Relevant bibliographies by topics / Below and Above rated speed of wind

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Below and Above rated speed of wind'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Below and Above rated speed of wind"

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Sulata, Bhandari* Dr. Tilak Thakur Dr. Jagdish Kumar. "IMPLEMENTING FUZZY CONTROLLER FOR WIND TURBINE CONTROL FOR ALL WIND SPEEDS --WITH REDUCED FUZZY RULE SET." Global Journal of Engineering Science and Research Management 4, no. 9 (2017): 36–41. https://doi.org/10.5281/zenodo.886925.

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To extract maximum power, at below rated speed of wind, the speed of the generator rotor is adjusted for maximum power extraction. But for higher wind speed, however the output power is monitored and controlled at rated power by pitch angle adjustments. In this paper attempt has been made to design and implement a fuzzy controller, which is applicable for both below rated wind speed region as well as above that. It is proposed and shown that how framing control rules using only the desired extremity conditions helps attaining the desired result with a reduced rule set, making it easy for furth
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Rajendran, Saravanakumar, and Debashisha Jena. "Control of Variable Speed Variable Pitch Wind Turbine at Above and Below Rated Wind Speed." Journal of Wind Energy 2014 (October 22, 2014): 1–14. http://dx.doi.org/10.1155/2014/709128.

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The paper presents a nonlinear approach to wind turbine (WT) using two-mass model. The main aim of the controller in the WT is to maximize the energy output at varying wind speed. In this work, a combination of linear and nonlinear controllers is adapted to variable speed variable pitch wind turbines (VSVPWT) system. The major operating regions of the WT are below (region 2) and above rated (region 3) wind speed. In these regions, generator torque control (region 2) and pitch control (region 3) are used. The controllers in WT are tested for below and above rated wind speed for step and vertica
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Meng, Fanzhong, Wai Hou Lio, and Gunner Chr Larsen. "Wind turbine LIDAR-assisted control: Power improvement, wind coherence and loads reduction." Journal of Physics: Conference Series 2265, no. 2 (2022): 022060. http://dx.doi.org/10.1088/1742-6596/2265/2/022060.

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Abstract This paper aims to firstly review various LIDAR-assisted wind turbine control methods proposed in the past ten years for improving power production in the below rated wind speed region in order to clarify their performance and quantify the potential benefits and drawbacks of LIDAR-assisted control. Secondly, a new LIDAR-assisted control algorithm based on Extremum Seeking Control (ESC) using LIDAR preview information for tracking the optimal power coefficient value is presented and compared to the traditional control strategy. The results show that the newly proposed LIDAR-assisted co
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Rajendran, Saravanakumar, and Debashisha Jena. "Load Mitigation and Optimal Power Capture for Variable Speed Wind Turbine in Region 2." Journal of Renewable Energy 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/978216.

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This paper proposes the two nonlinear controllers for variable speed wind turbine (VSWT) operating at below rated wind speed. The objective of the controller is to maximize the energy capture from the wind with reduced oscillation on the drive train. The conventional controllers such as aerodynamic torque feedforward (ATF) and indirect speed control (ISC) are adapted initially, which introduce more power loss, and the dynamic aspects of WT are not considered. In order to overcome the above drawbacks, modified nonlinear static state with feedback estimator (MNSSFE) and terminal sliding mode con
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McNerney, G. "Unintended Stalling of the USW 56-100 During Optimum Pitch Control Operation." Journal of Solar Energy Engineering 116, no. 3 (1994): 153–57. http://dx.doi.org/10.1115/1.2930075.

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The U.S. Windpower 56-100 is a three-bladed, free yaw wind turbine, using full span blade pitch control for power regulation. It is theoretically possible to increase the energy capture of the 56-100 by adjusting the blade angle to the optimum pitch angle on a continuing basis at below rated speeds. This concept was field tested on the 56-100, but it was found that the optimum pitch control logic opens a pathway for the 56-100 to fall into stall operation when the winds are above the rated wind speed. The 56-100 then operates as a stall-regulated wind turbine with an overall reduction of energ
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Yuan, Chenyang, Jing Li, Jianyun Chen, Qiang Xu, and Yunfei Xie. "Study on the Influence of Baseline Control System on the Fragility of Large-Scale Wind Turbine considering Seismic-Aerodynamic Combination." Advances in Civil Engineering 2020 (April 16, 2020): 1–15. http://dx.doi.org/10.1155/2020/8471761.

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The purpose of this paper is to explore the effect of the baseline control system (BCS) on the fragility of large-scale wind turbine when seismic and wind actions are considered simultaneously. The BCS is used to control the power output by regulating rotor speed and blade-pitch angle in real time. In this study, the fragility analysis was performed and compared between two models using different peak ground acceleration, wind speeds, and specified critical levels. The fragility curves with different wind conditions are obtained using the multiple stripe analysis (MSA) method. The calculation
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Reddy, Yiza-srikanth, and Sung-ho Hur. "Comparison of Optimal Control Designs for a 5 MW Wind Turbine." Applied Sciences 11, no. 18 (2021): 8774. http://dx.doi.org/10.3390/app11188774.

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Optimal controllers, namely Model Predictive Control (MPC), H∞ Control (H∞), and Linear Quadratic Gaussian control (LQG), are designed for a 5 MW horizontal-axis variable-speed wind turbine. The control design models required as part of the optimal control design are obtained by using a high fidelity aeroelastic model (i.e., DNV Bladed). The optimal controllers are eventually designed in three operating modes: below-rated, just below-rated, and above rated-wind speeds, based on linearized control design models. The linearized models are reduced by using a model reduction technique to facilitat
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Kim, Hyungyu, Kwansu Kim, Carlo Bottasso, Filippo Campagnolo, and Insu Paek. "Wind Turbine Wake Characterization for Improvement of the Ainslie Eddy Viscosity Wake Model." Energies 11, no. 10 (2018): 2823. http://dx.doi.org/10.3390/en11102823.

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This paper presents a modified version of the Ainslie eddy viscosity wake model and its accuracy by comparing it with selected exiting wake models and wind tunnel test results. The wind tunnel test was performed using a 1.9 m rotor diameter wind turbine model operating at a tip speed ratio similar to that of modern megawatt wind turbines. The control algorithms for blade pitch and generator torque used for below and above rated wind speed regions similar to those for multi-MW wind turbines were applied to the scaled wind turbine model. In order to characterize the influence of the wind turbine
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Cioni, Stefano, Francesco Papi, Emanuele Cocchi, and Alessandro Bianchini. "UNICO: an open-source controller optimized for stall-regulated wind turbines." Journal of Physics: Conference Series 2767, no. 3 (2024): 032004. http://dx.doi.org/10.1088/1742-6596/2767/3/032004.

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Abstract Stall regulation turbines still represent the preferred solution for small wind turbines. In stall-controlled rotors the controller plays a key role but, differently from pitch-based ones, no open-source controller was available to date. The study presents the UNICO (UNIfi research COntroller) controller, which has been specifically developed for variable speed stall-regulated turbines. The controller has been developed in MATLAB® Simulink® and a dynamic link library (.dll) has been generated, which can be coupled with common simulation codes such as OpenFAST and QBlade using a Bladed
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Mann, Jakob, Alfredo Peña, Niels Troldborg, and Søren J. Andersen. "How does turbulence change approaching a rotor?" Wind Energy Science 3, no. 1 (2018): 293–300. http://dx.doi.org/10.5194/wes-3-293-2018.

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Abstract. For load calculations on wind turbines it is usually assumed that the turbulence approaching the rotor does not change its statistics as it goes through the induction zone. We investigate this assumption using a nacelle-mounted forward-looking pulsed lidar that measures low-frequency wind fluctuations simultaneously at distances between 0.5 and 3 rotor diameters upstream. The measurements show that below rated wind speed the low-frequency wind variance is reduced by up to 10 % at 0.5 rotor diameters upstream and above rated enhanced by up to 20 %. A quasi-steady model that takes into
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Dissertations / Theses on the topic "Below and Above rated speed of wind"

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Gase, Zachary M. "Below-Rated Control of Swept-Blade Wind Turbines." Scholarly Commons, 2016. https://scholarlycommons.pacific.edu/uop_etds/225.

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Modelling studies have shown that 1.5 and 3.0 MW wind turbines with blade sweep have an increased annual energy production (AEP) of approximately 5% when compared to straight-blade wind turbines. The objective of the research was to further increase below-rated, variable speed, power capture when using swept-blades. When operating in the variable speed region, the turbine’s torque is proportional to the square of the generator speed, and k is the proportionality constant (T = kΩ 2 ). Initial studies indicated that the value of k needed to be lowered from the original value to increase AEP. Thi
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Book chapters on the topic "Below and Above rated speed of wind"

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Schulte, Horst, and Nico Goldschmidt. "Fault-Tolerant Fast Power Tracking Control for Wind Turbines Above Rated Wind Speed." In Advanced, Contemporary Control. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-35170-9_22.

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Aboutalebi, Payam, Fares M’zoughi, Irfan Ahmad, Aitor J. Garrido, and Izaskun Garrido. "A Control Approach on Hybrid Floating Offshore Wind Turbines for Platform and Generated Power Oscillations Reduction at Below-rated Wind Speed." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-18050-7_49.

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Conference papers on the topic "Below and Above rated speed of wind"

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Li, Jiaqi, and Hua Geng. "Stability Analysis and Improvment of Floating Offshore Wind Turbine in Above Rated Wind Speed Region." In 2024 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2024. http://dx.doi.org/10.1109/pesgm51994.2024.10688854.

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Das, Tuhin, Greg Semrau, and Sigitas Rimkus. "Nonlinear Control of Variable Speed Wind Turbines With Switching Across Operating Regimes." In ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control. ASMEDC, 2011. http://dx.doi.org/10.1115/dscc2011-6142.

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One of the key control problems associated with variable speed wind turbine systems is maximization of energy extraction when operating below the rated wind speed and power regulation when operating above the rated wind speed. In this paper, we approach these problems from a nonlinear systems perspective. For below rated wind speeds we adopt existing work appearing in the literature and provide further insight into the characteristics of the resulting equilibrium points of the closed-loop system. For above rated wind speeds, we propose a nonlinear controller and analyze the stability property
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Eggers, A. J., P. Moriarty, K. Chaney, R. Digumarthi, and W. E. Holley. "Influence of Transition Modes and Gravity Loads on Rotor Fatigue and Power Control." In ASME 2002 Wind Energy Symposium. ASMEDC, 2002. http://dx.doi.org/10.1115/wind2002-46.

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Two classes of transition modes are examined. The first class involves rotor start-up and shut-down in turbulent winds with rapidly varying mean wind speeds. In the start-up mode, coupling can occur between the mean and cyclic pitch control systems which leads to large peaks in blade flatwise moments. These peaks can substantially increase overall fatigue damage. They can be reduced by controlling blade pitch solely with the closed loop control system. Allowing the rotor to freely rotate at wind speeds below start-up eliminates blade moment peaks in the transition to low speed operation, with
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Mohr, Eric, Biswaranjan Mohanty, and Kim A. Stelson. "Short-Term Energy Storage System for Hydraulic Hybrid Wind Turbine Transmission." In BATH/ASME 2020 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fpmc2020-2777.

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Abstract A Hydrostatic Transmission (HST) offers a variable ratio transmission for wind turbines that has a higher power to weight ratio than traditional gearboxes, and requires less maintenance. In a conventional turbine, when the wind speed increases above the rated speed, the blade pitch is controlled to dissipate excess energy and regulate the turbine at rated power. An energy storage system allows the turbine to temporarily operate above rated power, and capture the traditionally dissipated energy in an accumulator. When the wind speed drops below the rated speed, the energy in the accumu
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Nielsen, Finn Gunnar, Tor David Hanson, and Bjo̸rn Skaare. "Integrated Dynamic Analysis of Floating Offshore Wind Turbines." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92291.

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Two different simulation models for integrated dynamic analysis of floating offshore wind turbines are described and compared with model scale experiments for the Hywind concept for floating offshore wind turbines. A variety of both environmental conditions and wind turbine control schemes are tested. A maximum power control strategy is applied for wind velocities below the rated wind speed for the wind turbine, while a constant power control strategy is achieved by controlling the rotor blade pitch for wind velocities above rated wind speed. Conventional rotor blade pitch control for wind vel
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Srikanth Reddy, Yiza, and Sung-ho Hur. "Wind Turbine Gust Control Using LIDAR-Assisted Model Predictive Control." In ASME 2023 5th International Offshore Wind Technical Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/iowtc2023-119579.

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Abstract Light Detection and Ranging (LIDAR)-based wind measurement system, positioned forward-facing, can gather information about the approaching wind. It proactively enables the wind turbine to adjust its operation via the feedforward (FF) loop. LIDAR technology can enhance wind turbine performance throughout its entire operational range. It can assist in torque control when wind speeds are below the rated level and in pitch control when wind speeds exceed the rated level. In this study, Model Predictive Control (MPC) is utilized. Within the field of wind turbine research, MPC has garnered
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Popko, Wojciech, Amy Robertson, Jason Jonkman, et al. "Validation of Numerical Models of the Offshore Wind Turbine From the Alpha Ventus Wind Farm Against Full-Scale Measurements Within OC5 Phase III." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95429.

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Abstract The main objective of the Offshore Code Comparison Collaboration Continuation, with Correlation (OC5) project is validation of aero-hydro-servo-elastic simulation tools for offshore wind turbines (OWTs) through comparison of simulated results to the response data of physical systems. Phase III of the OC5 project validates OWT models against the measurements recorded on a Senvion 5M wind turbine supported by the OWEC Quattropod from the alpha ventus offshore wind farm. The following operating conditions of the wind turbine were chosen for the validation: (1) Idling below the cut-in win
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Firpo, Agnese, Andrea G. Sanvito, Vincenzo Dossena, and Giacomo Persico. "Aerodynamic Study of a Horizontal Axis Wind Turbine in Surge Motion Under Angular Speed and Blade Pitch Controls." In ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-129321.

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Abstract Floating offshore wind turbines experience dynamic conditions due to platform motion, requiring specific control strategies to mitigate loads and promote the wake diffusion improving overall wind farm efficiency. These problems can be appropriately modelled by medium-fidelity solvers, which rely on a CFD resolution of the flow while avoiding its detailed resolution around the blades, preserving high-fidelity in simulating the wake at an acceptable computational cost. This work adopts a medium-fidelity Actuator Line Model, implemented in the OpenFOAM environment, previously validated a
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Lin, Z., A. Stetco, J. Carmona-Sanchez, et al. "Progress on the Development of a Holistic Coupled Model of Dynamics for Offshore Wind Farms: Phase II — Study on a Data-Driven Based Reduced-Order Model for a Single Wind Turbine." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95542.

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Abstract At present, over 1500 offshore wind turbines (OWTs) are operating in the UK with a capacity of 5.4GW. Until now, the research has mainly focused on how to minimise the CAPEX, but Operation and Maintenance (O&M) can represent up to 39% of the lifetime costs of an offshore wind farm, mainly due to the assets’ high cost and the harsh environment in which they operate. Focusing on O&M, the HOME Offshore research project (www.homeoffshore.org) aims to derive an advanced interpretation of the fault mechanisms through holistic multiphysics modelling of the wind farm. With the present
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Kress, Christian, Ndaona Chokani, and Reza S. Abhari. "Design Considerations of Rotor Cone Angle for Downwind Wind Turbines." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-42335.

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Due to their potential to use light, flexible blades, downwind turbines are well suited for offshore floating platforms, for which there is a need to substantially lower the cost of wind-generated electricity. However, downwind rotors must operate in the presence of the tower’s wakes with which are associated strong changes in flow incidence, and thus high fatigue loads. In order to guide the development of design rules for multi-megawatt downwind turbines, a comprehensive experimental study has been conducted to better understand the characteristics of the unsteady rotor torque on downwind tu
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Reports on the topic "Below and Above rated speed of wind"

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Carpenter, Grace. Shenandoah National Park: Acoustic monitoring report, 2016?2017. National Park Service, 2023. http://dx.doi.org/10.36967/2300465.

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This report presents acoustical data gathered by the Natural Sounds and Night Skies Division (NSNSD) at Shenandoah National Park (SHEN) in August?September of 2016 and January?March of 2017. Data were collected at four sites (Figure 1) to provide park managers with information about the acoustical environment, sources of noise , and the existing ambient sound levels within the park. In these deployments, sound pressure level (SPL) was measured continuously every second by a calibrated sound level meter. Other equipment included an anemometer to collect wind speed and a digital audio recorder c
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Job, Jacob. Mesa Verde National Park: Acoustic monitoring report. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2286703.

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In 2015, the Natural Sounds and Night Skies Division (NSNSD) received a request to collect baseline acoustical data at Mesa Verde National Park (MEVE). Between July and August 2015, as well as February and March 2016, three acoustical monitoring systems were deployed throughout the park, however one site (MEVE002) stopped recording after a couple days during the summer due to wildlife interference. The goal of the study was to establish a baseline soundscape inventory of backcountry and frontcountry sites within the park. This inventory will be used to establish indicators and thresholds of so
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