Surrogate model uncertainty in wind turbine reliability assessment

RMM Slot, JD Sørensen, B Sudret, L Svenningsen… - Renewable Energy, 2020 - Elsevier
Lowering the cost of wind energy entails the optimization of wind turbine material
consumption without compromising structural safety. Traditionally, wind turbines are …

[HTML][HTML] From wind to loads: wind turbine site-specific load estimation with surrogate models trained on high-fidelity load databases

N Dimitrov, MC Kelly, A Vignaroli… - Wind Energy Science, 2018 - wes.copernicus.org
We define and demonstrate a procedure for quick assessment of site-specific lifetime fatigue
loads using simplified load map** functions (surrogate models), trained by means of a …

[HTML][HTML] Numerical modelling of neutral atmospheric boundary layer flow through heterogeneous forest canopies in complex terrain (a case study of a Swedish wind …

H Abedi, S Sarkar, H Johansson - Renewable Energy, 2021 - Elsevier
This paper exposes the risk of generalization of wind conditions from a single met-mast
measurement to be representative of the actual flow field in a wind farm situated in complex …

Model of wind shear conditional on turbulence and its impact on wind turbine loads

N Dimitrov, A Natarajan, M Kelly - Wind Energy, 2015 - Wiley Online Library
We analyse high‐frequency wind velocity measurements from two test stations over a period
of several years and at heights ranging from 60 to 200 m, with the objective to validate wind …

Sensitivity analysis of the effect of wind characteristics and turbine properties on wind turbine loads

AN Robertson, K Shaler, L Sethuraman… - Wind Energy …, 2019 - wes.copernicus.org
Proper wind turbine design relies on the ability to accurately predict ultimate and fatigue
loads of turbines. The load analysis process requires precise knowledge of the expected …

Effects of normal and extreme turbulence spectral parameters on wind turbine loads

N Dimitrov, A Natarajan, J Mann - Renewable Energy, 2017 - Elsevier
Loads simulations as performed to obtain design loads on wind turbines, requires wind
turbulence as an input, characterized by parameters associated with the turbulence length …

Uncertainty in wind climate parameters and their influence on wind turbine fatigue loads

HS Toft, L Svenningsen, JD Sørensen, W Moser… - Renewable Energy, 2016 - Elsevier
According to the wind turbine standard IEC 61400-1, structural integrity of wind turbines is
determined either by direct reference to wind data or by load calculation. In both cases …

Surrogate models for parameterized representation of wake‐induced loads in wind farms

N Dimitrov - Wind Energy, 2019 - Wiley Online Library
A procedure for map** wake‐induced load predictions computed with the dynamic wake
meandering model to a computationally efficient surrogate model approximation is defined …

The Global Atlas for Siting Parameters project: Extreme wind, turbulence, and turbine classes

XG Larsén, N Davis, Á Hannesdóttir, M Kelly… - Wind …, 2022 - Wiley Online Library
Summary The Global Atlas for Siting Parameters project compiles a suite of models into a
complex modeling system, uses up‐to‐date global datasets, and creates global atlases of …

A new k‐epsilon model consistent with Monin–Obukhov similarity theory

MP van der Laan, MC Kelly, NN Sørensen - Wind Energy, 2017 - Wiley Online Library
A new k‐ϵ model is introduced that is consistent with Monin–Obukhov similarity theory
(MOST). The proposed k‐ϵ model is compared with another k‐ϵ model that was developed …