2022 Fiscal Year Final Research Report
Development of Mega Platform Technology for Large Scale Deployment of Offshore Wind Turbines
| Project/Area Number |
20H02367
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 24020:Marine engineering-related
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 浮体式洋上風車 / 巨大プラットフォーム / 流力弾性 / 複合荷重応答 / 連成応答解析 / 非線型波 |
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| Outline of Final Research Achievements |
The objective of this research project is to identify and solve technical issues in the case of deploying a large platform of the order of a few kilo-meters maximum for a large wind farm with floating offshore wind turbines. The following three major elemental studies were conducted: (1) simulation of floating structure under construction, using hydroelastic response analysis code and considering non-uniformity of the structures, (2) investigation of maintenance techniques using digital twin technology for response estimation and future prediction, and (3) clarification of the nonlinear behavior of large platforms under large extreme waves by using tank test measurement and theoretical developments. The possibility of simulating the building process of offshore platforms and O&M technology with digital twin technology was highlighted and demonstrated. In addition, the necessary analysis codes for each were developed.
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| Free Research Field |
船舶海洋工学
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| Academic Significance and Societal Importance of the Research Achievements |
内閣府により策定された第3期海洋基本計画は、洋上風力発電のポテンシャルの大きさを指摘し、洋上風力の最大限導入拡大と国民負担の抑制を両立するべく、発電コストを一層低減させつつ、更なる導入拡大を図ることを謳っている。2023年に第4期の海洋基本計画が閣議決定され、洋上風力発電所の設置場所をEEZまで広げる法整備を進めると明記された。今後、洋上風車ウィンドファームの実証プロジェクトが実現してくるものと思われる．本課題研究はウィンドファームへの巨大プラットフォーム利用を検討し，O&M基地の可能性を指摘した。研究の成果はEEZにおけるウィンドファーム展開にも役立つものと考えられる。
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