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Device and method for monitoring inherent frequency of tower drum of large-megawatt wind turbine generator

A technology of natural frequency and wind turbines, applied in the monitoring of wind turbines, wind turbines, engines, etc., can solve problems such as inaccurate data, achieve the effects of ensuring accuracy, convenient and efficient management, and preventing false alarms

Inactive Publication Date: 2021-08-20
HUANENG CLEAN ENERGY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a large megawatt wind turbine tower natural frequency monitoring device and method, which solves the defect of inaccurate data existing in the existing wind turbine tower natural frequency monitoring method

Method used

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  • Device and method for monitoring inherent frequency of tower drum of large-megawatt wind turbine generator
  • Device and method for monitoring inherent frequency of tower drum of large-megawatt wind turbine generator
  • Device and method for monitoring inherent frequency of tower drum of large-megawatt wind turbine generator

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] Such as Figure 1 to Figure 4 As shown, a large megawatt wind turbine tower natural frequency monitoring device provided by the present invention includes a data acquisition unit and a control unit, wherein the data acquisition unit is used to collect vibration signals of each monitoring area on the tower, and The collected vibration signal is transmitted to the control unit; the control unit is used to compare the received vibration signal with a preset threshold, and judge whether the tower of the wind power generating set is abnormal according to the comparison result.

[0031] The data acquisition unit includes multiple sets of data acquisition components, and the multiple sets of data acquisition components are arranged at intervals along the axial direction of the tower of the wind power generating set.

[0032] Each group of data acquisition co...

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Abstract

The invention provides a device and a method for monitoring the inherent frequency of the tower drum of a large-megawatt wind turbine generator.The device comprises a data collection unit and a control unit, the data collection unit is used for collecting vibration signals of all monitoring areas on a tower drum, and transmitting the collected vibration signals to the control unit. The control unit is used for comparing the received vibration signal with a preset threshold value and judging whether the tower drum of the wind generating set is abnormal or not according to the comparison result, three-dimensional measurement of the tower drum can be achieved, and the measurement result is more accurate.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a tower natural frequency monitoring device and method for large megawatt wind turbines. Background technique [0002] The tower of the wind turbine is a key component of the entire wind turbine, supporting the normal operation of the blades and all equipment in the nacelle. Moreover, under the background of the goal of "carbon peak carbon neutrality" and the background of grid parity, wind turbines With the development of megawatts, long blades and high towers, the cost of a single unit will rise. Once a problem occurs in the tower, it will seriously affect the normal operation of the unit and cause safety and economic losses. Therefore, it is necessary to focus on monitoring and maintenance of the tower. [0003] When the wind turbine is running, the rotation of the wind wheel excites the tower to vibrate, so the natural frequency of the tower must avoid the relev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00
CPCF03D17/00
Inventor 蔺雪峰蔡安民焦冲李媛林伟荣郑磊杨博宇许扬金强李力森
Owner HUANENG CLEAN ENERGY RES INST
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