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Permanent magnet magnet maglev using passive, lo-frequency electromagnetic stabilization

A magnetic levitation and stabilization technology, applied in the field of magnetic levitation system, can solve problems such as expensive efficiency

Active Publication Date: 2020-07-03
约翰范罗森戴尔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Induction coils for such frequencies can be fabricated using braided copper litz wire and other techniques designed for high frequencies, but the resulting systems are more expensive and less efficient than systems operating at lower frequencies

Method used

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  • Permanent magnet magnet maglev using passive, lo-frequency electromagnetic stabilization
  • Permanent magnet magnet maglev using passive, lo-frequency electromagnetic stabilization
  • Permanent magnet magnet maglev using passive, lo-frequency electromagnetic stabilization

Examples

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Embodiment Construction

[0028] Please refer now to the attached drawings, especially figure 1 , which shows a magnetic levitation system using permanent magnet-based levitation technology according to an embodiment of the present invention. The system, generally indicated by the numeral 10 , comprises two main elements, referred to herein as stationary rails 20 and trains 30 movable relative to the rails 20 . Components associated with guide rail 20 will be identified using 20 based reference numerals, while components associated with train 30 will be identified using 30 based reference numerals.

[0029] The system shown utilizes the attractive force of permanent magnets on the train 30 to the ferromagnetic material in the guide rail 20 . As is known in the art, permanent magnet attraction can provide a permanent levitation that is stable to disturbances in the vertical direction but unstable in the horizontal direction. This is a consequence of Earnshaw's theorem, which states that statically sta...

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Abstract

A magnetic levitation system includes a guideway and a vehicle. The guideway has ferromagnetic yokes and induction coils. The vehicle has levitation magnets for magnetic interaction with the ferromagnetic yokes wherein the vehicle levitates relative to the guideway. The vehicle has stabilization magnets coupled thereto for electromagnetic interaction with the induction coils as the vehicle travelsalong the guideway. Each stabilization magnet is a permanent magnet with a two-dimensional pattern of poles alternating in polarity in a first dimension and a second dimension.

Description

technical field [0001] The present invention relates generally to magnetic levitation (or "Maglev") systems, and more particularly to a magnetic levitation system that employs simple permanent magnet-based levitation combined with novel horizontal dimension stabilization that can be configured to operate efficiently at low frequencies System integration. Background technique [0002] Maglev (or "Maglev" as it is commonly known) is a method of transportation that moves maglev trains along rails. Maglev is faster, quieter and more efficient than conventional rail. In addition, magnetic levitation eliminates the wear and vibration of traditional railways' steel-to-steel contact, greatly reducing right-of-way maintenance. [0003] There are currently two main methods of magnetic levitation: electromagnetic levitation (EMS) and electric levitation (EDS). In EMS (such as the German ultra-high-speed magnetic levitation train), electromagnets on the train attract iron components ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B25/30B60L13/04
CPCB60L13/04B60L2200/26E01B25/30
Inventor 约翰·范·罗森戴尔
Owner 约翰范罗森戴尔
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