Double-stator permanent-magnet vernier wind driven generator

A wind turbine and double stator technology, applied in the direction of electrical components, electromechanical devices, magnetic circuit static parts, etc., can solve the problem of low utilization rate of windings, achieve improved torque density, and increase the sine degree of air-gap magnetic density waveform Effect

Active Publication Date: 2014-12-10
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are grooves in the inner stator, the protrusions are stator teeth, and the grooves between the two protrusions accommodate the windings. This stator structure makes the winding utilization rate not high

Method used

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  • Double-stator permanent-magnet vernier wind driven generator
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  • Double-stator permanent-magnet vernier wind driven generator

Examples

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] A double stator permanent magnet vernier wind generator, such as figure 1 As shown, it includes an outer stator 4, an inner stator 8 and a rotor 6; the outer stator 4 and the inner stator 8 are different in size, and the outer stator 4 and the inner stator 8 are coaxially arranged on the inner and outer sleeves, and the rotor 6 is set Between the outer stator 4 and the inner stator 8, and the outer stator 4, the inner stator 8 and the rotor 6 are concentrically distributed:

[0037] The motor of the example of the present invention has a double-layer air-gap topological structure, the outer stator 4 is cylindrical, and a pear-shaped slot is opened inside it along the circumferential direction, and the first three-phase armature winding is placed in the pear-shaped slot. Between adjacent slots is the first stator tooth;

[0038] The inner stator 8 is a cylindri...

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Abstract

The invention discloses a double-stator permanent-magnet vernier wind driven generator, and belongs to the field of motor manufacturing. The double-stator permanent-magnet vernier wind driven generator comprises an outer stator (4), an inner stator (8) and a rotor (6), wherein the outer stator is provided with a pear-shaped groove and first stator teeth; the inner stator (8) is provided with second stator teeth (9), and each second stator tooth (9) is provided with a flux modulation electrode (10) and a flux modulation electrode groove (11); the rotor (6) is of a cup-shaped structure, and a Halbach-structure permanent magnet (7) is arranged on the rotor; the tooth number of the first stator teeth of the outer stator (4) is equal to that of the teeth of the flux modulation electrode (10); moreover, the pear-shaped groove of the outer stator (4) and the flux modulation electrode (10) are oppositely distributed and arranged, and the first stator teeth of the outer stator (4) and the flux modulation electrode groove (11) are oppositely distributed and arranged. The double-stator permanent-magnet vernier wind driven generator disclosed by the invention is capable of generating a high-sine air-gap magnetic field, and has the characteristic of a high output torque.

Description

technical field [0001] The invention relates to a novel low-speed and high-torque three-phase permanent magnet vernier direct-drive wind power generator, which belongs to the technical field of motor manufacturing. Background technique [0002] Among the existing renewable and clean energy sources, wind energy has the advantages of greenness, cleanliness, safety, and high technological maturity, and its development and utilization have broad prospects. The wind power generation system can convert the kinetic energy of wind in nature into mechanical kinetic energy, then convert electromechanical energy, and finally convert it into electrical energy that can be used for production and life. The core device of the wind power system is the wind generator that completes the conversion of electromechanical energy. The performance of the wind generator directly restricts the utilization efficiency of wind energy to a large extent, and is related to the reliability and operating cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/04H02K1/14H02K1/16H02K1/27
Inventor 林鹤云张洋房淑华
Owner SOUTHEAST UNIV
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