海上风电筒型基础结构体系阻尼特性研究

doi:10.19912/j.0254-0096.tynxb.2021-0341

太阳能学报 ›› 2022, Vol. 43 ›› Issue (11): 285-291.DOI: 10.19912/j.0254-0096.tynxb.2021-0341

海上风电筒型基础结构体系阻尼特性研究

姜军倪^1,2, 董霄峰^1,2, 练继建^1~3, 王海军^1,2, 周欢^1,2

1.天津大学水利工程仿真与安全国家重点实验室,天津 300072;
2.天津大学建筑工程学院,天津 300072;
3.河北工程大学水利水电学院,邯郸 056038

收稿日期:2021-03-31 出版日期:2022-11-28 发布日期:2023-05-28
通讯作者: 练继建（1965—）,男,博士、教授,主要从事水利水电工程安全与风电结构静动力特性方面的研究。jjlian@tju.edu.cn
基金资助:
国家自然科学基金联合基金重点支持项目（U20A20316）; 河北省自然科学基金创新研究群体项目（E2020402074）

RESEARCH ON DAMPING CHARACTERISTICS OF OFFSHORE WIND TURBINE SYSTEM SUPPORTED BY BUCKET FOUNDATION

Jiang Junni^1,2, Dong Xiaofeng^1,2, Lian Jijian^1~3, Wang Haijun^1,2, Zhou Huan^1,2

1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;
2. School of Civil Engineering, Tianjin University, Tianjin 300072, China;
3. School of Water Conservancy and Hydropower, Hebei University of Engineering, Handan 056038, China

Received:2021-03-31 Online:2022-11-28 Published:2023-05-28

摘要/Abstract

摘要： 针对某筒型基础海上风电结构,基于实测振动响应数据,采用随机子空间法对所测海上风电结构的阻尼进行识别,研究海上风电筒型基础结构在停机及运行状态下阻尼的变化规律。结果表明：在停机状态下,海上风电筒型基础结构的顺风向阻尼和横风向阻尼均随外界风速的增大呈增长趋势,两者的平均值分别为0.952%和0.973%;当风电机组处于运行状态时,顺风向运行阻尼随外界风速的增大呈增长趋势,阻尼平均值在3.87%~5.28%之间变化,而对于横风向运行阻尼,其变化趋势受外界因素的影响较小,阻尼平均值在整个风速范围内在1.74%~3.37%之间变化,横风向运行阻尼小于顺风向运行阻尼。

关键词: 海上风电, 振动测试, 阻尼, 筒型基础, 随机子空间法

Abstract: For an offshore wind turbine supported by bucket foundation, based on the measured vibration data on site, the stochastic subspace identification method was used to identify the damping of the measured offshore wind turbine structure, and the damping characteristics of the offshore wind turbine supported by bucket foundation under parked and operational conditions were studied. The results show that： in parked conditions, the along-wind and cross-wind damping of the offshore wind turbine supported by bucket foundation both increase with the increase of external wind speed, and the average values of these are 0.952% and 0.973%, respectively; in operational conditions, the along-wind damping shows an increasing trend with the increase of external wind speed, and its average damping value varies within the range of 3.87%-5.28%. For the cross-wind damping, its change trend is less affected by the external factors. The average value of cross-wind damping varies from 1.74% to 3.37% in the entire wind speed range, and the cross-wind damping is smaller than the along-wind damping under operational conditions.

Key words: offshore wind power, vibration measurement, damping, bucket foundation, stochastic subspace identification

中图分类号:

TK83

姜军倪, 董霄峰, 练继建, 王海军, 周欢. 海上风电筒型基础结构体系阻尼特性研究[J]. 太阳能学报, 2022, 43(11): 285-291.

Jiang Junni, Dong Xiaofeng, Lian Jijian, Wang Haijun, Zhou Huan. RESEARCH ON DAMPING CHARACTERISTICS OF OFFSHORE WIND TURBINE SYSTEM SUPPORTED BY BUCKET FOUNDATION[J]. Acta Energiae Solaris Sinica, 2022, 43(11): 285-291.

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海上风电筒型基础结构体系阻尼特性研究

RESEARCH ON DAMPING CHARACTERISTICS OF OFFSHORE WIND TURBINE SYSTEM SUPPORTED BY BUCKET FOUNDATION

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