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Blade leading edge corrosion monitoring method and system

A technology of blade leading edge and monitoring system, applied in wind turbine monitoring, measurement device, control algorithm type, etc., to avoid the increase of fatigue load, avoid serious corrosion, and improve the quality of maintenance

Active Publication Date: 2021-04-30
CYBERINSIGHT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the existing technology, there is an urgent need for a targeted online monitoring system, which can identify the corrosion status of the leading edge of each machine position in time and avoid power loss caused by corrosion.

Method used

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  • Blade leading edge corrosion monitoring method and system
  • Blade leading edge corrosion monitoring method and system
  • Blade leading edge corrosion monitoring method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0144] Taking the blades of a 1.5MW wind turbine in a high rain erosion wind field as an example, the sensors of the monitoring system are installed at a suitable position at the bottom of the tower. The position of the main wind direction of the fan is determined. The sensor is fixed on the bracket, and the bracket is pasted on the outer surface of the tower through magnetic attraction and structural glue, and the sensor is connected to the collection cabinet through the signal line. The collection cabinet is arranged on the bottom platform of the tower through bolt connection, and the collection cabinet enters the wind farm ring network through the network port and the wind farm ring network router at the bottom of the tower. The server is arranged in the booster station and connected to the ring network of the wind field. The server is connected to the SCADA of the wind field conventional monitoring system. It communicates with Scada through the Modbus soft gateway to obtai...

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Abstract

The invention relates to a blade leading edge corrosion monitoring method and system. The blade leading edge corrosion monitoring method comprises the following steps that a wind sweeping signal of a blade is collected through a sound sensor; through a condition filtering module, sound data, meeting conditions, in the operation process of a draught fan are obtained at fixed intervals; quality detection is conducted on the sound data through a data quality processing module, and the sound data with poor data quality are screened out; and whether blade leading edge corrosion exists or not is identified, the severity degree of the corrosion is evaluated, and early warning information is given out when the corrosion degree exceeds a set threshold value. By means of the blade leading edge corrosion monitoring method and system, the blade leading edge corrosion based on the machine position level can be recognized in time, alarm information is provided before the blade leading edge corrosion damages a structural layer, and targeted and timely maintenance is supported.

Description

technical field [0001] The present application relates to a method and system for monitoring corrosion of the leading edge of a blade, which are suitable for the technical field of damage monitoring. Background technique [0002] The blade is the key component of wind catching, and the specially designed aerodynamic shape is the key to ensure the wind catching ability. The aerodynamic shape of the blade tip area, especially the 1 / 3 length area of ​​the blade tip, is the most critical area. Damage to the aerodynamic shape of the blade tip area, especially the damage to the leading edge of the airfoil, will greatly reduce the power generation output of the fan. Therefore, ensuring the integrity of the aerodynamic shape in the operating life cycle of the wind turbine is a key operation and maintenance goal to ensure the power generation performance of the wind turbine. [0003] However, wind turbines operate in complex or even harsh environments all year round. In some areas, ...

Claims

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Application Information

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IPC IPC(8): F03D17/00G01H17/00
CPCF05B2260/821F05B2260/83F05B2260/84F05B2270/70F05B2270/806F03D17/00G01H17/00
Inventor 朱小芹鲍亭文王旻轩刘展金超
Owner CYBERINSIGHT TECH CO LTD
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