Permanent magnet and electromagnet 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, inability to apply reverse current, and potential safety hazards, and meet the requirements of dynamic adjustment performance Effect

Active Publication Date: 2021-01-08
湖南凌翔磁浮科技有限责任公司
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  • Abstract
  • Description
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  • 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 and electromagnet hybrid magnet and design method thereof
  • Permanent magnet and electromagnet hybrid magnet and design method thereof
  • Permanent magnet and electromagnet 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 EMS type maglev train, aiming at the contradictory problem of safety requirement and energy-saving requirement, proposes a kind of method that the magnetic circuit of permanent magnet and the magnetic circuit of electromagnet are separated and designed separately, its 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 in combination with the energy saving requirements.

[0033] The specific method of the present invention is: within the scope allowed by the safety requirements, the thickness and pole area of ​​the permanent magnet are properly calculated, so that the levitation force produced by the permanent magnet changes slowly with the air gap, so that the permanent magnet can also provide a larger The levitation force has a certain energy-saving e...

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Abstract

The invention discloses a permanent magnet and electromagnet hybrid magnet and a design method thereof. The design method of the permanent magnet and electromagnet hybrid magnet comprises the following steps that the thickness and the polar area of a permanent magnet are calculated, so that the suspension force generated by the permanent magnet is close to the train weight borne by the hybrid magnet and changes slowly along with an air gap; the window area of an electromagnet is optimized, so that the suspension force generated by the whole magnet can be quickly adjusted along with the currentchange. 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 liable to attract a rail in a power-off state, so that the requirements of energy saving and safety are met.

Description

technical field [0001] The invention relates to the field of suspension magnets, in particular to a permanent electromagnetic hybrid magnet and a design method thereof. Background technique [0002] EMS-type maglev trains use magnets to attract rails to provide levitation force, and control the magnitude of the levitation force to keep the train in a stable levitation, so as to realize the non-contact operation between the maglev train and the track. Normally, EMS maglev trains use electromagnets. In order to improve their carrying capacity, the current of the electromagnets is often large, resulting in high energy consumption for levitation and serious heating of the electromagnets. In the German TR08 maglev train, the load-carrying capacity of the electromagnet is limited due to the heating problem of the electromagnet. Although there is still room for improvement in the load-carrying capacity, it cannot be improved. [0003] One solution to the above problems is to use p...

Claims

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Application Information

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IPC IPC(8): B60L13/04
CPCB60L13/04B60L2200/26
Inventor 程虎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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