海上风电机组格构式浮式基础结构优化及响应分析

doi:10.11930/j.issn.1004-9649.202107118

中国电力 ›› 2022, Vol. 55 ›› Issue (5): 21-31.DOI: 10.11930/j.issn.1004-9649.202107118

海上风电机组格构式浮式基础结构优化及响应分析

王宇航^1,2, 王文玲^1,2, 周绪红^1,2, 王康^1,2, 罗崯滔^1,2

1. 重庆大学土木工程学院，重庆 400045;
2. 重庆大学钢结构工程研究中心，重庆 400045

收稿日期:2021-07-24 修回日期:2022-03-07 出版日期:2022-05-28 发布日期:2022-05-18
作者简介:王宇航（1985—），男，博士，教授，从事新型风电结构、钢结构及组合结构研究，E-mail：wangyuhang@cqu.edu.cn;王文玲（1997—），女，硕士研究生，从事新型风电结构研究，E-mail：809105249@qq.com;周绪红（1956—），男，博士，中国工程院院士，从事钢结构和组合结构研究，E-mail：zhouxuhong@126.com;王康（1996—），男，通信作者，博士研究生，从事钢-混凝土组合结构、风电结构研究，E-mail： wangkang. cqu@foxmail.com;罗崯滔（1998—），男，硕士研究生，从事新型风电结构研究，E-mail：463851607@qq.com
基金资助:
霍英东教育基金会青年教师基金资助项目（171066）；国家自然科学基金资助项目（51822804）。

Optimization and Response Analysis of Floating Truss Foundation for Offshore Wind Turbine

WANG Yuhang^1,2, WANG Wenling^1,2, ZHOU Xuhong^1,2, WANG Kang^1,2, LUO Yintao^1,2

1. School of Civil Engineering, Chongqing University, Chongqing 400045, China;
2. Research Center for Steel Structure Engineering, Chongqing University, Chongqing 400045, China

Received:2021-07-24 Revised:2022-03-07 Online:2022-05-28 Published:2022-05-18
Supported by:
This work is supported by the Young Teachers Fund of Fok Ying Tung Education Foundation (No.171066), National Natural Science Foundation of China (No.51822804).

摘要/Abstract

摘要： 面对日益严峻的环境问题，优化浮式基础结构形式成为海上风电降本增效的一大途径。对一种具有双重抗摇摆机制的新型格构式浮式基础进行结构优化，通过格构式塔架不同布置形式的参数化分析，寻找最适合格构式浮式基础的系杆布置形式，同时对优化后格构式浮式基础进行水动力响应分析，验证优化方案可行性。结果表明：在格构式系杆布置方面，斜向系杆与角柱的角度不宜设置较大；减少横杆、增大斜杆截面面积能够更有效地提升结构抗侧刚度和承载能力。优化后的浮式基础受力性能优于原格构式浮式基础，大大提高了格构式浮式基础结构的经济性，同时其各自由度上固有周期均远大于典型波浪周期，具有良好的耐波性。

关键词: 海上风电机组, 浮式风机, 格构式基础, 塔架形式, 结构优化, 水动力特性

Abstract: In the context of increasingly severe environmental problems, optimizing the form of floating foundations becomes a major way for offshore wind engineering to reduce costs and increase efficiency. This study optimized the structure of a new floating truss foundation for a wind turbine with dual anti-sway mechanisms and conducted the parametric analysis of the different layout forms of the truss structure to find the most suitable tie rod layout form for the floating truss foundation. At the same time, the hydrodynamic response analysis of the optimized floating truss foundation was carried out to verify the feasibility of the optimized scheme. The results showed that in terms of the tie rod layout of the truss, the angle between the diagonal tie rod and the corner column should not be set to a large value, and reducing the cross-sectional area of horizontal tie rods and increasing that of diagonal tie rods could more effectively improve the lateral stiffness and load-bearing capacity of the structure. After optimization, the force performance of the floating foundation is better than that of the original floating truss foundation, and the economical efficiency of floating truss foundation is enhanced greatly. Meanwhile, its natural period on each degree of freedom is much larger than the typical wave period, which indicated a good seakeeping performance.

Key words: offshore wind turbine, floating wind turbine, truss foundation, tower form, structural optimization, hydrodynamic characteristics

王宇航, 王文玲, 周绪红, 王康, 罗崯滔. 海上风电机组格构式浮式基础结构优化及响应分析[J]. 中国电力, 2022, 55(5): 21-31.

WANG Yuhang, WANG Wenling, ZHOU Xuhong, WANG Kang, LUO Yintao. Optimization and Response Analysis of Floating Truss Foundation for Offshore Wind Turbine[J]. Electric Power, 2022, 55(5): 21-31.

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海上风电机组格构式浮式基础结构优化及响应分析

Optimization and Response Analysis of Floating Truss Foundation for Offshore Wind Turbine

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