Design optimization of wind turbine blades for reduction of airfoil self-noise

Lee, Seung‐Hoon; Lee, Soogab; Ryi, Jaeha; Choi, Jong‐Soo

doi:10.1007/s12206-012-1254-1

Cited by 21 publications

(7 citation statements)

References 7 publications

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“…Compared with the inverse design method [3][4][5][6][7], it is more convenient to use the direct numerical optimization method [11,20,[27][28][29][30] to solve multi-point optimization problems. Therefore, this paper chooses the direct method to achieve multi-point optimization for VSWT blades.…”

Section: The Multi-point Optimization Methods Considering the Maximum mentioning

confidence: 99%

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A Multi-Point Method Considering the Maximum Power Point Tracking Dynamic Process for Aerodynamic Optimization of Variable-Speed Wind Turbine Blades

Yang

Zhang

et al. 2016

Energies

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Due to the dynamic process of maximum power point tracking (MPPT) caused by turbulence and large rotor inertia, variable-speed wind turbines (VSWTs) cannot maintain the optimal tip speed ratio (TSR) from cut-in wind speed up to the rated speed. Therefore, in order to increase the total captured wind energy, the existing aerodynamic design for VSWT blades, which only focuses on performance improvement at a single TSR, needs to be improved to a multi-point design. In this paper, based on a closed-loop system of VSWTs, including turbulent wind, rotor, drive train and MPPT controller, the distribution of operational TSR and its description based on inflow wind energy are investigated. Moreover, a multi-point method considering the MPPT dynamic process for the aerodynamic optimization of VSWT blades is proposed. In the proposed method, the distribution of operational TSR is obtained through a dynamic simulation of the closed-loop system under a specific turbulent wind, and accordingly the multiple design TSRs and the corresponding weighting coefficients in the objective function are determined. Finally, using the blade of a National Renewable Energy Laboratory (NREL) 1.5 MW wind turbine as the baseline, the proposed method is compared with the conventional single-point optimization method using the commercial software Bladed. Simulation results verify the effectiveness of the proposed method.

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Section: The Multi-point Optimization Methods Considering the Maximum mentioning

confidence: 99%

“…It has been widely used for aerodynamic optimization of wind turbine blades [27][28][29][30]. In this work, the solver "ga-Genetic Algorithm" in the MATLAB optimization toolbox is applied to search the global optimal solution that maximizes the objective function.…”

Section: Optimization Schemementioning

confidence: 99%

A Multi-Point Method Considering the Maximum Power Point Tracking Dynamic Process for Aerodynamic Optimization of Variable-Speed Wind Turbine Blades

Yang

Zhang

et al. 2016

Energies

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“…Other authors have used unique objective functions, with Jeong et al [ 214 ] aiming to minimise the fluctuating flap wise bending moment of the blade in turbulent wind and Lee et al [ 215 ] minimising the noise produced by the airfoil of a 10 kW turbine.…”

Section: Turbine Mechanicsmentioning

confidence: 99%

Building a Digital Wind Farm

Hewitt

Margetts

Revell

2017

Arch Computat Methods Eng

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The purpose of this paper is to provide a high level, holistic overview of the work being undertaken in the wind energy industry. It summarises the main techniques used to simulate both aerodynamic and structural issues associated with wind turbines and farms. The motivation behind this paper is to provide new researchers with an outlook of the modelling and simulation landscape, whilst highlighting the trends and direction research is taking. Each section summarises an individual area of simulation and modelling, covering the important historical research findings and a comprehensive analysis of recent work. This segregated approach emphasises the key components of wind energy. Topics range in geometric scales and detail, ranging from atmospheric boundary layer modelling, to fatigue and fracture in the turbine blades. More recent studies have begun to combine a range of scales and physics to better approximate real systems and provide higher fidelity and accurate analyses to manufacturers and companies. This paper shows a clear trend towards coupling both scales and physics into singular models utilising high performance computing system.

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“…Two indispensable components of Eqs. (7) and (8) are the lift and drag coefficients. The lift and drag coefficients of each blade section must be known before calculating the interference factors a and b.…”

Section: Aerodynamic Modelmentioning

confidence: 99%

“…The wind tunnel experimental results showed that airfoil selfnoise is reduced by up to 2.6 Db [8]. With the development of wind turbine blades, Liu, Maki, Kwon, and Nam also made significant contributions to this field [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic shape optimized design for wind turbine blade using new airfoil series

Wang

Chen

et al. 2015

J Mech Sci Technol

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This paper introduces a new airfoil series to optimize the aerodynamic shape of wind turbine blades. It is verified that the CQU-A airfoil series exhibits high aerodynamic performance by using the wind tunnel experimental data and RFOIL. The geometry of a 2 MW wind turbine blade with new airfoil families is designed preliminarily based on the shape of Tjaereborg 2 MW rotor. A multi-objective optimized model combining the maximum power coefficient of the wind turbine with minimum area of the blade surface is proposed for the pitch regulated wind turbine. An optimized code is developed based on the corrected blade element momentum (BEM) theory and particle swarm optimization (PSO) algorithm. The optimization results show that, compared with that of the original rotor and the Tjaereborg rotor, not only the power coefficient and annual power production is improved, but also the area of the blade surface is reduced. The decreased area indicates that the mass of the optimized blades is reduced. It is beneficial for increasing the fatigue life and reducing cost of composite materials if the internal structure of the wind turbine blades is unchanged. Furthermore, the load of the blade root is effectively controlled by using this alternative optimization program.

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Design optimization of wind turbine blades for reduction of airfoil self-noise

Cited by 21 publications

References 7 publications

A Multi-Point Method Considering the Maximum Power Point Tracking Dynamic Process for Aerodynamic Optimization of Variable-Speed Wind Turbine Blades

A Multi-Point Method Considering the Maximum Power Point Tracking Dynamic Process for Aerodynamic Optimization of Variable-Speed Wind Turbine Blades

Building a Digital Wind Farm

Aerodynamic shape optimized design for wind turbine blade using new airfoil series

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