JP2005069024A - Remote maintenance device of wind turbine generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically grease up when detecting a clear difference by distributing a sound detector near each movable part of a wind turbine generator, and dynamically comparing with the previously prepared sound of each part at the normal time correspondint to the wind force at that time, to prevent a mechanical deterioration owing to the shortage of grease, and to inform of an abnormal portion and to prompt to exchange it using a general purpose circuit, etc., when the abnormal sound continues even after greasing up thereof. <P>SOLUTION: A grease up device and the sound detector are distributed to a gear for transmitting the rotational force to a power generator, a bearing for making it go straight with respect to the wing wind direction, and a shaft bearing for supporting the wing and the power generator. The grease up device and the sound detector are connected to a sound comparator for comparing with a normal gear creak. An anemometer is connected to the sound comparator. The sound comparator is comprised of a calculating CPU and a storage memory. The gear creak of each part at the normal time is stored in the storage memory. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor power generator utilizing wind power.
[0002]
2. Description of the Related Art Various remote maintenance devices are attached to an outdoor power generator using wind power, but its monitoring range is limited to an electrically detectable operating state notification and abnormality notification. (For example, see Patent Document 1)
Some devices have been remotely monitored by images or the like, but the monitoring range is limited to the presence or absence of physical damage in the visible range.
[0003]
[Patent Document 1] Japanese Patent Laid-Open No. 2002-349415 (FIG. 3)
[0004]
In a conventional remote maintenance device, an operating state and an abnormal state that can be detected electrically, a physical damage caused by an image, and the like can be seen, but a blade that converts wind force into rotational force. No abnormality in the mechanism could be detected, such as the gear part for transmitting the rotating part and its rotational force to the power generation part, the bearing part for directing the wing part to the wind direction, and the shaft bearing part for supporting the wing part and the power generation part.
[0005]
[Means for Solving the Problems] In order to solve the problems, a sound detector is applied to an arbitrary part of each movable part, and a dynamic comparison is made according to the sound of each part prepared in advance and the wind force at that time, When an obvious difference is detected, the grease is automatically increased by a grease-up device applied to each part.
If the abnormal sound continues even after the grease-up is executed, a notice for urging the replacement together with the abnormal part is given using a general general-purpose line or the like.
[0007]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of FIG. 1, a gear unit 1 for transmitting rotational force to a power generation unit 6, a bearing unit 2 for directing a wing unit 7 to the wind direction, and a wing unit and a power generation unit are supported. Grease-up devices 11, 21, and 31 and sound detectors 12, 22, and 32 are applied to the shaft bearing unit 3 that performs the operation. The grease comparison devices 4, 21, and 31 and the sound detectors 12, 22, and 32 are connected to an acoustic comparison device 4 that compares with normal gear noise. An anemometer 5 is connected to the acoustic comparison device 4. The acoustic comparison device 4 is composed of a calculation CPU 41 and a storage memory 42, and the storage memory 42 stores gear sound of each part at normal times.
[0008]
The gear ringing sound input from the sound detectors 12, 22, 32 is a gear ringing comparison value calculated from the gear ringing sound of each part at normal time stored in the storage memory 42 and the wind speed input from the anemometer 5. If a large difference is recognized, grease is injected into each gear / bearing portion via the grease-up devices 11, 21, and 31.
[0009]
According to the present invention, a sound detector is applied to an arbitrary part of each movable part, and a dynamic comparison is made according to the sound of each normal part prepared in advance and the wind force at that time. The applied grease-up device can automatically grease up and prevent mechanical deterioration due to insufficient grease.
[0010]
If the abnormal sound continues even after the grease up is performed, a fatal damage to the wind turbine generator can be prevented beforehand by using a general-purpose line or the like to notify the replacement along with the abnormal part.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a wind power generator according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a wind power generator according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Transmission gear 11 Grease-up apparatus 12 Sound detector 2 Bearing 21 Grease-up apparatus 22 Sound detector 3 Axle bearing 31 Grease-up apparatus 32 Sound detector 4 Acoustic comparison apparatus 41 Operation CPU
42 Storage Memory 5 Anemometer 6 Power Generation Unit 7 Wing

Claims (2)

In an outdoor power generation apparatus using wind power, a wing section that converts wind power into rotational force, a gear section that transmits the rotational force to the power generation section, and a bearing section that rotates and supports the wing section so as to be orthogonal to the wind direction, and the wing The gear ringing sound against the wind force of the shaft bearing part that supports the rotation part and the power generation part is detected, compared with the sound of each part prepared in advance under normal conditions, and when a difference is detected, the grease up device applied to each part A remote maintenance device that automatically greases. 2. The remote maintenance device according to claim 1, wherein when an abnormal sound is generated even after the grease-up is performed, a general general-purpose line or the like is used to notify the replacement together with the abnormal part.

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