海上风电场运营期水下噪声测量及特性初步分析

牛富强1,2, 杨燕明1, 许肖梅2, 周在明1, 黄跃坤1

振动与冲击 ›› 2016, Vol. 35 ›› Issue (12) : 215-220.

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (12) : 215-220.
论文

海上风电场运营期水下噪声测量及特性初步分析

  • 牛富强1,2, 杨燕明1, 许肖梅2, 周在明1, 黄跃坤1
作者信息 +

Measurements and analysis of underwater noise from operation of offshore wind farms

  • Niu Fuqiang1,2, Yang Yanming1, Xu Xiaomei2, Zhou Zaiming1,Huang Yuekun1
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摘要

海上风电场运营期间产生的水下噪声影响了海洋生态环境。针对国内对风机水下噪声定量研究的缺乏,测量分析了海上风电场运营期单机容量3.0MW和5.0MW风机产生的水下噪声,并利用简正波模型仿真噪声分布。数据处理结果表明,风机产生的水下噪声强度较低,集中分布在800Hz以下的低频段,噪声谱具有主频特性,高风速下主频更加明显。噪声强度随风速的增加而增大,而与风机功率差异不明显;噪声谱主频分布与风机功率、风速、桩基结构等有关。总体看,单个风机运营期间产生的水下噪声对海洋生态环境影响区域小。现场测量数据及结果可为海上风电工程环境影响评价提供技术参考,具有较大的工程应用价值。

Abstract

Underwater noise from operation of offshore wind farms has impacted on the marine environment. Underwater noise was recorded from one 3.0MW and one 5.0 MW wind turbine in shang hai during normal operation phase in this paper. At last, a normal mode propagation model was designed to predict noise distribution of wind turbines. The results of data processing show noise during operation are much lower intensity, and generally dominated by a series of pure tones below 800 Hz. The dominating frequencies become obvious at high wind speed. The sound intensity increase with wind speed, but have not significant difference with the power of wind turbines. In addition, the frequency content of noise seem to change with power of wind turbines, wind speed and foundation type. The zones of noise impact on marine environment are small during operation of wind farms. The results of paper can provide technical reference for environmental impact assessment of offshore wind farms and have great value in engineering application.

关键词

海上风电场 / 水下噪声 / 噪声测量 / 运营期

Key words

off-shore wind farm / underwater noise / noise measurement / operation phase

引用本文

导出引用
牛富强1,2, 杨燕明1, 许肖梅2, 周在明1, 黄跃坤1. 海上风电场运营期水下噪声测量及特性初步分析[J]. 振动与冲击, 2016, 35(12): 215-220
Niu Fuqiang1,2, Yang Yanming1, Xu Xiaomei2, Zhou Zaiming1,Huang Yuekun1. Measurements and analysis of underwater noise from operation of offshore wind farms[J]. Journal of Vibration and Shock, 2016, 35(12): 215-220

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