Tip Speed Ratio Optimization: More Energy Production with Reduced Rotor Speed
Wind, 2022 A wind turbine’s tip speed ratio (TSR) is the linear speed of the blade’s tip, normalized by the incoming wind speed. For a given blade profile, there is a TSR that maximizes the turbine’s efficiency. The industry’s current practice is to impose the same
Amir Hosseini +2 more
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Inverse Aerodynamic Optimization Considering Impacts of Design Tip Speed Ratio for Variable-Speed Wind Turbines [PDF]
Energies, 2016 Because of the slow dynamic behavior of the large-inertia wind turbine rotor, variable-speed wind turbines (VSWTs) are actually unable to keep operating at the design tip speed ratio (TSR) during the maximum power point tracking (MPPT) process. Moreover,
Zhiqiang Yang +5 more
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Assessment of Optimum Tip Speed Ratio of Wind Turbines [PDF]
Mathematical and Computational Applications, 2005 The first thing to do in wind turbine blade design is to select tip speed ratio. Generally speaking, the speed ratio depends on the profile type used and the number of blades. Various speed ratios could be chosen for different types of profiles with different number of blades.
Rasit Ata
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Numerical Assesment of a Small-Scale and Very Low Tip Speed Ratio Wind Turbine [PDF]
E3S Web of Conferences, 2021 The aim of this paper is to study by CFD the performance and to characterize the velocity fields in the wake of an horizontal axis wind turbine. The design of this wind turbine is far from classical as it has been designed to work at very low angular ...
Bourhis Martin +3 more
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Study on flow around straight-bladed vertical axis wind turbine under low tip speed ratio
Journal of Fluid Science and Technology, 2014 The flow field around a vertical axis wind turbine (VAWT) is very complicated because the blades pass in non-uniform flow field by the blade wake during rotation.
Qing'an LI +5 more
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Modelling the Wind Turbine by Using the Tip-Speed Ratio for Estimation and Control
Energies, 2022 The development of dynamic models for control purposes is characterised by the challenge of finding a compromise between the minimum necessary information about the system dynamics contained in the model and a model with a low level of complexity such that the model-based control system design becomes comfortable.
Adrian Gambier, Gambier Adrian
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Development of a Large-Scale High-Speed Linear Cascade Rig for Turbine Blade Tip Heat Transfer Study
Aerospace, 2022 The high-speed Over-Tip-Leakage (OTL) flow has a significant impact on the aerodynamic performance of the High-Pressure Turbine (HPT) passage and generates high thermal load for the blade tip.
Hongmei Jiang +4 more
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Variable Pitch Approach for Performance Improving of Straight-Bladed VAWT at Rated Tip Speed Ratio
Applied Sciences, 2018 This paper presents a new variable pitch (VP) approach to increase the peak power coefficient of the straight-bladed vertical-axis wind turbine (VAWT), by widening the azimuthal angle band of the blade with the highest aerodynamic torque, instead of ...
Zhenzhou Zhao +6 more
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Aerodynamic Separability in Tip Speed Ratio and Separability in Wind Speed- a Comparison [PDF]
Journal of Physics: Conference Series, 2014 From extensive application over a number of years, it has been established that the nonlinear rotor aerodynamics of typical medium and large wind turbines exhibit an effectively global separability property. Two versions of the separability of aerodynamic torque for variable speed wind turbines are investigated here; the separated function, related to ...
Gala Santos, M L +2 more
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Optimal performance of actuator disc models for horizontal-axis turbines
Frontiers in Energy Research, 2022 This study analyzes actuator disc (AD) models of horizontal-axis turbines to determine optimal performance, defined as the maximum power extracted at any tip speed ratio.
David H. Wood, Mohamed M. Hammam
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