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Blade fault monitoring method and equipment based on double arrays

A fault monitoring, dual-array technology, applied in mechanical equipment, wind turbine monitoring, wind power generation, etc., can solve problems such as difficulty in determining the location of blade faults, and achieve the effects of convenient deployment, cost reduction, and low delay.

Active Publication Date: 2020-05-08
大连赛听科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a blade fault monitoring method and equipment based on dual arrays to solve the problem that it is difficult to determine the fault location on the blade

Method used

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  • Blade fault monitoring method and equipment based on double arrays
  • Blade fault monitoring method and equipment based on double arrays
  • Blade fault monitoring method and equipment based on double arrays

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A blade failure monitoring method based on a double array, including a wind power generation tower, the wind power generation tower includes a tower body 3 and blades, the lower end of the tower body 3 is fixed on the ground, and the other end is connected to the blades through the tower tube, and the blades are connected by The plane on which the tower rotates as the axis is the fault plane 5, which includes the following steps:

[0041] S1. Arrange sound pick-up arrays to monitor and obtain blade fault information;

[0042] Set the position of the first array 1, specifically:

[0043] Such as figure 1 , figure 1 It is a side view of the position of the first array and the wind power generation tower in the present invention; the first array 1 is deployed at the bottom of the wind power generation tower. In this embodiment, the pick-up array is preferably arranged on the ground by means of bolts or the like, wherein,

[0044]The connection line between the end of th...

Embodiment 2

[0075] Such as figure 2 as shown, figure 2 It is a top view of the first array, the second array and the wind power tower; a blade failure monitoring device based on double arrays, including the first array 1, the second array 2 and the tower body 3, the first array 1 and the second Array 2 is deployed at the bottom of the wind power tower, and the pickup array can be arranged on the ground by means of bolts or the like;

[0076] Wherein, the connection line between the end of the first array 1 close to the tower body 3 and the center of the tower body 3 is larger than the radius of the tower body 3 in the direction parallel to the first array 1 body, which can be set according to the actual situation. The length of the projection, the length of the first projection is preferably within 2 times of the radius of the tower body 3, and in this embodiment, the distance of the first projection is 1.2 times of the radius of the tower body 3;

[0077] Further, the first array 1 c...

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Abstract

The invention relates to a blade fault monitoring method based on double arrays. The method comprises the following steps that S1, the first array is arranged, and blade fault information is obtainedthrough monitoring; and S2, a fault is positioned, specifically, S21, a fault azimuth is estimated, the minimum fault azimuth is obtained, and then positioning is performed by means of the first array; and S22, the second array is arranged, and the first array and the second array are matched to perform fault positioning. The invention further discloses blade fault monitoring equipment based on the double arrays. According to the blade fault monitoring method and equipment based on the double arrays, the first array and the second array are combined, and the problem that the positioning precision is increasingly low as an included angle between the first array and a rotating plane increases is solved; and the fault point estimation precision is improved, the array arrangement quantity is greatly decreased, fault positioning under the condition that a blade rotary shaft rotates with the wind direction is completed by means of the first array and the second array only, the array arrangement quantity is greatly decreased, and the cost is lowered.

Description

technical field [0001] The invention relates to the field of fault monitoring of blades of a wind power generation tower group, in particular to a blade fault monitoring method and equipment based on a double array. Background technique [0002] As the government pays more attention to environmental pollution, the traditional power generation methods based on chemical energy (coal, oil, natural gas) are increasingly restricted, while nuclear power generation has the problem of huge initial investment, and wind power and solar power generation are becoming increasingly popular. more encouragement from the government. Wind power is a renewable and clean energy with low environmental pollution, high degree of automation, and easy remote control. It is very suitable for solving the power supply demand in sparsely populated areas where the power grid is not easy to reach. Therefore, wind power has important economic and social benefits. . [0003] The blade is the key component...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00F03D80/00
CPCF03D17/00F03D80/00Y02E10/72
Inventor 胡晓宇代金良
Owner 大连赛听科技有限公司
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