Lyapunov-Based Framework for Platform Motion Control of Floating Offshore Wind Turbines
Floating offshore wind turbines (FOWTs) unlock superior wind resources and reduce operational barriers. The dynamics of FOWT platforms present added engineering challenges and opportunities. While the motion of the floating platform due to wind and wave disturbances can worsen power quality and incr...
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MDPI AG
2025-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/15/3969 |
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| author | Mandar Phadnis Lucy Pao |
| author_facet | Mandar Phadnis Lucy Pao |
| author_sort | Mandar Phadnis |
| collection | DOAJ |
| description | Floating offshore wind turbines (FOWTs) unlock superior wind resources and reduce operational barriers. The dynamics of FOWT platforms present added engineering challenges and opportunities. While the motion of the floating platform due to wind and wave disturbances can worsen power quality and increase structural loading, certain movements of the floating platform can be exploited to improve power capture. Consequently, active FOWT platform control methods using conventional and innovative actuation systems are under investigation. This paper develops a novel framework to design nonlinear control laws for six degrees-of-freedom platform motion. The framework uses simplified rigid-body analytical models of the FOWT. Lyapunov’s direct method is used to develop actuator-agnostic unconstrained control laws for platform translational and rotational control. A model based on the NREL-5MW reference turbine on the OC3-Hywind spar-buoy platform is utilized to test the control framework for an ideal actuation scenario. Possible applications using traditional and novel turbine actuators and future research directions are presented. |
| format | Article |
| id | doaj-art-601ad51573a6468aa46485e8d3e3f1bc |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-601ad51573a6468aa46485e8d3e3f1bc2025-08-20T03:36:31ZengMDPI AGEnergies1996-10732025-07-011815396910.3390/en18153969Lyapunov-Based Framework for Platform Motion Control of Floating Offshore Wind TurbinesMandar Phadnis0Lucy Pao1College of Engineering and Applied Science, University of Colorado Boulder, Boulder, CO 80309, USACollege of Engineering and Applied Science, University of Colorado Boulder, Boulder, CO 80309, USAFloating offshore wind turbines (FOWTs) unlock superior wind resources and reduce operational barriers. The dynamics of FOWT platforms present added engineering challenges and opportunities. While the motion of the floating platform due to wind and wave disturbances can worsen power quality and increase structural loading, certain movements of the floating platform can be exploited to improve power capture. Consequently, active FOWT platform control methods using conventional and innovative actuation systems are under investigation. This paper develops a novel framework to design nonlinear control laws for six degrees-of-freedom platform motion. The framework uses simplified rigid-body analytical models of the FOWT. Lyapunov’s direct method is used to develop actuator-agnostic unconstrained control laws for platform translational and rotational control. A model based on the NREL-5MW reference turbine on the OC3-Hywind spar-buoy platform is utilized to test the control framework for an ideal actuation scenario. Possible applications using traditional and novel turbine actuators and future research directions are presented.https://www.mdpi.com/1996-1073/18/15/3969floating offshore wind turbinewind turbine controlLyapunov methods |
| spellingShingle | Mandar Phadnis Lucy Pao Lyapunov-Based Framework for Platform Motion Control of Floating Offshore Wind Turbines Energies floating offshore wind turbine wind turbine control Lyapunov methods |
| title | Lyapunov-Based Framework for Platform Motion Control of Floating Offshore Wind Turbines |
| title_full | Lyapunov-Based Framework for Platform Motion Control of Floating Offshore Wind Turbines |
| title_fullStr | Lyapunov-Based Framework for Platform Motion Control of Floating Offshore Wind Turbines |
| title_full_unstemmed | Lyapunov-Based Framework for Platform Motion Control of Floating Offshore Wind Turbines |
| title_short | Lyapunov-Based Framework for Platform Motion Control of Floating Offshore Wind Turbines |
| title_sort | lyapunov based framework for platform motion control of floating offshore wind turbines |
| topic | floating offshore wind turbine wind turbine control Lyapunov methods |
| url | https://www.mdpi.com/1996-1073/18/15/3969 |
| work_keys_str_mv | AT mandarphadnis lyapunovbasedframeworkforplatformmotioncontroloffloatingoffshorewindturbines AT lucypao lyapunovbasedframeworkforplatformmotioncontroloffloatingoffshorewindturbines |