supply can not effectively prevent suction dead, this is because when the suspension gap between the suspension magnet and the track is small, the gr...

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Abstract

The present invention is anti-locking control method and system for magnetic suspension train, and on the basis of traditional magnetic suspension control device, one anti-locking control device comprising one predicting controller, one logic processing unit, one power tube state detector, etc is set. The predicting controller predicts the dynamic suspension gap on the running magnetic suspension train based on the signal from the displacement sensor of the suspension control device and sends command to the suspension control device according to the prediction result. Normally, the magnet current is real-time regulated for the magnet to keep certain suspension interval to the track; and in case predicted locking risk, the anti-locking control device requires the suspension control device to feed inverse current to the magnet so as to avoid locking the train onto the track.

Description

technical field [0001] The invention relates to an electromagnetic maglev train, in particular to a method capable of effectively preventing an electromagnetic-permanent-magnet hybrid maglev train from sucking dead on a track and a system designed according to the method. Background technique [0002] The electromagnetic maglev train is a kind of rail vehicle that uses the attraction between the on-board magnet and the ferromagnetic track to achieve suspension. In addition to fast running speed, it also has the advantages of strong climbing ability, safety and comfort, low noise, and environmental protection. It will become one of the most important means of transportation in the 21st century. The magnitude of the electromagnetic attraction force of the electromagnetic maglev train needs to be actively controlled by the suspension controller, and the current in the electromagnet winding of the vehicle needs to be adjusted according to the signal of the gap sensor to maintain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L13/06
Inventor 李云钢张晓程虎陈慧星张鼎
Owner NAT UNIV OF DEFENSE TECH
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