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Sound transducer array based wind turbine blade fault monitoring method and equipment

A technology of wind turbines and acoustic sensors, which is applied in the monitoring of wind turbines, wind turbines, mechanical equipment, etc., can solve the problems of low management efficiency and high operation and maintenance costs, reduce maintenance time, improve operation and maintenance efficiency, increase The effect of robustness

Active Publication Date: 2020-04-10
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

[0005] The technical problem to be solved by the present invention is to provide a wind turbine blade fault monitoring method and equipment based on an acoustic sensor array to solve the problems of high operation and maintenance costs and low management efficiency in blade working condition monitoring

Method used

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  • Sound transducer array based wind turbine blade fault monitoring method and equipment
  • Sound transducer array based wind turbine blade fault monitoring method and equipment
  • Sound transducer array based wind turbine blade fault monitoring method and equipment

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Embodiment 1

[0058] Such as figure 1 , Figure 5 , figure 1 A schematic diagram of the location of the acquisition array and the wind generator provided by the embodiment of the present invention; Figure 5 The flow block diagram provided for the embodiment of the present invention; the wind turbine blade fault monitoring method based on the acoustic sensor array, including a wind generator, the wind generator includes several wind blades, and the wind blades rotate around the tower, this embodiment In the middle are three wind blades, such as figure 1 The wind blade 1, the wind blade 2, and the wind blade 3, wherein the wind blade 1, the wind blade 2, and the wind blade 3 rotate around the tower, also include the following steps:

[0059] S1. Deploy the acquisition array, and pick up the sound signal of the blade through the acquisition array;

[0060] Such as figure 1 , the acquisition array is fixed on the bottom of the support rod of the wind turbine through bolts, and is in the s...

Embodiment 2

[0105] The monitoring equipment based on the acoustic sensor array-based wind turbine blade failure monitoring method includes a wind generator, the wind generator includes several wind blades, and the wind blades rotate around the tower, and also includes;

[0106] Deployment module, for deploying collection array;

[0107] It also includes: the collection array is in the same plane as the rotating surface of the wind blade; at the same time, when the perpendicular line of the line segment of the wind blade passes through the midpoint of the collection array, the collection array is parallel to the wind blade;

[0108] The enhancement module is used to enhance the blade sound signal picked up by the acquisition array, and construct a CNN fault judgment model;

[0109] It also includes: dividing the wind blades into m areas in units of n meters, the acquisition array determines a direction for each area, obtains m directions, and performs signal enhancement on the m directions...

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Abstract

The invention relates to a sound transducer array based wind turbine blade fault monitoring method and equipment. The sound transducer array based wind turbine blade fault monitoring method comprisesthe following steps: S1 of deploying an acquisition array, and fixedly mounting the acquisition array on the bottom of a supporting rod of a wind driven generator; S2 of strengthening a blade sound signal picked up by the acquisition array, and constructing a CNN fault judgment model; S3 of positioning a fault position of a blade with faults; S4, restraining a strong interference direction, and returning to the step S3; and S5, after positioning the fault position, positioning the wind turbine blade with the fault. The acquisition array is deployed on the bottom of the wind driven generator, and a sound signal is acquired for the wind turbine blade in a non-contact mode, so that deployment and operation and maintenance cost can be effectively reduced.

Description

technical field [0001] The invention relates to the field of blade fault monitoring, in particular to a wind power generator blade fault monitoring method and equipment based on an acoustic sensor array. Background technique [0002] With the development of society, people pay more and more attention to environmental pollution. Traditional power generation methods based on chemical energy (coal, oil, natural gas) are increasingly restricted, while nuclear power generation has a problem of huge initial investment. Power generation and solar power are gaining more and more attention. 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] Blades are the key components of wind power generators (hereinaft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00G06N3/04
CPCF03D17/00G06N3/045Y04S10/50
Inventor 胡晓宇代金良
Owner 大连赛听科技有限公司
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