Kinematics of a vertical axis wind turbine with a variable pitch angle

Jakubowski, Marcel; Starosta, R.; Fritzkowski, Paweł

doi:10.1063/1.5019115

Cited by 2 publications

(2 citation statements)

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“…Pitch regulation plays a significant role in the aerodynamics of VAWTs. So far, much attention has been paid to power performance and aerodynamic behavior of VAWTs with fixed or variable pitch angles [25,26]. An increase of 22.6% in the power efficiency with variable pitch angles was found compared to that with fixed pitch angles [25].…”

Section: Introductionmentioning

confidence: 99%

“…So far, much attention has been paid to power performance and aerodynamic behavior of VAWTs with fixed or variable pitch angles [25,26]. An increase of 22.6% in the power efficiency with variable pitch angles was found compared to that with fixed pitch angles [25]. Moreover, related pitch strategies and pitch controllers were investigated and optimized as well [27].…”

Section: Introductionmentioning

confidence: 99%

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Flow Characteristics of a Straight-Bladed Vertical Axis Wind Turbine with Inclined Pitch Axes

Guo

Lei

2020

Energies

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Currently, vertical axis wind turbines (VAWT) are considered as an alternative technology to horizontal axis wind turbines in specific wind conditions, such as offshore farms. However, complex unsteady wake structures of VAWTs exert a significant influence on performance of wind turbines and wind farms. In the present study, instantaneous flow fields around and downstream of an innovative VAWT with inclined pitch axes are simulated by an actuator line model. Unsteady flow characteristics around the wind turbine with variations of azimuthal angles are discussed. Several fluid parameters are then evaluated on horizontal and vertical planes under conditions of various fold angles and incline angles. Results show that the total estimated wind energy in the shadow of the wind turbine with an incline angle of 30° and 150° is 4.6% higher than that with an incline angle of 90°. In this way, appropriate arrangements of wind turbines with various incline angles have the potential to obtain more power output in a wind farm.

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Section: Introductionmentioning

confidence: 99%