Wind Blade Twist Correction for Enhanced Annual Energy Production of Wind Turbines

Mohammed Debbache, Messaoud Hazmoune, Semcheddine Derfouf, Dana-Alexandra Ciupageanu and Gheorghe Lazaroiu
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Mohammed Debbache: Centre de Developpement des Energies Renouvelables BP. 62 Route de l’Observatoire Bouzareah, Alger 16340, Algeria
Messaoud Hazmoune: Centre de Developpement des Energies Renouvelables BP. 62 Route de l’Observatoire Bouzareah, Alger 16340, Algeria
Semcheddine Derfouf: Université Batna 2, Batna 05078, Algeria
Dana-Alexandra Ciupageanu: Energy Generation and Use Department, Power Engineering Faculty, University Politehnica of Bucharest, 060042 Bucharest, Romania
Gheorghe Lazaroiu: Energy Generation and Use Department, Power Engineering Faculty, University Politehnica of Bucharest, 060042 Bucharest, Romania

Sustainability, 2021, vol. 13, issue 12, 1-17

Abstract: Blade geometry is an important design parameter that influences global wind turbine energy harvesting performances. The geometric characteristics of the blade profile are obtained by determining the distribution of the chord and twist angle for each blade section. In order to maximize the wind energy production, implying a maximum lift-to-drag ratio for each wind speed, this distribution should be optimized. This paper presents a methodology to numerically determine the change in the twist angle by introducing a range of pitch angles for the maximum power coefficient case. The obtained pitch values were distributed from the root to the tip of blade. The results prove that the power coefficient increases for wind speeds greater than the rated point, which improves the yearly production of energy by 5% compared to the reference case.

Keywords: aerodynamic; pitch; thrust; torque; twist; wind blade (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:12:p:6931-:d:578290

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