Directly driving mixed excitation dual stator wind power dynamotor

A technology of wind power generator and mixed excitation, which is applied in wind power generation, synchronous motor with stationary armature and rotating magnet, electrical components, etc., which can solve the problems of low stator utilization rate, limited application, large stator space, etc., and achieve The effect of low manufacturing cost, high space utilization rate and large stator space

Inactive Publication Date: 2007-08-15
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the large space of the stator of the disc permanent magnet generator, the utilization rate of the stator is low, which limits its application in low-speed large-scale wind turbines

Method used

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  • Directly driving mixed excitation dual stator wind power dynamotor

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Embodiment Construction

[0017] The present invention adopts a special motor structure, that is, two inner and outer stators are arranged in a large generator body space according to actual application requirements, and the stator structure is similar to that of an ordinary outer rotor inner rotor motor. The outer stator 1 is fixed on the casing of the motor; the outer permanent magnets 2 and inner permanent magnets 3 with different polarities are staggered and pasted on the inner and outer walls of the cup-shaped rotor 8; the inner stator 4 is fixed on the inner stator bracket 5; the inner stator bracket 5 is fixed on the end cover 14; the cup-shaped rotor 8 and the rotor back yoke 11 are fixed on the rotating shaft 7; the cantilever claw pole 9 and the claw pole 13 are fixed together by screws and the rotor ring; the electric excitation winding bracket 10 is fixed on the motor end On the cover 14; the electric excitation winding 12 is sleeved in the electric excitation winding support 10.

[0018] B...

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Abstract

The dc-drive hybrid-excitation dual-stator wind-driven generator comprises: the dual-stator part including an inner/outer stator (4, 1) and inner stator frame (5), the excitation winding part including a winding (12) and winding frame (10), and a rotor including a cup rotor (8), an inner/outer permanent magnet (3, 2), a rotor yoke (11), and a rotation shaft (7). This invention cancels gear box, can adjust air gap magnetic field conveniently, and benefit to catch the maximal wind energy.

Description

technical field [0001] The invention relates to a direct-drive hybrid excitation double-stator wind power generator, which belongs to the technical field of generator manufacturing. Background technique [0002] As a clean and renewable energy source, wind energy will have a very broad development prospect as the technology gradually matures and its operating cost will be lower than that of hydropower and thermal power in the future. Wind turbines are a vital core link in the development of wind energy. The speed of large wind turbines is as low as tens of revolutions or even more than a dozen revolutions, so it has to rely on a speed-up gearbox to generate power-frequency alternating current through a generator with a normal speed. As the wind turbines are installed at tens of meters high in the wild, they are subjected to severe heat and winter, harsh environmental conditions, harsh working conditions of the speed-up gearbox, high cost, and heavy maintenance workload, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/00H02K16/04H02K21/12H02K1/27H02K3/28
CPCY02E10/725Y02E10/72
Inventor 林鹤云刘细平杨成峰
Owner SOUTHEAST UNIV
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