Analytical Performance Study of Fixed Speed Wind Turbine

Debbache, Mohammed; Derfouf, Semcheddine; Hamidat, A.; Guerira, Belhi; Karoua, H.

doi:10.3103/s0003701x18060063

Cited by 4 publications

(9 citation statements)

References 9 publications

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“…The analysis of wind turbines is based on the combination of analytical momentum theory and blade element theory [21]. This combination, known as BEM theory, was established by Gluaert to determine the driving torque and thrust force (defined in Equations ( 1) and (2), respectively) for each blade section, as defined by [21,22]. In reference to Figure 1, a and a are the axial and tangential induction factors, respectively, Ω represents the wind turbine rotation speed, V 1 is the wind speed, and r is the radial position.…”

Section: Blade Element Momentum Theorymentioning

confidence: 99%

“…In reference to Figure 1, a and a' are the axial and tangential induction factors, respectively, Ω represents the wind turbine rotation speed, V1 is the wind speed, and r is the radial position. According to the second theory of analysis, which is based on the aerodynamic flow, the torque and thrust are defined by [21,22]:…”

Section: Blade Element Momentum Theorymentioning

confidence: 99%

“…where B is the blade number, Cl and Cd are the lift and drag coefficient, respectively, and W represents the relative wind speed determined by [21,22]: According to the second theory of analysis, which is based on the aerodynamic flow, the torque and thrust are defined by [21,22]:…”

Section: Blade Element Momentum Theorymentioning

confidence: 99%

“…where B is the blade number, C l and C d are the lift and drag coefficient, respectively, and W represents the relative wind speed determined by [21,22]:…”

Section: Blade Element Momentum Theorymentioning

confidence: 99%

“…where F is the Prandtl tip and root correction coefficient, and ϕ is the flow angle. They are defined, respectively, by [21,22]:…”

Section: Blade Element Momentum Theorymentioning

confidence: 99%

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

et al. 2021

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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.

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Section: Blade Element Momentum Theorymentioning

confidence: 99%

Section: Blade Element Momentum Theorymentioning

confidence: 99%

Section: Blade Element Momentum Theorymentioning

confidence: 99%

“…where B is the blade number, C l and C d are the lift and drag coefficient, respectively, and W represents the relative wind speed determined by [21,22]:…”

Section: Blade Element Momentum Theorymentioning

confidence: 99%

“…where F is the Prandtl tip and root correction coefficient, and ϕ is the flow angle. They are defined, respectively, by [21,22]:…”

Section: Blade Element Momentum Theorymentioning

confidence: 99%

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