Optimization of dual-module floating photovoltaic arrays: layout configuration and damping mechanisms for enhanced stability and energy performance

dc.contributor.authorZheng, Zhi
dc.contributor.authorHu, Jianjian
dc.contributor.authorHuang, Qiang
dc.contributor.authorJin, Peng
dc.contributor.authorYang, Yifeng
dc.contributor.authorHuang, Luofeng
dc.contributor.authorZhou, Zhaomin
dc.contributor.authorZhou, Binzhen
dc.date.accessioned2025-06-02T11:09:51Z
dc.date.available2025-06-02T11:09:51Z
dc.date.freetoread2025-06-02
dc.date.issued2025-09-01
dc.date.pubOnline2025-06-02
dc.description.abstractFloating Photovoltaic (FPV) systems are a promising solution for offshore renewable energy, with modular FPV arrays offering significant potential for large-scale deployment. However, the development of FPV systems is hindered by insufficient understanding of their hydrodynamic performance, which affects stability and energy efficiency. This study proposes a dual-module FPV array combining box-type and semi-submersible modules to improve hydrodynamic stability under mild wave conditions in the South China Sea. The effects of array layout and PTO damping are examined under various wave conditions. The system is optimized to balance energy harvesting and motion control, and its performance is further evaluated under irregular waves at selected operational sites. Results indicate that the dual-module design effectively leverages the hydrodynamic characteristics of both module types, reducing motion responses and dynamic loads. The incorporation of optimal PTO damping further enhances system stability and energy efficiency by effectively suppressing pitch and heave motions, with maximum reductions of 31.43 % and 41.56 %, respectively, under the selected operational wave conditions. While damping remains effective under head-on waves, its performance slightly decreases under oblique waves, underscoring the importance of aligning the array with the predominant wave direction. Additionally, integrating a wave energy PTO system into the FPV array enables wave power to supplement solar energy, contributing 17.04 % of the total energy output at the selected operational sites. The proposed FPV system offers a practical solution for stabilizing floater motion, enhancing solar power generation, and capturing wave energy, advancing the feasibility of FPV technology for large-scale offshore applications.
dc.description.journalNameEnergy
dc.description.sponsorshipNational Natural Science Foundation of China (52222109, 52201322), Guangdong Basic and Applied Basic Research Foundation (2022B1515020036 and 2023A1515012144), Project of State Key Laboratory of Subtropical Building and Urban Science (2023ZB14).
dc.identifier.citationZheng Z, Hu J, Huang Q, et al., (2025) Optimization of dual-module floating photovoltaic arrays: layout configuration and damping mechanisms for enhanced stability and energy performance. Energy, Volume 330, September 2025, Article number 136879
dc.identifier.elementsID673548
dc.identifier.issn0360-5442
dc.identifier.paperNo136879
dc.identifier.urihttps://doi.org/10.1016/j.energy.2025.136879
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23954
dc.identifier.volumeNo330
dc.languageEnglish
dc.language.isoen
dc.publisherElsevier
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S0360544225025216?via%3Dihub
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectEnergy
dc.subject4008 Electrical engineering
dc.subject4012 Fluid mechanics and thermal engineering
dc.subject4017 Mechanical engineering
dc.titleOptimization of dual-module floating photovoltaic arrays: layout configuration and damping mechanisms for enhanced stability and energy performance
dc.typeArticle
dcterms.dateAccepted2025-05-28

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