2022 Fiscal Year Final Research Report
Development of a novel mooring-less offshore power generation system
| Project/Area Number |
20K21047
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 24:Aerospace engineering, marine and maritime engineering, and related fields
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| Research Institution | Osaka Metropolitan University (2022)
Osaka Prefecture University (2020-2021) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
松田 秋彦 国立研究開発法人水産研究・教育機構, 水産技術研究所(神栖), 主幹研究員 (10344334)
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| Project Period (FY) |
2020-07-30 – 2023-03-31
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| Keywords | 無係留発電浮体 / 洋上エネルギー基地 / 風力発電 / 水中タービン / 双胴型浮体 / 帆走シミュレーション / 大深度海域 |
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| Outline of Final Research Achievements |
In order to expand the deployment of offshore wind power utilization, a new offshore wind power generation system that does not require mooring and wind turbines was researched. Its features are 1. Catamaran type floating bodies requiring no mooring; 2. Power generation by towing an underwater turbine using wind drag acting on a sail; 3. Less directivity of the floating bodies and power generation to the wind direction; 4. Self-propelled function returning to the designated area. A trial design was made for this new offshore power generation system, and several ideas and specifications were proposed. Then, a scaled model was built, and a model experiment was carried out. It was confirmed that it sailed stably under the action of the wind. By conducting several experiments, a sailing simulation model of the offshore power generation system was developed and the expected amount of power generation and the sailing range when operated in the exclusive economic zone were clarified.
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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 |
再生可能エネルギーの中でも，洋上風力発電は賦存量が総体として極めて大きいことが知られているが，海底固着または係留を前提とする洋上風力発電は大深度海域での展開が困難である．この解決には抜本的な発想の転換が必要であり，風車を用いない新たな洋上風力発電システムの提案を行った．この従来とは一線を画する発想にもとづき，排他的経済水域での運用を想定した場合の期待発電量や帆走範囲までを示したことは，新規性や発展性の点で学術的な価値を有するものといえる．本発電浮体は，どのような海域でも運用が可能であることから，日本の広大な排他的経済水域の海底に眠る海底資源の探査や開発において重要な役割を果たすものとなる．
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