Characterization of atmospheric coherent structures and their impact on a utility-scale wind turbine [PDF]
arXiv, 2021 Atmospheric turbulent velocity fluctuations are known to increase wind turbine structural loading and accelerate wake recovery, but the impact of vortical coherent structures in the atmosphere on wind turbines has not yet been evaluated. The current study uses flow imaging with natural snowfall with a field of view spanning the inflow and near wake ...
arxiv
Replacing wakes with streaks in wind turbine arrays [PDF]
arXiv, 2020 Wind turbine wakes negatively impact downwind turbines in wind farms reducing their global efficiency. The reduction of wake-turbine interactions by actuating control on yaw angles and induction factors is an active area of research. In this study, the capability of spanwise-periodic wind turbine arrays with tilted rotors to reduce negative turbine ...
arxiv
Digital Twin Framework for Time to Failure Forecasting of Wind Turbine Gearbox: A Concept [PDF]
arXiv, 2022 Wind turbine is a complex machine with its rotating and non-rotating equipment being sensitive to faults. Due to increased wear and tear, the maintenance aspect of a wind turbine is of critical importance. Unexpected failure of wind turbine components can lead to increased O\&M costs which ultimately reduces effective power capture of a wind farm ...
arxiv
Comparison of horizontal axis wind turbine (HAWT) and vertical axis wind turbine (VAWT)
, 2018 As the demand for green technology is rising rapidly worldwide, it is important that Malaysian researchers take advantage of Malaysia’s windy climates and areas to initiate more power generation projects using wind.
Muhd Khudri Johari, M. Jalil, M. Shariff
semanticscholar +1 more source
Development of a mobile robot assistant for wind turbines manufacturing [PDF]
arXiv, 2022 The thrust for increased rating capacity of wind turbines has resulted into larger generators, longer blades, and taller towers. Presently, up to 16 MW wind turbines are being offered by wind turbines manufacturers which is nearly a 60 percent increase in the design capacity over the last five years.
arxiv
Methods for Advanced Wind Turbine Condition Monitoring and Early Diagnosis: A Literature Review
, 2018 Condition monitoring and early fault diagnosis for wind turbines have become essential industry practice as they help improve wind farm reliability, overall performance and productivity.
Liton Hossain, A. Abu‐Siada, S. Muyeen
semanticscholar +1 more source
Performance enhancement of a 100 watts class Tesla turbine [PDF]
arXiv, 2023 Tesla turbines are an attractive but less explored area in low-power applications. This article presents an experimental investigation of a centimeter scale Tesla turbine in bi and unidirectional outlet configuration with compressed air at 6 bar. The turbine's performance is enhanced by approximately 38% for a unidirectional outlet configuration ...
arxiv
Bayesian spline method for assessing extreme loads on wind turbines [PDF]
Annals of Applied Statistics 2013, Vol. 7, No. 4, 2034-2061, 2014 This study presents a Bayesian parametric model for the purpose of estimating the extreme load on a wind turbine. The extreme load is the highest stress level imposed on a turbine structure that the turbine would experience during its service lifetime.
arxiv +1 more source
Nonlinear Model Predictive Control of Variable Speed Hydropower for Provision of Fast Frequency Reserves [PDF]
arXiv, 2020 This paper presents the development of a non-linear model predictive controller (MPC) for controlling variable speed hydropower (VSHP) plants. The MPC coordinates the turbine controller with the virtual synchronous generator (VSG) control of the power electronics converter to optimize the plant's performance.
arxiv
Noise Measurement of a Wind Turbine using Thick Blades with Blunt Trailing Edge [PDF]
arXiv, 2023 The noise generated by wind turbines can potentially cause significant harm to the ecological environment and the living conditions of residents. Therefore, a proper assessment of wind turbine noise is crucial. The IEC 61400-11 standard provides standardized guidelines for measuring turbine noise, facilitating the comparison of noise characteristics ...
arxiv