The Mooring Optimization and Hydrodynamic Characteristics of the Combined Concept of a 15 MW FOWT with WECs
To reduce the cost of offshore wind and wave power, an innovative combined wind–wave energy generation system constituting of a 15 MW semi-submersible floating offshore wind turbine (FOWT) and four torus-type wave energy converters (WECs) is proposed. A wholly coupled numerical model of aero-hydro-e...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/3/545 |
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| author | Yi Yang Shi Liu Xinran Guo Wen Chen Tao Tao Hao Wu Kai Wang |
| author_facet | Yi Yang Shi Liu Xinran Guo Wen Chen Tao Tao Hao Wu Kai Wang |
| author_sort | Yi Yang |
| collection | DOAJ |
| description | To reduce the cost of offshore wind and wave power, an innovative combined wind–wave energy generation system constituting of a 15 MW semi-submersible floating offshore wind turbine (FOWT) and four torus-type wave energy converters (WECs) is proposed. A wholly coupled numerical model of aero-hydro-elastic-servo-mooring was built to evaluate the mooring line and motion dynamics of this novel combined system. Additionally, a practical mooring optimization framework is proposed with the Latin Hypercube sampling method, Kriging model, and the combined optimization techniques of the Genetic Algorithm and Gradient Algorithm. The optimization results demonstrate that the optimized mooring scheme satisfies all the strict constraints, validating the effectiveness of the optimization method. Moreover, the hydrodynamic characteristics of the combined system and the effects of the WECs on the mooring system under both rated and extreme conditions are discussed, including changes in time-series mooring tension, power spectral density, and statistical characteristics. The research findings provide a reference for the further development and optimization of this novel combined system, contributing to the efficient utilization of offshore renewable energy. |
| format | Article |
| id | doaj-art-5e4a215cae3d481b8694ee0e4620f06e |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-5e4a215cae3d481b8694ee0e4620f06e2025-08-20T03:43:36ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-03-0113354510.3390/jmse13030545The Mooring Optimization and Hydrodynamic Characteristics of the Combined Concept of a 15 MW FOWT with WECsYi Yang0Shi Liu1Xinran Guo2Wen Chen3Tao Tao4Hao Wu5Kai Wang6China Southern Power Grid Technology Co., Ltd., Guangzhou 510080, ChinaChina Southern Power Grid Technology Co., Ltd., Guangzhou 510080, ChinaChina Southern Power Grid Technology Co., Ltd., Guangzhou 510080, ChinaChina Southern Power Grid Technology Co., Ltd., Guangzhou 510080, ChinaChina Southern Power Grid Technology Co., Ltd., Guangzhou 510080, ChinaSchool of Ocean Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, ChinaSchool of Ocean Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, ChinaTo reduce the cost of offshore wind and wave power, an innovative combined wind–wave energy generation system constituting of a 15 MW semi-submersible floating offshore wind turbine (FOWT) and four torus-type wave energy converters (WECs) is proposed. A wholly coupled numerical model of aero-hydro-elastic-servo-mooring was built to evaluate the mooring line and motion dynamics of this novel combined system. Additionally, a practical mooring optimization framework is proposed with the Latin Hypercube sampling method, Kriging model, and the combined optimization techniques of the Genetic Algorithm and Gradient Algorithm. The optimization results demonstrate that the optimized mooring scheme satisfies all the strict constraints, validating the effectiveness of the optimization method. Moreover, the hydrodynamic characteristics of the combined system and the effects of the WECs on the mooring system under both rated and extreme conditions are discussed, including changes in time-series mooring tension, power spectral density, and statistical characteristics. The research findings provide a reference for the further development and optimization of this novel combined system, contributing to the efficient utilization of offshore renewable energy.https://www.mdpi.com/2077-1312/13/3/545FOWTWECmooring optimizationhydrodynamic characteristicsWEC effect |
| spellingShingle | Yi Yang Shi Liu Xinran Guo Wen Chen Tao Tao Hao Wu Kai Wang The Mooring Optimization and Hydrodynamic Characteristics of the Combined Concept of a 15 MW FOWT with WECs Journal of Marine Science and Engineering FOWT WEC mooring optimization hydrodynamic characteristics WEC effect |
| title | The Mooring Optimization and Hydrodynamic Characteristics of the Combined Concept of a 15 MW FOWT with WECs |
| title_full | The Mooring Optimization and Hydrodynamic Characteristics of the Combined Concept of a 15 MW FOWT with WECs |
| title_fullStr | The Mooring Optimization and Hydrodynamic Characteristics of the Combined Concept of a 15 MW FOWT with WECs |
| title_full_unstemmed | The Mooring Optimization and Hydrodynamic Characteristics of the Combined Concept of a 15 MW FOWT with WECs |
| title_short | The Mooring Optimization and Hydrodynamic Characteristics of the Combined Concept of a 15 MW FOWT with WECs |
| title_sort | mooring optimization and hydrodynamic characteristics of the combined concept of a 15 mw fowt with wecs |
| topic | FOWT WEC mooring optimization hydrodynamic characteristics WEC effect |
| url | https://www.mdpi.com/2077-1312/13/3/545 |
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