Multidisciplinary design analysis and optimisation frameworks for floating offshore wind turbines: State of the art

Patryniak, Katarzyna; Collu, Maurizio; Coraddu, Andrea

doi:10.1016/j.oceaneng.2022.111002

Cited by 18 publications

(10 citation statements)

References 82 publications

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“…Through these endeavors, the aim is to create resilient and efficient solutions that contribute significantly to the expansion of offshore renewable energy sources. [101].…”

Section: Table 3 Comparison Of Offshore Wind Turbine Foundation Typesmentioning

confidence: 99%

Winds of Progress: An In-Depth Exploration of Offshore, Floating, and Onshore Wind Turbines as Cornerstones for Sustainable Energy Generation and Environmental Stewardship

Khan Afridi,

Ali Koondhar,

Ismail Jamali

et al. 2024

IEEE Access

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This research paper conducts an extensive exploration of onshore, offshore, and floating offshore wind turbines, pivotal components in the landscape of sustainable energy generation. The study thoroughly investigates various wind energy systems, shedding light on their distinct attributes, advantages, and limitations. The examination of onshore wind turbines encompasses aspects such as installation procedures, size considerations, wind dynamics, accessibility challenges, and visual impact assessments. Similarly, the analysis of offshore wind turbines covers considerations such as location selection, installation complexities, size variations, wind conditions, environmental impacts, and visual aesthetics. The paper also delves into the emerging technology of floating offshore wind turbines, highlighting their unique features, advantages, and technological advancements. A thorough comparative examination is conducted to assess the economic, environmental, and social aspects of onshore, offshore, and floating offshore wind turbines. The research paper concludes by offering insights into policy considerations, addressing research gaps, and outlining prospects for the seamless integration and advancement of these diverse wind energy systems. This comprehensive review aspires to contribute to the existing knowledge base in sustainable energy generation, fostering informed decision-making for a greener and more sustainable future.

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“…Through these endeavors, the aim is to create resilient and efficient solutions that contribute significantly to the expansion of offshore renewable energy sources. [101].…”

Section: Table 3 Comparison Of Offshore Wind Turbine Foundation Typesmentioning

confidence: 99%

Winds of Progress: An In-Depth Exploration of Offshore, Floating, and Onshore Wind Turbines as Cornerstones for Sustainable Energy Generation and Environmental Stewardship

Khan Afridi,

Ali Koondhar,

Ismail Jamali

et al. 2024

IEEE Access

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“…The FD dynamic model is based on the Multidisciplinary Design Analysis methodology previously presented by the authors [8], with different disciplines solved by specialised routines coupled in a numerical framework. The FD approach offers the efficiency needed for fatigue analysis, as the alternative time-domain approach can be prohibitively expensive when performing multiple simulations for the full range of environmental conditions and random realisations [6].…”

Section: Frequency-domain Model Of Dynamicsmentioning

confidence: 99%

Efficient design space exploration for spar Floating Offshore Wind Turbines: the trilemma of the ultimate, fatigue, and serviceability limit states

Patryniak,

Yeter,

Collu

et al. 2024

J. Phys.: Conf. Ser.

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Floating Offshore Wind Turbines (FOWT) can harness the abundant wind resource in deep-water offshore conditions. However, they face challenges in harsh, unsheltered marine environments. The mean hydro- and aerodynamic loads coupled with fluctuating stochastic wind and wave loads contribute to varied failure mechanisms. Therefore, the serviceability, ultimate, and fatigue limit states are vital in ensuring the safety and reliability of FOWT. This paper investigates how specific loads and states drive the design of a spar-type support structure, utilising a computationally efficient frequency-domain model. This approach combines quasi-static aerodynamic and mooring models with a potential-theory-based radiation-diffraction solver. The serviceability criteria concern the platform and tower top displacements and accelerations. The ultimate and fatigue limit states are assessed for the tower base, the waterline section, and the mooring lines, including the effects of yielding under the bending moment and compressive axial load, column buckling, and tension-tension effects in the mooring lines. The full factorial design of experiments is employed to investigate the non-trivial relationships between the limit states and the various features of the support structure. The results demonstrate that the design of the spar platform above the waterline is mainly driven by fatigue, which results from significant dynamic tilt and increased stress concentration at the platform-tower intersection. On the other hand, the catenary mooring lines’ design is mainly driven by the requirements of maximum offset (serviceability limit state) and fatigue.

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“…The coupled multidisciplinary frameworks developed up to date were extensively reviewed in [3]. Due to the high computational cost, fully-coupled time-domain models of dynamics are not usually applied in highly iterative studies such as the parameter sweep or design optimisation.…”

Section: State Of the Artmentioning

confidence: 99%

“…However, the dynamics of the FOWT system involve a larger variety of distinct and highly coupled disciplines, including the interaction between the vast aerodynamic and hydrodynamic loads. Although many of the optimisation frameworks successfully reflected the most critical coupling effects [3], some of the important interactions are often either not considered or modelled as one-way relationships due to prohibitively long simulation times.…”

Section: Introductionmentioning

confidence: 99%

Multidisciplinary Design Analysis and Optimisation of Floating Offshore Wind Turbine Support Structures - Coupled Model Solution Strategies

Patryniak,

Collu,

Coraddu

2023

J. Phys.: Conf. Ser.

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Floating Offshore Wind Turbines (FOWT) can be installed at the sites of the most abundant wind resource. However, the design uncertainties and risks must be reduced to make them economically competitive. The design and optimisation methodologies for FOWT support structures adopted up to date tend to follow a sequential analysis strategy. Since the FOWT system involves multiple distinct, highly coupled disciplines, its analysis and design are challenging. This paper presents an efficient implementation of a coupled model of dynamics in an optimisation process by applying a Multidisciplinary Design Analysis and Optimisation (MDAO) methodology. The coupling effects studied include the interdependence of the mean offset of the platform and the aerodynamic and mooring loads, as well as the velocity of the platform and the viscous damping. The trade-off between the solution accuracy and efficiency for the coupled and uncoupled models was quantified, and a range of iterative solvers were compared. The study showed that the coupling between the platform offset and the mooring and thrust loads has a significant influence on the values of the responses, converging at higher surge and pitch offsets, higher mooring loads, and at lower thrust. These non-conservative results demonstrated the criticality of the two-way coupling between the platform excursion and the mooring loads. Notably, the coupled solution was achieved at a relatively low increase in the total solution time (+16%), due to the high efficiency of Broyden’s method.

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Multidisciplinary design analysis and optimisation frameworks for floating offshore wind turbines: State of the art

Cited by 18 publications

References 82 publications

Winds of Progress: An In-Depth Exploration of Offshore, Floating, and Onshore Wind Turbines as Cornerstones for Sustainable Energy Generation and Environmental Stewardship

Winds of Progress: An In-Depth Exploration of Offshore, Floating, and Onshore Wind Turbines as Cornerstones for Sustainable Energy Generation and Environmental Stewardship

Efficient design space exploration for spar Floating Offshore Wind Turbines: the trilemma of the ultimate, fatigue, and serviceability limit states

Multidisciplinary Design Analysis and Optimisation of Floating Offshore Wind Turbine Support Structures - Coupled Model Solution Strategies

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