カタマラン型浮体式洋上風車における潮流・波力エネルギー変換器統合の数値モデリング
Numerical Modelling of Integrated Tidal–Wave Energy Converters on a Catamaran Floating Offshore Wind Turbine (原題)
Joshua Cutler, Jie-Yi Ding, Yang Yang, Eda Majtan, M. Bashir
🤖 gxceed AI 要約
日本語
カタマラン型浮体式洋上風車（FOWT）に潮流タービンと波力変換器（WEC）を統合した複合再エネプラットフォームの動的性能を高忠実度数値モデルで評価。潮流統合型は出力を5.6〜10.1%増やし、サージ変動を28%低減。WEC統合型はヒーブ・ロール・ピッチ安定性を高め、最大680kWを達成。LCOE低減と海洋空間の有効活用に道を示す。
English
High-fidelity numerical models assess a catamaran floating offshore wind turbine integrated with tidal turbines and point-absorber wave energy converters. The tidal configuration adds 0.21–0.29 MW (5.6–10.1% output gain) and cuts surge variability by 28%; the WEC configuration improves heave/roll/pitch stability and reaches 680 kW peak array power. Hybrid integration can raise output and stability, lowering LCOE and optimizing marine space.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本はEEZ内での浮体式洋上風力導入と海洋空間の多目的利用を政策課題としており、本知見は国内の再エネ拡大・LCOE低減戦略に示唆を与える。ただしGX開示やSSBJ対応との直接の接点は乏しい。
In the global GX context
As global offshore wind scales toward net-zero, multi-source hybrid platforms offer a pathway to cut LCOE and ease marine spatial constraints. This adds engineering evidence to the transition-finance narrative that offshore renewables can be bankable at lower cost.
👥 読者別の含意
🔬研究者:浮体式洋上風力と海洋エネルギー統合の連成数値解析手法と安定性・出力評価の知見を提供する。
🏢実務担当者:洋上再エネ事業者はLCOE低減と海洋空間活用のための複合プラットフォーム設計の参考にできる。
🏛政策担当者:海洋空間計画や再エネ導入促進策において多目的利用型洋上プラットフォームの可能性を検討する材料となる。
📄 Abstract（原文）
The global transition toward net-zero emissions is accelerating innovation across the offshore renewable energy sector. Among emerging technologies, floating offshore wind turbines (FOWTs) offer exceptional potential for large-scale clean power generation. However, their substantial structural footprints present opportunities for multi-functional integration with complementary marine energy systems. This study investigates the technical feasibility and dynamic performance of a novel multi-source renewable platform: a catamaran-type FOWT integrated with both tidal and wave energy converters. High-fidelity numerical models are developed and validated for two subsystems, a dual-rotor tidal turbine arrangement and an array of point-absorber wave energy converters (WECs) based on the Wavestar concept. Each subsystem is separately coupled with a numerical model of a catamaran FOWT supporting the NREL 5 MW reference wind turbine. Fully coupled, time-domain simulations are conducted to evaluate power generation performance and hydrodynamic responses under representative offshore operational conditions for two hybrid configurations namely, the Catamaran with Tidal Turbines (CTT) and the Catamaran with WEC System (CWS). Simulation results confirm the technical viability and synergistic benefits of both configurations. The CTT concept delivers an additional 0.21-0.29 MW of power, enhancing total energy output by 5.6-10.1%, while the tidal turbines contribute beneficial hydrodynamic damping, reducing surge motion variability by 28%. For the CWS configuration, strong hydrodynamic coupling between the platform and WECs enhances stability in heave, roll, and pitch motions. Notably, a positive feedback mechanism is observed whereby platform pitch motion amplifies WEC energy capture, yielding a peak array power output of 680 kW. Overall, the findings demonstrate that hybrid is catamaran-based FOWTs with tidal and wave energy systems can simultaneously increase total power production and improve platform stability. This integrated approach provides a promising pathway for reducing the Levelized Cost of Energy (LCOE) and optimizing the use of marine space to advance the sustainable expansion of offshore renewable energy.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1115/omae2026-179528first seen 2026-10-01 05:20:01 · last seen 2026-10-02 05:19:01
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