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

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...

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 motor, two sets of adjacent rotor cores only correspond to one set of stator cores, the space utilization rate of the magnetic flux is low, the effective length ratio of the winding is not high, and there is still room for improvement in the torque density

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