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Blade zero drift detection method and system, electronic device and storage medium

A zero-position drift and detection method technology, applied in measurement devices, wind power generation, instruments, etc., can solve the problems of large error and high detection cost of fan blades, and achieve the effect of avoiding additional costs

Active Publication Date: 2021-09-03
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a low-cost and high-precision detection method, system, electronic equipment and memory medium

Method used

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  • Blade zero drift detection method and system, electronic device and storage medium
  • Blade zero drift detection method and system, electronic device and storage medium
  • Blade zero drift detection method and system, electronic device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This embodiment provides a detection method for blade zero drift, such as figure 1 As shown, the detection method includes:

[0055] Step 101. Obtain the first load of the target component when the wind turbine is running.

[0056] Step 102, when the difference between the first load and the second load is greater than or equal to the deviation threshold, it is determined that the blade has zero drift.

[0057] Wherein, the second load is the load of the target component obtained when the fan is running after zeroing the blades of the fan.

[0058] Wherein, the target component includes at least one of the main shaft, the hub, the wind wheel and the blade, and the first load of the target component can be measured in various ways, such as the first load of the target component can be obtained by a load strain sensor, or can be measured by The distance or vibration sensor measures the displacement or deformation of the target part and calculates the first load based on...

Embodiment 2

[0064] This embodiment provides a detection method for blade zero drift, and this embodiment is based on Embodiment 1, such as figure 2 As shown, the detection method further includes:

[0065] Step 201, acquiring the current wind speed.

[0066] Step 202, obtaining a first corresponding relationship between the simulated fan speed and the deviation threshold during operation.

[0067] Among them, the deviation threshold represents the deviation load of the target component of the fan when zero drift occurs and when zero drift does not occur;

[0068] Step 203. Obtain a deviation threshold corresponding to the current wind speed from the first correspondence.

[0069] The deviation threshold compared in step 102 is the deviation threshold corresponding to the wind speed acquired in step 203 .

[0070] In this example, if image 3 As shown, step 202 specifically includes:

[0071] Step 2021, obtaining the third load of the target component when the blade does not drift at...

Embodiment 3

[0093] This embodiment provides a detection system for blade zero drift, such as Image 6 As shown, the detection system includes: a load acquisition module 301 and a blade detection module 302, the load acquisition module 301 is used to obtain the first load of the target component when the fan is running, and the blade detection module 302 is used to compare the first load with the second load When the difference is greater than or equal to the deviation threshold, it is determined that the blade has zero drift, and the second load is the load of the target component obtained when the fan is running after zeroing the blade of the fan .

[0094] Wherein, the target component includes at least one of the main shaft, the hub, the wind wheel and the blade, and the first load of the target component can be measured in various ways, such as the first load of the target component can be obtained by a load strain sensor, or can be measured by The distance or vibration sensor measur...

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Abstract

The invention discloses a blade zero drift detection method and system, an electronic device and a storage medium. The detection method comprises the following steps: acquiring a first load of a target component when a fan runs; and when the difference value between the first load and a second load of the target part obtained after zero calibration of the blade of the fan is larger than or equal to a deviation threshold value, determining that zero drift happens to the blade. According to the method, whether the blade of the fan has zero drift can be judged through the load of the target component, on one hand, errors caused by manual inspection and influences on normal operation of the fan are avoided, and on the other hand, extra cost caused by adding a video sensor in a hub or the blade is also avoided.

Description

technical field [0001] The invention relates to the field of fan detection, in particular to a detection method, system, electronic equipment and storage medium for blade zero drift. Background technique [0002] The blade is one of the core components of the wind turbine. When the fan is running, whether the blade is in the standard position, that is, the zero position, will directly affect the performance and benefit of the fan. In the existing technology, there are mainly the following two ways to detect whether the zero drift of the blade occurs: [0003] 1. Manually check the zero mark line at the root of the blade, and judge whether the zero position drift of the blade occurs through the alignment of the mark line; [0004] 2. After taking pictures through a specific sensor system, image processing is performed. [0005] The first method, that is, the method of manual inspection, needs to cooperate with specific tooling, and needs to rely on people's sight for alignm...

Claims

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Application Information

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IPC IPC(8): G01B21/32G01B21/02
CPCG01B21/32G01B21/02Y02E10/72
Inventor 徐志伟
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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