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Uniaxially coupled double-wind driven generator

A wind turbine, uniaxial technology, applied to wind turbine components, wind turbines, wind turbine combinations, etc., can solve the problems of inconvenience, large deflection force of the generator support frame, and inappropriate application of large generators, etc. Easy to use, high heat dissipation efficiency and superior performance

Inactive Publication Date: 2012-03-28
GUANGXI YINHE WIND POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large rotation radius of the rotor shell, the bias force on the generator support frame is relatively large, and the existing outer rotor structure is not suitable for large generators
[0003] This shows that above-mentioned existing outer rotor wind-driven generator obviously still has inconvenience and defect in structure and use, and urgently needs to be further improved

Method used

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  • Uniaxially coupled double-wind driven generator
  • Uniaxially coupled double-wind driven generator
  • Uniaxially coupled double-wind driven generator

Examples

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Embodiment Construction

[0030] see figure 1 As shown, the single-shaft coupled dual wind power generator of the present invention mainly includes a tower 6 , a main frame 1 , a main shaft 2 , a hub 3 , a converter and two wind power generators 4 .

[0031] Among them, the two wind power generators 4 are medium voltage (MV) megawatt variable speed permanent magnet wind power generators, both of which are mainly composed of an inner stator 41 and an outer rotor 42 .

[0032] The stator 41 is preferably a coil winding made of rectangular copper conductors, forming multiple parallel circuits, using a three-phase system.

[0033] The rotor 42 is a permanent magnet, preferably a bipolar permanent magnet system. Each pole is connected by a plurality of magnetic steel blocks through clamps and interference rings. The outer surface of the magnetic steel blocks is provided with electroplating or epoxy anti-corrosion coating. A copper layer is provided between the anti-corrosion coatings of the magnetic steel ...

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Abstract

The invention relates to a uniaxially coupled double-wind driven generator. The double-wind driven generator comprises a tower cylinder, a main frame, a spindle, a wheel hub, a converter and two wind driven generators, wherein the middle part of the main frame is fixedly connected with the tower cylinder; the spindle is connected with the wheel hub, and is mounted on the main frame through a mainbearing; two wind driven generators mainly comprise an internal stator and an external rotor respectively, and are fixed at two ends of the main frame through the stator, the rotors of two wind driven generators are all connected with the spindle; and a stator side of each wind driven generator is connected with one or a plurality of independent full-power converters, and a power grid is connected in parallel among the converters. The uniaxially coupled double-wind driven generator provided by the invention has a structure design of compact external rotor and internal stator; meanwhile, the stress on a generator supporting frame can be balanced, and the service life of the generator tower cylinder is prolonged; the uniaxially coupled double-wind driven generator is suitable for a large-scale generator system to overcome the disadvantage of the existing external rotor wind driven generator.

Description

technical field [0001] The invention relates to a generator, in particular to a single-shaft coupled double wind power generator. Background technique [0002] In recent years, wind turbines with outer rotor and inner stator have been gradually popularized and used because of their advantages of compact structure, space saving, exquisite design, and easy cooling. However, due to the large rotation radius of the rotor casing, the biasing force on the generator support frame is relatively large, and the existing outer rotor structure is not suitable for application to large generators. [0003] This shows that above-mentioned existing outer rotor wind-driven generator obviously still has inconvenience and defect in structure and use, and urgently needs to be further improved. How to create a single structure with a compact outer rotor and inner stator structure, which can balance the force of the generator support frame, which is beneficial to prolong the life of the generato...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/00H02K11/00H02K1/27H02K9/04
CPCF03D9/002Y02E10/722Y02E10/725F03D11/028F05B2240/40F03D9/25F03D15/20Y02E10/72
Inventor 睿礼贺
Owner GUANGXI YINHE WIND POWER
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