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

A technology of wind power generators and transverse flux, applied in the direction of synchronous motors with stationary armatures and rotating magnets, static components of magnetic circuits, rotating components of magnetic circuits, etc., can solve the problem of low utilization of magnetic flux space and winding The effective length ratio is not high, and the effect of shortening the inactive length, improving the utilization rate and increasing the torque density is achieved.

CN101577449BInactive Publication Date: 2011-04-20SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2011-04-20
Estimated Expiration
Not applicable · inactive patent

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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 atintervals; 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).
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Description

Technical field

[0001] The invention relates to an improved generator, in particular to a magnetic flux switching type transverse magnetic flux permanent magnet wind 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 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 is the most mature and economical. By 2010, the total installed capacity of wind power in the world will reach 230GW, and that in China is about 10GW. The development momentum is rapid and the development and utilization prospects are broad. Wind Generator is the key core equipment of wind power system. Its electrical and mechanical performance directly affects ...

Examples

Embodiment Construction

[0016] The magnetic flux switching type transverse magnetic 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 piece of permanent magnets with opposite magnetic poles are 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 has It is laminated with silicon steel sheets with the same size and placed in the casing sleeve of non-magnetic material to form the whole stator. The permanent magnet in the stator core is made of neodymium iron boron material.

[0017] Each rotor core is made of only silicon steel sheets and has a simple structure. The size of each rotor core is the same. Two adjacent rotor cores of each phase are arranged at intervals on the left and right, and are placed on a cylinder of non-magnetic material ...