Magnetic flux feedback suspension control method and device of EMS type low-speed aerotrain

A suspension train and suspension control technology, which is applied to electric vehicles, vehicle parts, transportation and packaging, etc., can solve the problems of difficulty in obtaining magnetic flux signals, small measurement range, technical obstacles, etc., to improve static and dynamic characteristics, and realize Effects that stabilize levitation, improve stability and robustness
CN103522912AActive Publication Date: 2014-01-22NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Publication Date
2014-01-22

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Abstract

The invention discloses a magnetic flux feedback suspension control method and device of an EMS type low-speed aerotrain. The method comprises the following implementation steps: collecting and obtaining the magnetic flux density at the position of a suspension gap through a magnetic flux induction coil a, and collecting the suspension accelerated speed and the suspension gap; calculating a suspension system control rate according to the magnetic flux density, the suspension accelerated speed and the suspension gap; generating a closed loop to control PWM signals according to the suspension system control rate, and respectively outputting the PWM signals to a PWM driving circuit to adjust the suspension force between a suspension electromagnet and a track. The device comprises a sensor set, a data collection board, a suspension controller and the PWM driving circuit, wherein the sensor set, the data collection board, the suspension controller and the PWM driving circuit are sequentially connected. The method and device have the advantages of being good in suspension control stability, high in sensitivity, low in control bandwidth, capable of improving the stability and robustness of the suspension control system, simple, easy to implement, strong in anti-jamming capability, good in expandability, and flexible in implementation.
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Description

technical field

[0001] The invention relates to the technical field of levitation control of maglev trains, in particular to a magnetic flux feedback levitation control method and device for EMS low-speed levitation trains. Background technique

[0002] EMS (Electro Magnetic Suspension) low-speed maglev train is a new type of rail transportation, which has the advantages of safety, comfort, high speed, low noise, no pollution, and small turning radius. Its main principle is to rely on the suspension electromagnet on the suspension train. The electromagnetic attraction between the track and the track makes the train suspend on the track, and then it is driven by linear motor traction. The EMS low-speed suspension train mainly includes traction system, suspension control system, secondary system structure, car body, etc. The traction system mainly refers to the traction motor and induction aluminum plate. Among them, the suspension control system includes suspension electroma...

Claims

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