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Permanent magnet electromagnetic hybrid magnet and design method thereof

An electromagnetic hybrid and design method technology, applied in electric vehicles, electric traction, railway vehicles, etc., can solve the problems of magnets attracting rails, potential safety hazards, and inability to apply reverse current, etc., to meet the requirements of dynamic adjustment performance Effect

Active Publication Date: 2022-07-12
湖南凌翔磁浮科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the power supply happens to fail under this working condition, then the reverse current cannot be applied, and the magnet may hold the track for a long time, posing a safety hazard during operation

Method used

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  • Permanent magnet electromagnetic hybrid magnet and design method thereof
  • Permanent magnet electromagnetic hybrid magnet and design method thereof
  • Permanent magnet electromagnetic hybrid magnet and design method thereof

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Embodiment Construction

[0032] The present invention is oriented to the permanent magnet electromagnetic hybrid magnet of the EMS type maglev train. Aiming at the problem of conflicting safety requirements and energy saving requirements, the invention proposes a method of separating the magnetic circuit of the permanent magnet and the magnetic circuit of the electromagnet and designing them separately. The first is to design the magnetic circuit of the permanent magnet according to the safety requirements, and then to optimize the design of the magnetic circuit of the electromagnet according to the energy saving requirements.

[0033] The specific method of the present invention is as follows: within the range permitted by safety requirements, the thickness and pole area of ​​the permanent magnet are properly calculated, so that the levitation force generated by the permanent magnet changes slowly with the air gap, so that the permanent magnet can also provide greater In addition, by optimizing the se...

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Abstract

The invention discloses a permanent magnet electromagnetic hybrid magnet and a design method thereof. The design method of the permanent magnet electromagnetic hybrid magnet comprises the following steps: calculating the thickness and the pole area of ​​the permanent magnet, so that the levitation force generated by the permanent magnet is close to that of the hybrid magnet. The weight of the train borne by it changes slowly with the air gap; the window area of ​​the electromagnet is optimized, so that the suspension force generated by the entire magnet can be quickly adjusted with the current change. The design method not only ensures that the hybrid magnet has good energy-saving effect and dynamic adjustment performance, but also solves the problem that the hybrid magnet is easily adsorbed to the rail in a power-off state, and takes into account the requirements of energy saving and safety.

Description

technical field [0001] The invention relates to the field of suspended magnets, in particular to a permanent magnet electromagnetic hybrid magnet and a design method thereof. Background technique [0002] The EMS type maglev train uses magnets to attract the track to provide levitation force, and by controlling the size of the levitation force, the train maintains a stable suspension, so as to realize the non-contact operation between the maglev train and the track. Usually, EMS type maglev trains use electromagnets. In order to improve its carrying capacity, the current of the electromagnets is often large, resulting in high levitation energy consumption and serious heating of the electromagnets. In the German TR08 maglev train, the carrying capacity of the electromagnet is limited because of the heating problem of the electromagnet. Although the carrying capacity still has room for improvement, it cannot be improved. [0003] One solution to the above problem is to use pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L13/04
CPCB60L13/04B60L2200/26
Inventor 周文武张平洋肖力刘恒坤
Owner 湖南凌翔磁浮科技有限责任公司
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