Results 11 to 20 of about 5,289 (146)

Fault‐tolerant individual pitch control of floating offshore wind turbines via subspace predictive repetitive control

open access: yesWind Energy, 2021
Individual pitch control (IPC) is an effective and widely used strategy to mitigate blade loads in wind turbines. However, conventional IPC fails to cope with blade and actuator faults, and this situation may lead to an emergency shutdown and increased ...
Yichao Liu   +5 more
doaj   +2 more sources

Wind Tunnel Testing of Yaw by Individual Pitch Control Applied to Wake Steering

open access: yesFrontiers in Energy Research, 2022
The yaw control of horizontal-axis wind turbines is the key point for wake redirection, which is expected to provide an improvement in the balance between wind farm production and loads.
Filippo Campagnolo   +4 more
doaj   +3 more sources

Toward control co-design of utility-scale wind turbines: Collective vs. individual blade pitch control

open access: yesEnergy Reports, 2023
A large-eddy simulation framework has been coupled with controller modules to systematically investigate the impacts of collective (CPC) and individual (IPC) pitch control strategies on utility-scale wind turbine energy production and fatigue loads. Wind
Christian Santoni   +3 more
doaj   +3 more sources

Biological and Biologically Inspired Functional Nanostructures: Insights into Structural, Optical, Thermal, and Sensing Applications. [PDF]

open access: yesAdv Mater
Biological and biologically‐inspired functional nanostructures with structural, thermal, optical, and sensing applications are reviewed. The role of nanoscale features in biological materials on performance is described, and their blueprints are used for bio‐inspired nanomaterials, synthesized using advanced techniques (i.e., photolithography, bio ...
Sung CHJ   +15 more
europepmc   +2 more sources

Load reduction for wind turbines: an output-constrained, subspace predictive repetitive control approach [PDF]

open access: yesWind Energy Science, 2022
Individual pitch control (IPC) is a well-known approach to reduce blade loads on wind turbines. Although very effective, IPC usually requires high levels of actuator activities, which significantly increases the pitch actuator duty cycle (ADC). This will
Y. Liu   +3 more
doaj   +1 more source

Individual Pitch Control of Wind Turbines Based on SVM Load Estimation and LIDAR Measurement

open access: yesIEEE Access, 2021
With the development of wind turbines to the large scale with high rated powers, how to reduce fatigue loads is the key factor for modern wind turbine control. Aiming at reducing the wind turbine structural fatigue loads, an individual pitch control (IPC)
Xin Wang   +5 more
doaj   +1 more source

Allowable Pitch Angle of Aerodynamic Imbalance Due to Individual Pitch Movement for Ultimate Loads on Offshore Wind Turbine Using Artificial Neural Network

open access: yesApplied Sciences, 2022
This study aims to calculate the ultimate loads through integrated load analysis under aerodynamic imbalance by individual pitch movement of offshore wind turbines, and based on this, to identify the allowable region of the individual pitch angle of the ...
Bae-Sung Kim   +3 more
doaj   +1 more source

Convex economic model predictive control for blade loads mitigation on wind turbines

open access: yesWind Energy, 2023
Economic model predictive control (EMPC) has received increasing attention in the wind energy community due to its ability to trade‐off economic objectives with ease.
Atindriyo Kusumo Pamososuryo   +4 more
doaj   +1 more source

Analysis of Adaptive Individual Pitch Control Schemes for Blade Fatigue Load Reduction on a 15 MW Wind Turbine

open access: yesApplied Sciences, 2023
Individual pitch control (IPC) is a method to mitigate periodic blade loads in wind turbines, and it is typically implemented using the multi-blade coordinate (MBC) transform, which converts the blade load measurements from a rotating frame into the non ...
Manuel Lara   +4 more
doaj   +1 more source

A Comparative Study on Primary Bearing Rating Life of a 5-MW Two-Blade Wind Turbine System Based on Two Different Control Domains

open access: yesEnergies, 2019
Recently, the importance of individual pitch control (IPC) capability in wind turbine systems has been emphasized to achieve the desired power performance and mitigate the aerodynamic imbalance load for the mechanical integrity.
Bon-Yong Koo, Dae-Yi Jung
doaj   +1 more source

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