Suspension control method of electromagnetic constant conduct low-speed magnetic-levitation train

A technology for maglev train and suspension control, which is applied in electric vehicles, electric traction, vehicle components, etc., can solve the problems of small range of suspension system parameters, poor stability, and difficulty in effectively taking into account tracking performance and robust performance.

Active Publication Date: 2015-04-01
NAT UNIV OF DEFENSE TECH
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  • Abstract
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Problems solved by technology

However, in the traditional suspension system design, the suspension control board uses the fast current loop as the inner loop and the gap ring as the outer loop, so it is difficult to overcome the nonlinear coupling relationship among the suspension

Method used

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  • Suspension control method of electromagnetic constant conduct low-speed magnetic-levitation train
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  • Suspension control method of electromagnetic constant conduct low-speed magnetic-levitation train

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Example Embodiment

[0053] Such as Figure 4 As shown, the steps of the levitation control method of the electromagnetic normally conductive low-speed maglev train of this embodiment include:

[0054] 1) Obtain the current levitation gap, current speed and current virtual magnetic flux of each levitation module A and B of each levitation module of the electromagnetic normally conductive low-speed maglev train;

[0055] 2) Take the current levitation gap and current speed of the levitation module A and B as the outer loop feedback value, and calculate the expected virtual magnetic flux at the levitation module A and B end in combination with the set levitation gap; use the levitation module A and B respectively The current virtual magnetic flux of the levitation module is used as the inner loop feedback value, and the expected virtual magnetic flux of the levitation module A and B are calculated to obtain the control quantity signals of the levitation module A and B. The levitation is realized by the co...

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Abstract

The invention discloses a suspension control method of an electromagnetic constant conduct low-speed magnetic-levitation train. The method comprises the steps: respectively obtaining an existing suspension gap between an end A and an end B of each suspension module, existing speed and existing virtual flux; respectively taking the existing suspension gaps between the ends A and B of the suspension modules and the existing speed as outer ring feedback quantity, and calculating expected virtual fluxes between the ends A and B of the suspension modules by the combination of the set suspension gaps; respectively taking the existing suspension gaps between the ends A and ends B of the suspension modules as inner ring feedback quantity, and calculating controlled quantity signals of the ends A and B of the suspension modules by the combination of the expected virtual fluxes between the ends A and B of the suspension modules, so as to realize the stable suspension of the ends A and B of the suspension modules. According to the suspension control method provided by the invention, a nonlinear coupling relationship among suspension force, suspension current and suspension gaps can be prevented, the inherent defects based on the inner ring control method of current can be overcome, the tracking performance and robust performance of the suspension system can be improved, a hardware sensor is not needed, the implementation cost is low, and the reliability is high.

Description

technical field [0001] The invention relates to a levitation control technology for a maglev train, in particular to a levitation control method for a low-speed maglev train based on virtual magnetic flux feedback and an electromagnetic type constant conduction (Electro Magnetic Suspension, EMS for short). Background technique [0002] Electro Magnetic Suspension (EMS for short) low-speed maglev train is a new type of vehicle that relies on the attraction between the electromagnet installed on the train and the track to make the train suspend on the track. It is characterized by its safety and comfort. , high speed, no pollution and other advantages to win more and more attention. The electromagnet and track of the EMS low-speed maglev train constitute the suspension system of the train. This system is an unstable system, and the stable suspension of the train can only be realized through feedback control. The suspension performance mainly depends on the suspension control ...

Claims

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Application Information

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IPC IPC(8): B60L13/04B60L13/06
Inventor 李杰李金辉周丹峰张锟崔鹏余佩倡王连春
Owner NAT UNIV OF DEFENSE TECH
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