Wind turbine performances prediction using BEM approach with Jonkman-Buhl brake state model coupled to CFD method

Laalej, Samah; Bouatem, Abdelfattah; AlMers, Ahmed; Elmaani, Rabii

doi:10.1016/j.matpr.2022.07.033

Cited by 6 publications

(2 citation statements)

References 19 publications

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“…The wind turbine considered in the present analysis is a horizontal axis three blades wind turbine. Its mathematical model relies on the Blade Element Method (BEM ) which considers a streamtube discretisation and evaluates the conservation of momentum in both axial and tangential directions [12,13]. Considering from [14,15] the airfoil aerodynamic characteristics, i.e., the lift and drag coefficients, it is possible to determine the thrust and torque operating on a blade element dr, at a distance r from the rotor axis:…”

Section: Wind Turbinementioning

confidence: 99%

Multi-obective performance analysis of a wind power plant equipped with a PAT system

Dambrosio

2023

J. Phys.: Conf. Ser.

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In conventional wind power plants, the wind turbine drives an electrical generator equipped with an AC/DC converter for battery charging purposes and with an inverter inverter to supply power to the grid / AC load. This approach exhibits some drawbacks like the energy losses associated to the power electronics and the cost and the waste management of the battery storage systems. To overcome such drawbacks, this work proposes a new plant scheme, where the battery system has been removed (or strongly reduced) and the storage task is accomplished by a pumping system equipped with a reversible hydraulic machinery which can operate both as centrifugal pump and a hydraulic turbine (called Pump as Turbine). In this scenario, when the wind velocity is quite high, the reversible hydraulic machinery, working as centrifugal pump, will store energy in the form of potential energy pumping fluid to an elevated water reservoir. On the contrary, in low wind conditions, the Pump as Turbine will operate as a hydraulic turbine, helping the wind turbine to overcome the external mechanical load. This solution results in a number of advantages: lower plant costs, longer Pump as Turbine life with lesser maintenance and reduced waste costs. The present work focuses on a multi-objective performance analysis of the proposed wind system power scheme. Specifically, this multi-objective sensitivity analysis will be addressed to the net potential energy stored by the reversible hydraulic machinery, the extracted wind energy and the torque supplied by the Pump as Turbine in hydraulic turbine mode. Such an analysis will considered as design variables the Pump as Turbine (centrifugal pump mode) specific speed (pump geometry), the gear box transmission ratio between the centrifugal pump and the wind turbine and the pump head. The aim of this analysis is to evaluate the design variables range which could lead to determine the set of the multi-objective wind systems optimal design.

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Section: Wind Turbinementioning

confidence: 99%

Multi-obective performance analysis of a wind power plant equipped with a PAT system

Dambrosio

2023

J. Phys.: Conf. Ser.

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“…Due to the large size of modern megawatt wind turbines, it is not viable to conduct fullscale experimental investigations to study the impact of the wake due to the limited sizes of wind tunnel facilities. On the other hand, analytical methods based on Blade Element Momentum (BEM) are still not suitable due to the high degree of approximation and simplification used in their development [9]. Therefore, numerical modelling approaches are considered more efficient due to the increasing computational capacity of modern supercomputers [10].…”

Section: Introductionmentioning

confidence: 99%

Qualitative Investigation of Wake Composition in Offshore Wind Turbines: A Combined Computational and Statistical Analysis of Inner and Outer Blade Sections

Siddiqui,

Badar,

Yang

et al. 2024

E3S Web Conf.

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High-fidelity numerical simulations are used to thoroughly analyze the evolution of the wake behind a megawatt-scale offshore wind turbine. The wake features are classified in terms of wake dynamics composition and the associated turbulence characteristics originating from the inner and outer sections of the blades. Understanding the wake is essential for developing compact layouts for future wind farms. We employed a transient Sliding Mesh Interface (SMI) technique to analyze the fully dynamic wake evolution of the offshore NREL 5MW full turbine. Our high-fidelity results have been validated against previously published results in the literature. We thoroughly investigated the dominant structures of the wake using Proper Orthogonal Decomposition (POD) techniques, which we applied to transient simulations of fully developed flows after five wind turbine revolutions over the snapshot data. Our findings show that the inner section of the blades, which is composed of airfoils with larger cross-sections, is responsible for the dominant components of the wake, while the contribution of the wake from the outer section of the blade is significantly lower. Therefore, designing more aerodynamic sections for the blade’s inner section can help reduce the dominant wake components and thus decrease the inter-turbine distance in future wind farms.

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Performance improvement of grid-connected wind energy conversion system through definite time horizon control and MPPT based on adaptive observers

Andaloussi,

Raihani,

Magri

et al. 2024

e-Prime - Advances in Electrical Engineering, Electronics and E

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Wind turbine performances prediction using BEM approach with Jonkman-Buhl brake state model coupled to CFD method

Cited by 6 publications

References 19 publications

Multi-obective performance analysis of a wind power plant equipped with a PAT system

Multi-obective performance analysis of a wind power plant equipped with a PAT system

Qualitative Investigation of Wake Composition in Offshore Wind Turbines: A Combined Computational and Statistical Analysis of Inner and Outer Blade Sections

Performance improvement of grid-connected wind energy conversion system through definite time horizon control and MPPT based on adaptive observers

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