Doppler lidar telemetry for wind turbine vibration

Jia-xiang SHI; Song-hua WU; Yi-lin QI; Qing-yuan CHEN; Kai-lin ZHANG

doi:10.37188/OPE.20202810.2180

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Doppler lidar telemetry for wind turbine vibration

Modern Applied Optics | 更新时间：2020-11-16

- Doppler lidar telemetry for wind turbine vibration
- Optics and Precision Engineering Vol. 28, Issue 10, Pages: 2180-2191(2020)
- 作者机构：
  
  1.中国海洋大学信息科学与工程学院海洋技术系, 山东青岛 266100
  2.青岛海洋科学与技术试点国家实验室区域海洋动力学与数值模拟功能实验室, 山东青岛 266237
  3.青岛镭测创芯科技有限公司, 山东青岛 266101
- 作者简介：
  
  ZHANG Kai-lin, E-mail:zhangkl@ouc.edu.cn
- 基金信息：
- DOI：10.37188/OPE.20202810.2180
  CLC： TN958.58
- Received：24 April 2020，
  
  Revised：27 May 2020，
  
  Accepted：27 May 2020，
  
  Published：25 October 2020
- 稿件说明：
移动端阅览
Jia-xiang SHI, Song-hua WU, Yi-lin QI, et al. Doppler lidar telemetry for wind turbine vibration[J]. Optics and precision engineering, 2020, 28(10): 2180-2191.
DOI：

Jia-xiang SHI, Song-hua WU, Yi-lin QI, et al. Doppler lidar telemetry for wind turbine vibration[J]. Optics and precision engineering, 2020, 28(10): 2180-2191. DOI： 10.37188/OPE.20202810.2180.

摘要

为了实现对风力发电机振动的遥测，提出了一种新的风力发电机状态监测方式。利用相干多普勒激光雷达探测风力发电机的低频振动，并对遥测方法、测振频谱数据处理方法以及试验中出现的现象进行试验研究。试验分为风力发电机实测试验和固定目标实测试验两部分：首先在距离风力发电机约675 m使用多普勒激光雷达对其塔筒顶部进行扫描，记录频谱数据，利用基于离散频谱校正技术的测振频谱数据处理方法，提取风力发电机的振动状态参数；然后进行固定目标实测试验，使用相同的数据处理方式对回波信号进行处理，对激光雷达的实际误差进行评估。试验结果表明：相干多普勒激光雷达对风力发电机频率为0~2.5 Hz、振动速度为0.1~3 m/s的低频振动探测效果明显，具备探测风力发电机低频振动的能力。

Abstract

To achieve remote measurements of wind turbine vibration

a novel wind turbine state monitoring method was proposed in this study.Coherent Doppler lidar was used to detect low-frequency vibration of a wind turbine. The telemetry measurement

vibration spectrum data analysis

and all phenomena observed in the experiment were tested and studied. The measurement was divided into two parts.First

the top of the wind turbine was scanned via Doppler lidar at a distance of approximately 675 m

and vibration spectrum data were processed using discrete spectrum correction technology to extract the vibration state parameters.Second

a fixed target was measured

and the echo signal was processed using the same data processing method. Furthermore

system and measurement errors were evaluated. The results show that the coherent Doppler lidar is efficient at low-frequency vibration detection for a wind turbine with a vibration frequency of 0~2.5 Hz and a vibration speed of 0.1~3 m/s.

关键词

Keywords

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