Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator

A wind turbine, transverse magnetic flux technology, applied in synchronous motors with static armatures and rotating magnets, magnetic circuit static parts, magnetic circuit rotating parts, etc. To solve the problems of low utilization of space and other problems, it can shorten the invalid length, improve the utilization rate, and improve the torque density.

Inactive Publication Date: 2009-11-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, although many institutions at home and abroad have done a lot of research work on transverse flux generators, there are still some problems that need to be improved and solved.
In the existing transverse flux permanent magnet mo

Method used

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  • Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator
  • Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator
  • Magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator

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Embodiment Construction

[0016] The magnetic flux switching type transverse flux permanent magnet wind power generator of the present invention is composed of a stator and a rotor. In order to make better use of the space utilization of the transverse magnetic flux, a permanent magnet with opposite magnetic poles is embedded at both ends of the stator core. The magnetization directions of the permanent magnets in the two adjacent stator cores of each phase are opposite, and each stator core is It is made of silicon steel sheets with the same size, and placed in a casing sleeve of non-magnetic material to form a whole stator. The permanent magnet in the stator core is made of NdFeB material.

[0017] Each rotor core is only stacked with silicon steel sheets. The structure is simple. The size of each rotor core is the same. The two adjacent rotor cores of each phase are aligned and spaced, placed on a non-magnetic material cylinder to form the whole rotor.

[0018] When the generator is m-phase, the el...

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Abstract

The invention provides a magnetic flux switching type transverse magnetic flux permanent magnetism wind mill generator, which is a novel transverse magnetic flux permanent magnetism wind mill generator which is high in power density and torque density and is directly driven. A stator consists of a plurality of stator cores(1) distributed around a rotor and an armature winding(4); each stator core(1) is U-shaped, both sides of the stator core(1) are embedded with a first permanent magnet(2) and a second permanent magnet(3), and magnetic pole directions of the two permanent magnets are opposite; the ring-shaped winding(4) is arranged in the stator; the magnetic poles of the first permanent magnets(2) of the two adjacent stator cores(1) are opposite, and the magnetic poles of the second permanent magnets(3) of the two adjacent stator cores(1) are also opposite; all rotor cores(5) are the same in size; the two adjacent rotor cores(5) are aligned left and right respectively and arranged at intervals; the rotor cores(5) are made by overlapping silicon steel sheets and arranged on a cylinder(8) made of non-magnetic conduction materials to form the whole rotor; and the rotor is connected with a rotating shaft of a motor (6) and then connected with a shell(7) through a bearing(9).

Description

technical field [0001] The invention relates to an improved generator, in particular to a magnetic flux switching type transverse flux permanent magnet wind power generator in the field of high performance and direct drive. Background technique [0002] The intensification of the energy crisis restricts the improvement of the global economy and threatens the sustainable development of human society. The vigorous development and utilization of new energy and renewable energy has become an important part of the energy development strategy of most countries in the world. Compared with other forms of renewable energy, wind power has the highest maturity and the best economy. By 2010, the total installed capacity of wind power in the world will reach 230GW, and about 10GW in China, with a rapid development momentum and broad prospects for development and utilization. Wind generator (Wind Generator) is the key core equipment of wind power system, and its electrical and mechanical...

Claims

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Application Information

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IPC IPC(8): H02K1/17H02K1/22H02K21/12H02K21/18
Inventor 林鹤云颜建虎冯奕
Owner SOUTHEAST UNIV
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