Magneticflux-switching type composite excitation transverse-magneticflux wind powered generator

Abstract

A magneticflux-switching type composite excitation transverse-magneticflux wind powered generator is a novel magneticflux adjustable type transverse-magneticflux wind powered generator which has high property and can be used for directly driving. The novel magneticflux adjustable type transverse-magneticflux wind powered generator has a structure that a stator comprises a plurality of stator cores (1) distributed at the circumference of a rotor, a first permanent magnet (2), a second permanent magnet (3), an armature winding (4) and an excitation winding (5), wherein each stator core (1) is in a U shape, two permanent magnets are respectively embedded into both edges of each stator core (1), pole directions are opposite, the armature winding (4) is arranged in the stator, the tooth part of the stator is provided with the excitation winding (5), and the poles of the two permanent magnets of every two adjacent stator cores (1) are reverse and opposite; each rotor core (6) has equal size, every two adjacent rotor cores (6) are respectively aligned left and right and arrayed at intervals, the rotor cores (6) are formed by overlapping silicon-steel sheets and arranged on a cylinder (9)made from non-magnetic materials so as to form a rotor integer, and the rotor integer is connected with a generator rotating shaft (10) and finally connected with a shell (8) through a bearing (11).

Description

technical field [0001] The invention relates to an improved generator, in particular to a magnetic flux switching hybrid excitation transverse magnetic 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. The wind generator (WindGenerator) is the key core equipment of the wind power system, and its electrical and mec...

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

In addition, the air gap magnetic field of the traditional permanent magnet generator cannot be adjusted. When used as a wind generator, the output voltage of the motor cannot be easily adjusted according to the wind speed. Therefore, the hybrid excitation method is introduced into the permanent magnet wind generator.

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