Independent five-phase permanent magnet wind driven generator

A technology of wind turbines and permanent magnets, applied in wind power generation, synchronous machines, electric components, etc., can solve the problems of propagation, non-faulty winding faults, and lack of isolation, and achieve small reluctance, short flux linkage, and iron loss. less effect

Inactive Publication Date: 2017-05-24
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are research reports on wind turbines, and there are also research reports on permanent magnets placed on the stator side, but so far no research reports on the relative independence of stator cores and the matching relationship

Method used

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  • Independent five-phase permanent magnet wind driven generator
  • Independent five-phase permanent magnet wind driven generator
  • Independent five-phase permanent magnet wind driven generator

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Embodiment Construction

[0029] The present invention provides a five-phase permanent magnet wind power generator with independent phases. In order to make the technical scheme and effects of the present invention clearer and clearer, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific implementation described here is only used to explain the present invention, but not to limit the present invention.

[0030] Such as figure 1 In the illustrated embodiment of a five-phase permanent magnet wind power generator with independent phases, in this embodiment, X=1. The five-phase permanent magnet wind generator is composed of a stator core (2), an outer rotor core (1), a permanent magnet (5), an armature winding (6), a stator fixing block (3) and a shaft (4). The outer rotor core (1) of the five-phase permanent magnet wind generator is directly driven by the wind turbine. The outer rotor core (1) has 16 roto...

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Abstract

The invention provides an independent five-phase permanent magnet wind driven generator which comprises a stator core, an outer rotor core, a permanent magnet, an armature winding, a stator fixing block and a shaft. The independent five-phase permanent magnet wind driven generator belongs to the technical field of special motors. 16X inward protruded rotor poles are arranged on the outer rotor core of a motor; X is a positive integer; 16X rotor poles are uniformly distributed; the stator core is equipped with 5X sub-cores in total; each sub-core is equipped with three stator poles; the pole arc length of the stator pole on the middle position is 1.53 times of the pole arc length of the rotor; the stator pole width on the two sides is equal to the rotor pole width; and permanent magnets are embedded between the stator pole on the middle position and the stator poles on the two sides on the sub-cores. According to the invention, the sub-stator cores of the motor are independent from each other, so that the windings wound on the stator poles are separated from each other. When one phase is in fault, the other windings can run in a fault-tolerant form, so that the reliability of the system can be increased.

Description

Technical field [0001] The invention relates to a five-phase permanent magnet wind generator with independent phases, and belongs to the technical field of special motors. Background technique [0002] In recent years, wind power has grown rapidly and has become the fastest growing new energy source. Wind turbines undertake the task of converting wind energy into electrical energy, and are the core components of wind power generation systems. With the development of the overall technology of wind power generation, wind turbines have evolved from early DC generators and cage asynchronous generators to the current doubly-fed asynchronous generators and low-speed direct-drive permanent magnet synchronous generators. [0003] Permanent magnet motors have become the most promising solution for wind power generation because of their high power density, high efficiency, high reliability, low maintenance costs, good grid compatibility, and strong low voltage ride-through capability. Howe...

Claims

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Application Information

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IPC IPC(8): H02K21/38H02K1/24H02K1/14H02K1/17H02K3/52
CPCH02K1/14H02K1/17H02K1/24H02K3/521H02K21/38H02K2213/03Y02E10/72
Inventor 史立伟沈法鹏贺光宗郭盈志肖东张学义
Owner SHANDONG UNIV OF TECH
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