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Wind turbine generator

A technology for wind power generation devices and generators, applied to wind power generator components, electromechanical devices, wind power generation, etc., which can solve the problems of increased weight of the nacelle, unsatisfactory design strength and manufacturing costs, and achieve the effect of compact axial length

Inactive Publication Date: 2006-07-05
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the structure in which the nacelle is placed on the upper part of the pillar is formed, such an increase in the weight of the nacelle, for example, has a great impact on the design strength and manufacturing cost of the pillar, which is not ideal.

Method used

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  • Wind turbine generator
  • Wind turbine generator

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Embodiment Construction

[0016] One embodiment of the wind power generator of the present invention will be described below based on the drawings.

[0017] figure 2 The illustrated wind power generator 1 has a pillar 2 erected on a base 6 , a nacelle 3 disposed on the upper end of the pillar 2 , and a swivel head 4 disposed on the nacelle 3 so as to be rotatable about a substantially horizontal axis.

[0018] A plurality of windmill rotating blades 5 are arranged on the rotating head 4, which are radial around the rotating axis. As a result, the force of the wind blown from the direction of the rotation axis of the rotation head 4 onto the rotor blades 5 of the wind turbine is converted into power to rotate the rotation head 4 around the rotation axis.

[0019] figure 1 It is a cross-sectional view showing an example of an internal structure by enlarging a main part of the nacelle 3 .

[0020] The nacelle 3 has a nacelle floor 30 that rotates in the horizontal direction on the upper end of the pil...

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PUM

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Abstract

A wind turbine generator including a nacelle (3) having reduced size and weight is provided. The wind turbine generator includes a nacelle disposed on a tower. The nacelle includes a main shaft (11) that is connected to a rotor head (4) equipped with blades (5) and that integrally rotates with the rotor head, a gearbox (20) that increases the rotational speed of the main shaft and that outputs the resulting rotational speed, and a generator (13) driven by the output from the gearbox. In the wind turbine generator, a drivetrain (10) extending from the main shaft to the generator via the gearbox is disposed in the rotor head.

Description

technical field [0001] The present invention relates to a wind power generator that generates electricity using a windmill that converts wind, a natural energy source, into rotational force. Background technique [0002] There are known wind power generators that generate electricity using wind power as a natural energy source. This type of wind power generator has a nacelle (nacell) installed on a pillar, a rotating head with wind turbine rotor blades attached, a main shaft connected to rotate integrally with the rotating head, and a main shaft rotated by wind force connected to the wind turbine rotor blades. The speed increaser, the generator driven by the shaft output of the speed increaser. In the wind power generator configured in this way, the rotating head and the main shaft of the wind turbine rotor blades that convert wind power into rotational force rotate to generate shaft output, and the shaft output after the speed increase is transmitted to the dynamo. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/00H02K7/18H02K9/16F16H1/46
CPCF05B2260/40311Y02E10/721Y02E10/725Y02E10/722F05B2250/30Y02E10/726F03D11/02F05B2240/14F03D15/00F03D9/25F03D15/10Y02E10/72F03D7/04
Inventor 三宅寿生柴田昌明东崎康嘉正田功彦
Owner MITSUBISHI HEAVY IND LTD