Method for inhibiting maglev train suspending system track coupled vibrations and control unit

A maglev train, coupled vibration technology, applied in electric vehicles, vehicle components, electric traction and other directions, can solve problems such as vehicle-rail coupled vibration, and achieve the effect of amplifying noise and suppressing vehicle-rail coupled vibration

Inactive Publication Date: 2009-01-21
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a control method capable of suppressing the rail coupling vibration of the maglev train suspension system, aimi

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  • Method for inhibiting maglev train suspending system track coupled vibrations and control unit
  • Method for inhibiting maglev train suspending system track coupled vibrations and control unit
  • Method for inhibiting maglev train suspending system track coupled vibrations and control unit

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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] In the field of maglev train suspension control system, the control algorithm usually used for maglev often ignores the existence of track elasticity, but treats the maglev system as a third-order system. Therefore, in the actual operation process, this method Nothing can be done about the vibration of the track. In order to solve the problem of track vibration, the present invention proposes a method for obtaining the state of the track, regards the track as an elastic track, incorporates the track characteristics into the maglev train control system, and uses the state of the track and the...

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Abstract

The invention provides a method for inhibiting the track coupled vibration of a suspension system of a magnetic suspension train; the method is as follows: bringing the characteristics of a magnetic track into the magnetic suspension train system to lead to a five-level system of the magnetic suspension train system; acquiring five independent state variables which represent the suspension train and track states; comprehensively controlling the magnetic suspension system according to the five state variables and adjusting the control variables of the system; controlling the suspension clearance of the magnetic suspension train in a certain range; inhibiting the coupled vibration of the track of the suspension system of the magnetic suspension train and realizing the stable suspension of the magnetic suspension train. The invention further provides a suspension control unit formed by a suspension magnet, a suspension sensor, a suspension controller, a differentiator and the like, and the suspension control unit is used as an execution element in the control. The method not only inhibits the coupled vibration of the track of the suspension system of the magnetic suspension train, but also effectively solves the problem of noise amplification in the ordinary differential method.

Description

【Technical field】 [0001] The invention relates to a control system of a magnetic levitation train, in particular to a control method and a suspension control unit capable of suppressing the vehicle-rail coupling vibration of the suspension system of the magnetic levitation train. 【Background technique】 [0002] The electromagnetic maglev train uses a levitation magnet located under the track to attract the track to provide the magnetic force required for levitation. The stable suspension of the train is realized by the suspension control unit, which provides a certain current for the suspension electromagnet, so that under a certain suspension gap, the suspension force is equal to the gravity of the train, thereby realizing the stable suspension of the train. [0003] Vehicle-rail coupling vibration (vibration of train and track) is a common and difficult problem in the suspension system of maglev trains. This vibration not only affects the stability of the maglev train syst...

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Application Information

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IPC IPC(8): B60L13/04B60L13/06
Inventor 刘恒坤程虎李云钢陈慧星张颖王强
Owner NAT UNIV OF DEFENSE TECH
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