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Journal articles on the topic 'Wind turbines'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Zhou, Xingguo, Yankang Tian, Yi Qin, Costas A. Charitidis, Tanja K. Milickovic, and Stefania Termine. "An advanced structural health monitoring IoT platform for offshore wind turbine blades." Manufacturing Review 12 (2025): 12. https://doi.org/10.1051/mfreview/2025008.

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Wind energy is renewable and is an essential ingredient in the move towards carbon neutrality and net zero emissions Compared with onshore wind turbines, offshore wind turbines generally experience higher wind speed, thus producing more electricity. However, the increasing dimensions of turbine blades and demands in economic requirements of wind turbines' life cycles, together with the harsh marine environment, including high winds, wave-induced vibrations, sea and rain corrosion and erosion, pose challenges for structural integrity, operational efficiency and maintenance cost. This paper pres

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Cui, Jie, Hailei He, and Xin Chen. "Hydrodynamic performance of floating wind turbine under the combined action of wind and wave." Journal of Physics: Conference Series 3021, no. 1 (2025): 012043. https://doi.org/10.1088/1742-6596/3021/1/012043.

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Abstract The objective of this study is to examine the impact of wind and wave interaction on the hydrodynamic characteristics of floating wind turbines. Based on the fluid volume method and overlapping grid technique, the influence of variable wind fields on the hydrodynamic characteristics of series wind turbines (with a spacing of 3 times the diameter of wind turbine blades) was researched. The calculation results demonstrate that the disturbance in the wind field will increase the aerodynamic load, and consequently affect the motion state of the floating wind turbine in the marine environm

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Zhou, Xingguo, Yankang Tian, and Yi Qin. "IoT platform for offshore wind turbine blade structure health monitoring." MATEC Web of Conferences 401 (2024): 08012. http://dx.doi.org/10.1051/matecconf/202440108012.

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Wind energy, as renewable energy, is critical in targeting carbon neutrality or net zero emissions in order to address global climate change. Compared with onshore wind turbines, offshore wind turbines enjoy generally higher wind speed, thus producing more electric energy. However, the harsh marine environment, including high winds, wave-induced vibrations and and sea and rain corrosion and erosion, can lead to structural damage, reduced operational efficiency and increased maintenance cost. This paper presents a novel Internet of Things (IoT) platform for structural health monitoring (SHM) of

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Annoni, Jennifer, Christopher Bay, Kathryn Johnson, et al. "Wind direction estimation using SCADA data with consensus-based optimization." Wind Energy Science 4, no. 2 (2019): 355–68. http://dx.doi.org/10.5194/wes-4-355-2019.

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Abstract. Wind turbines in a wind farm typically operate individually to maximize their own performance and do not take into account information from nearby turbines. To enable cooperation to achieve farm-level objectives, turbines will need to use information from nearby turbines to optimize performance, ensure resiliency when other sensors fail, and adapt to changing local conditions. A key element of achieving a more efficient wind farm is to develop algorithms that ensure reliable, robust, real-time, and efficient operation of wind turbines in a wind farm using local sensor information tha

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5

Chung, P. D. "Evaluation of Reactive Power Support Capability of Wind Turbines." Engineering, Technology & Applied Science Research 10, no. 1 (2020): 5211–16. http://dx.doi.org/10.48084/etasr.3260.

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Reactive power plays an important role in the operation of power systems, especially in the case of wind energy integration. This paper aims to evaluate the reactive power support capability of wind turbines in both normal and voltage sag conditions. The three 2MW wind turbines studied are a fixed speed wind turbine and two variable speed wind turbines with full-scale and power-scale power converters. Comparison results indicate that at normal operation, the fixed speed wind turbine with a static synchronous compensator is able to consume the highest reactive power, while the variable speed wi

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Ackshaya Varshini, K. S., Alenkar K. Aswin, H. Rajan, and K. S. Maanav Charan. "Concept design and numerical analysis of hybrid solar–wind turbine." IOP Conference Series: Earth and Environmental Science 850, no. 1 (2021): 012032. http://dx.doi.org/10.1088/1755-1315/850/1/012032.

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Abstract A wind turbine is a device that converts wind energy to electrical energy. External factors such as wind speed and direction shift, as well as turbine blade design considerations, cause a significant amount of energy to be wasted throughout the conversion process. Considering all these losses, a turbine’s average efficiency is roughly 45 percent. The blades of a wind turbine are one of the most crucial factors in determining the turbine’s efficiency. The design and geometry of the blades have a direct impact on performance since it determines how much kinetic energy from the wind is c

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Tian, Wenxin, Hao Tie, Shitang Ke, et al. "Numerical Investigation of the Influence of the Wake of Wind Turbines with Different Scales Based on OpenFOAM." Applied Sciences 12, no. 19 (2022): 9624. http://dx.doi.org/10.3390/app12199624.

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The wake of a wind turbine has an important influence on the output power of wind farms. Staggered height layout is an emerging method for the layout optimization of wind farms. In order to study the effect of a staggered height layout on the overall power output of wind farms in depth, we established a combination of two large wind turbines and three small wind turbines arranged laterally between the two large wind turbines, and set four working conditions with different distances between the small wind turbines and the downstream large wind turbines as the research objects. The wind turbine

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Zagubień, Adam, Katarzyna Wolniewicz, and Jakub Szwochertowski. "Analysis of Wind Farm Productivity Taking Wake Loss into Account: Case Study." Energies 17, no. 23 (2024): 5816. http://dx.doi.org/10.3390/en17235816.

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Due to the growing demand for green energy, there is a shortage of land available for the location of wind farms. Therefore, the distances between turbines are being reduced, and the power of the turbines is being increased. This results in increased wake loss. The article describes a study of the impact of wind speed deficit and loss of wind turbine output due to wake loss on the decrease in energy efficiency of a wind farm. Two proposed wind farms, where the maximum number of turbines are located, were analyzed. The facilities were designed for implementation in Central Europe. The basic cos

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9

Antipov, Pyotr, Sultanbek Issenov, Marat Koshumbayev, Marat Auelbek, Gulim Nurmaganbetova, and Dauren Issabekov. "Regulation of the power of a wind turbine of a special design by changing the length of the blades." Eastern-European Journal of Enterprise Technologies 4, no. 8 (130) (2024): 31–41. http://dx.doi.org/10.15587/1729-4061.2024.310514.

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The object of this research is a model of a wind turbine with retractable blades. This model allows for the adjustment of the turbine’s screw radius by extending or retracting the blades, providing a basis for examining the impact of blade radius on turbine performance. The primary problem addressed by this study is to determine how changes in the screw radius, achieved by altering the blade length, affect the wind turbine’s performance, specifically its electrical output (voltage and current) and rotational speed, under constant wind conditions. The experimental results showed that when the t

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Khudri Johari, Muhd, Muhammad Azim A Jalil, and Mohammad Faizal Mohd Shariff. "Comparison of horizontal axis wind turbine (HAWT) and vertical axis wind turbine (VAWT)." International Journal of Engineering & Technology 7, no. 4.13 (2018): 74. http://dx.doi.org/10.14419/ijet.v7i4.13.21333.

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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. The main objectives of this study are to build a functional wind turbine and to compare the performance of two types of design for wind turbine under different speeds and behaviours of the wind. A three-blade horizontal axis wind turbine (HAWT) and a Darrieus-type vertical axis wind turbine (VAWT) have been designed with CATIA software and constructed using a 3D-printing method. Bo

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Kryltcov, Sergei, and Sergei Solovev. "Efficient wind energy generation within Arctic latitudes." E3S Web of Conferences 140 (2019): 11005. http://dx.doi.org/10.1051/e3sconf/201914011005.

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The paper addresses approaches to increasing the efficiency of wind turbines operating in autonomous mode in Arctic regions. Such type of wind turbine operation is related to fluctuations of the generated power, that negatively affects grid power quality. The increase of wind turbines efficiency is achieved by the utilization of current reserve of power converter, which is a necessary part of megawatts-sized wind energy generation unit. The developed Simulink model of the wind turbines, built according to two of the most suitable for megawatts-level power generation topologies, was used to det

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Chioncel, Cristian Paul, Gelu-Ovidiu Tirian, and Elisabeta Spunei. "The Behavior of Wind Turbines Equipped with Induction Generators and Stator Converters Under Significant Variations in Wind Speed." Applied Sciences 15, no. 14 (2025): 7700. https://doi.org/10.3390/app15147700.

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This study investigates the performance of medium-power wind turbines (within kilowatt range) in response to substantial fluctuations in wind speed. The wind turbines utilize induction generators that have a short-circuited rotor and are controlled by a power converter within the stator circuit. This configuration facilitates the adjustment of the stator frequency, thereby allowing the desired rotational speed to be achieved and guaranteeing that the turbine operates at the maximum power point (MPP). Specific mathematical models for the turbine and generator have been developed using technical

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Armengol Barcos, Guillem, and Fernando Porté-Agel. "Enhancing Wind Farm Performance through Axial Induction and Tilt Control: Insights from Wind Tunnel Experiments." Energies 17, no. 1 (2023): 203. http://dx.doi.org/10.3390/en17010203.

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Static axial induction control and tilt control are two strategies that have the potential to increase power production in wind farms, mitigating wake effects and increasing the available power for downstream turbines. In this study, wind tunnel experiments are performed to evaluate the efficiency of these two techniques. First, the axial induction of upstream turbines in wind farms comprising two, three, and five turbines is modified through the tip-speed ratio. This strategy is found to be ineffective in increasing power extraction. Next, the power extraction and flow through a two-turbine w

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Simani, Silvio, Saverio Farsoni, and Paolo Castaldi. "Transfer Learning for Fault Detection with Application to Wind Turbine SCADA Data." Journal of Energy and Power Technology 05, no. 01 (2023): 1–12. http://dx.doi.org/10.21926/jept.2301011.

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The installed wind power capacity is growing worldwide. Remote condition monitoring of wind turbines is employed to achieve higher uptimes and lower maintenance costs. Machine learning models can detect developing damages in wind turbines. Therefore, this paper demonstrates that cross–turbine transfer learning can drastically improve the accuracy of fault detection models in turbines with scarce SCADA data. In particular, it shows that combining the knowledge from turbines with scarce and turbines with plentiful data enables earlier detection of faults than prior art methods. Training fault de

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Bechmann, A., T. Barlas, and H. A. Madsen. "Incorporating Electricity Prices in Wind Turbine Design: Introducing the AEV Metric." Journal of Physics: Conference Series 2745, no. 1 (2024): 012018. http://dx.doi.org/10.1088/1742-6596/2745/1/012018.

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Abstract This paper addresses the challenge of incorporating electricity prices into wind turbine design methods and shows how price volatility drives wind turbines towards larger rotors and lower specific power. Since wind speed and electricity prices fluctuate, current efforts to estimate a wind turbine’s revenue are based on time-series approaches. However, this paper presents a new way of accounting for price volatility based on wind distributions, which is computationally cheap and easily integrates with current wind turbine and farm design methods and tools. The new method demonstrates t

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Zong, Shuai, Kun Liu, Yichi Zhang, Xingpeng Yan, and Yukai Wang. "The Dynamic Response of a Floating Wind Turbine under Collision Load Considering the Coupling of Wind-Wave-Mooring Loads." Journal of Marine Science and Engineering 11, no. 9 (2023): 1741. http://dx.doi.org/10.3390/jmse11091741.

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As the number of offshore wind turbines continues to rise and their proximity to navigational routes decreases, the risk of collisions between passing vessels and wind turbines increases, thereby presenting serious threats to the safety of personnel and equipment. Given that collisions between floating wind turbines and vessels entail a complex interplay of wind, wave, and mooring loads, this study established a bidirectional fluid-structure coupling simulation methodology based on Star-CCM+ and ABAQUS. Under the combined influences of wind, wave, and mooring loads, the study investigated the

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Gutierrez, Walter, Arquimedes Ruiz-Columbie, Murat Tutkun, and Luciano Castillo. "Impacts of the low-level jet's negative wind shear on the wind turbine." Wind Energy Science 2, no. 2 (2017): 533–45. http://dx.doi.org/10.5194/wes-2-533-2017.

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Abstract. Nocturnal low-level jets (LLJs) are defined as relative maxima in the vertical profile of the horizontal wind speed at the top of the stable boundary layer. Such peaks constitute major power resources for wind turbines. However, a wind speed maximum implies a transition from positive wind shears below the peak to negative ones above. The effect that such a transition has on wind turbines has not been thoroughly studied.This research study employed a methodical approach to the study of negative wind shear's impacts on wind turbines. Up to now, the presence of negative shears inside th

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Rusianto, Toto, Sudarsono, Samuel Kristiyana, and Yuli Purwanto. "Performance Characteristics of Vortex Wind Turbines with The Computational Fluid Dynamics (CFD) Aided Simulation." E3S Web of Conferences 605 (2025): 01004. https://doi.org/10.1051/e3sconf/202560501004.

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The purpose of this paper present research on vortex wind turbines that is referred to as wind turbines without propellers or bladeless. The innovation of the vortex lies in its unique shape and the way it harnesses energy through oscillating motion. The mast column oscillates with the wind, harnessing the von Karman vortices generated as the fluid passes through the column structure. This paper presents the results of computational fluid dynamics (CFD) simulations of a vortex wind turbine with 6 and 7 inch diameter cylinders at various wind speeds. The voltage generated by a vortex wind turbi

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Arifin, Zainal, Dominicus Danardono Dwi Prija Tjahjana, Suyitno Suyitno, et al. "Performance of Crossflow Wind Turbines in In-line Configuration and Opposite Rotation Direction." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 81, no. 1 (2021): 131–39. http://dx.doi.org/10.37934/arfmts.81.1.131139.

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Wind energy sources must be investigated to produce electrical energy from a renewable source. Crossflow wind turbines are suitable for use because they have several advantages such as self-starting ability, low noise, and excellent stability. They have the potential to be applied as small wind turbines in urban districts because of their small maximum coefficient of power (Cp), which is 10% of that of other small wind turbines. To enhance the performance of crossflow wind turbines, we changed the turbine to rotate in the opposite direction in the in-line configuration. Turbine performance tes

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Murphy, Patrick, Julie K. Lundquist, and Paul Fleming. "How wind speed shear and directional veer affect the power production of a megawatt-scale operational wind turbine." Wind Energy Science 5, no. 3 (2020): 1169–90. http://dx.doi.org/10.5194/wes-5-1169-2020.

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Abstract. Most megawatt-scale wind turbines align themselves into the wind as defined by the wind speed at or near the center of the rotor (hub height). However, both wind speed and wind direction can change with height across the area swept by the turbine blades. A turbine aligned to hub-height winds might experience suboptimal or superoptimal power production, depending on the changes in the vertical profile of wind, also known as shear. Using observed winds and power production over 6 months at a site in the high plains of North America, we quantify the sensitivity of a wind turbine's power

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Jamal, Jamal. "Pengaruh Jumlah Sudu Terhadap Kinerja Turbin Savonius." INTEK: Jurnal Penelitian 6, no. 1 (2019): 64. http://dx.doi.org/10.31963/intek.v6i1.1127.

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Savonius wind turbines are wind turbines that canoperate at low wind speeds, this type of turbine is very suitable tobe used in several places in Indonesia. The research aims toimprove the performance of the Savonius wind turbine withvariations in the number of turbine blades as well as variations inthe velocity of wind speed. The research method wasexperimental where wind turbine testing was carried out withvariations in the number of turbine blades with number of 2, 3and 4 blades, other variations carried out were wind speed at 3.5;4,5; 5.5 and 6.5 m/s. The study results show that the 2-blad

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Das, Swagata, Neeraj Karnik, and Surya Santoso. "Time-Domain Modeling of Tower Shadow and Wind Shear in Wind Turbines." ISRN Renewable Energy 2011 (October 23, 2011): 1–11. http://dx.doi.org/10.5402/2011/890582.

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Tower shadow and wind shear contribute to periodic fluctuations in electrical power output of a wind turbine generator. The frequency of the periodic fluctuations is times the blade rotational frequency , where is the number of blades. For three-bladed wind turbines, this inherent characteristic is known as the effect. In a weak-power system, it results in voltage fluctuation or flicker at the point of common coupling of the wind turbine to the grid. The phenomenon is important to model so as to evaluate the flicker magnitude at the design level. Hence, the paper aims to develop a detailed tim

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Leroux, Camille, Kévin Barré, Nicolas Valet, Christian Kerbiriou, and Isabelle Le Viol. "Distribution of common pipistrelle (Pipistrellus pipistrellus) activity is altered by airflow disruption generated by wind turbines." PLOS ONE 19, no. 5 (2024): e0303368. http://dx.doi.org/10.1371/journal.pone.0303368.

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The mechanisms underlying bat and bird activity peaks (attraction) or losses (avoidance) near wind turbines remain unknown. Yet, understanding them would be a major lever to limit the resulting habitat loss and fatalities. Given that bat activity is strongly related to airflows, we hypothesized that airflow disturbances generated leeward (downwind) of operating wind turbines–via the so-called wake effect–make this area less favorable for bats, due to increased flight costs, decreased maneuverability and possibly lower prey abundance. To test this hypothesis, we quantified Pipistrellus pipistre

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Lillahulhaq, Z., A. Muchyiddin, R. W. Suhadak, I. Amirullah, F. D. Sandy, and A. C. Embot. "Experimental Study Wind Turbine Performance of Straight-Savonius and Ice-Wind Type on the Similar proportion Aspect Ratio." Journal of Physics: Conference Series 2117, no. 1 (2021): 012008. http://dx.doi.org/10.1088/1742-6596/2117/1/012008.

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Abstract The Performance of wind turbines at low speed can be improved by Ice-Wind model, particularly in self-starting conditions. Compared to a traditional wind turbine with two blades of the similar area and material, Ice-Wind can increase efficiency by 19%. Research on the Savonius turbine, particularly the Ice-Wind turbine, is challenging. It is because it has many restrictive parameters, such as the height, diameter, and area of the turbine blades. The Ice-Wind turbine shape is obtained by cutting a Savonius turbine. This process led to research on Ice-Wind turbines only under the simila

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Khozyainov, B. P. "THE WAYS TO ACHIEVE LEADERSHIP IN WIND ENERGY." Alternative Energy and Ecology (ISJAEE), no. 22-24 (November 5, 2018): 59–67. http://dx.doi.org/10.15518/isjaee.2018.22-24.059-067.

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The article provides the analysis of performance efficiency of various designs of wind turbines with a horizontal and vertical axis of rotation and reveals the advantages and disadvantages of each design and possibility of each of them to work effectively in the conditions of the wind mode of Russia. As a result, we have concluded that the wind turbines with a vertical axis of rotation using the principle of the differential front resistance are most adapted for the further development of wind energy since these wind turbines are capable to work at very small wind speeds and are more adapted f

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Neunaber, Ingrid, Michael Hölling, Richard J. A. M. Stevens, Gerard Schepers, and Joachim Peinke. "Distinct Turbulent Regions in the Wake of a Wind Turbine and Their Inflow-Dependent Locations: The Creation of a Wake Map." Energies 13, no. 20 (2020): 5392. http://dx.doi.org/10.3390/en13205392.

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Wind turbines are usually clustered in wind farms which causes the downstream turbines to operate in the turbulent wakes of upstream turbines. As turbulence is directly related to increased fatigue loads, knowledge of the turbulence in the wake and its evolution are important. Therefore, the main objective of this study is a comprehensive exploration of the turbulence evolution in the wind turbine’s wake to identify characteristic turbulence regions. For this, we present an experimental study of three model wind turbine wake scenarios that were scanned with hot-wire anemometry with a very high

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Shaler, Kelsey, Amy N. Robertson, and Jason Jonkman. "Sensitivity analysis of the effect of wind and wake characteristics on wind turbine loads in a small wind farm." Wind Energy Science 8, no. 1 (2023): 25–40. http://dx.doi.org/10.5194/wes-8-25-2023.

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Abstract. Wind turbines are designed using a set of simulations to determine the fatigue and ultimate loads, which are typically focused solely on unwaked wind turbine operation. These structural loads can be significantly influenced by the wind inflow conditions. Turbines experience altered inflow conditions when placed in the wake of upstream turbines, which can additionally influence the fatigue and ultimate loads. It is important to understand the impact of uncertainty on the resulting loads of both unwaked and waked turbines. The goal of this work is to assess which wind-inflow-related an

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Sandhu, Navjot Singh, and Saurabh Chanana. "Performance and Economic Analysis of Multi-Rotor Wind Turbine." EMITTER International Journal of Engineering Technology 6, no. 2 (2018): 289–316. http://dx.doi.org/10.24003/emitter.v6i2.298.

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Power production of a wind turbine is dependent upon its rotor size and at present wind turbines with large rotor diameter (>175 m) are available in the market. However major problems associated with such large size conventional turbines are their cost & noise pollution. Due to these reason researchers have diverted their attention towards lower sized equivalent multi-rotor wind turbines. These turbines are found to be cheaper and good performers. Keeping it in view, in this paper an effort has been made to compare the energy yield and economics of two types of wind turbines i.e. single

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Ren, Na, Guangwei Zhu, Shaonan Fu, Xiaocong He, Jianbin Hu, and Yangguang Zhu. "Research on wind direction measurement of wind turbine based on fluid simulation." Journal of Physics: Conference Series 2441, no. 1 (2023): 012059. http://dx.doi.org/10.1088/1742-6596/2441/1/012059.

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Abstract For horizontal-axis wind turbines, wind turbines typically alignment nacelle to the wind using yaw system, realizing max energy capture. If the wind turbine’s nacelle has a large error to the wind, the captured wind energy loss will be large, and it will also cause an increase in the load of the unit, which will pose a major risk to the safety of the wind turbine. Affecting the wind measurement error in addition to the performance of the sensor itself, the installation position of the wind measurement equipment also accounts for an important factor, this paper on the basis of the calc

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Ozturk, Samet, Vasilis Fthenakis, and Stefan Faulstich. "Assessing the Factors Impacting on the Reliability of Wind Turbines via Survival Analysis—A Case Study." Energies 11, no. 11 (2018): 3034. http://dx.doi.org/10.3390/en11113034.

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The failure of wind turbines is a multi-faceted problem and its monetary impact is often unpredictable. In this study, we present a novel application of survival analysis on wind turbine reliability, including accounting for previous failures and the history of scheduled maintenance. We investigated the operational, climatic and geographical factors that affect wind turbine failure and modeled the risk rate of wind turbine failure based on data from 109 turbines in Germany operating for a period of 19 years. Our analysis showed that adequately scheduled maintenance can increase the survival of

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Dhanan Arieyasa, I. W., Cok G. Indra Partha, and I. W. Sukerayasa. "ANALISIS PERBANDINGAN UNJUK KERJA WIND TURBINE TSD-500 DAN GH – 0.5K DI PILOT SMART GRID TEKNIK ELEKTRO UNIVERSITAS UDAYANA." Jurnal SPEKTRUM 7, no. 1 (2020): 48. http://dx.doi.org/10.24843/spektrum.2020.v07.i01.p7.

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Wind power generation is a power plant that converts kinetic energy into electrical energy by utilizing wind as its energy source. The Smart Grid Pilot Project in Microgrid, Udayana University's Electrical Engineering Study Program has a wind power plant for research. The wind power plants in the Smart Grid Pilot Project in Microgrid Udayana University's Electrical Engineering Study Program totaled 10 turbines with rated power of 500 Watt each, from 10 wind turbines there are 8 wind turbines with TSD-500 models made in Indonesia and 2 wind turbines with GH-0.5K models made in China. The data l

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Mohammed Aldhufairi, Mohd Khairul Hafiz Muda, Faizal Mustapha, Kamarul Arifin Ahmad, and Noorfaizal Yidris. "Design of Wind Nozzle for Nozzle Augmented Wind Turbine." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 95, no. 1 (2022): 36–43. http://dx.doi.org/10.37934/arfmts.95.1.3643.

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In some countries, wind turbines are designed to operate at relatively high speeds to be appropriately efficient, limiting the use of wind turbines in urban areas with low wind speeds. Thus, innovation is needed to enhance the possibility of wind energy use within the range of low speeds. In order to increase the electrical power of the wind turbines, the velocity of the wind blowing on the wind turbine, is the most important factor that has to increase. In this paper it has been recommended that contraction nozzles could be applied between Wind Turbines and wind-way to provide the wind throug

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Li, Qian, Wei Li, HangBing Lin, LianDa Gao, Yong Liu, and DeShun Li. "Effects of turbulence on the blade root load of the tandem wind turbine in neutral atmospheric boundary layer." Journal of Physics: Conference Series 2831, no. 1 (2024): 012037. http://dx.doi.org/10.1088/1742-6596/2831/1/012037.

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Abstract A model characterizing a turbulent wind field, consistent with neutral atmospheric boundary layer attributes, was developed for a field-based experimental wind turbine using stochastic processes combined with shear flow profiles. By incorporating interactions of vertical thermal exchange, terrain-induced surface roughness, and Coriolis forces, the model simulates environmental impacts. A sequence of wind turbines situated within the atmospheric wind field underwent computational analysis leveraging Large Eddy Simulation (LES) alongside an Actuator Line Model (ALM) to examine atmospher

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Roddier, Dominique, and Joshua Weinstein. "Floating Wind Turbines." Mechanical Engineering 132, no. 04 (2010): 28–32. http://dx.doi.org/10.1115/1.2010-apr-2.

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This article discusses the functioning of floating wind turbines. The engineering requirements for the design of floating offshore wind turbines are extensive. Wind turbine design tools usually consist of an aerodynamic model (for flow around the blades) coupled with a structural code. Aero-elastic models used in the design of fixed turbines calculate all the necessary loading parameters, from turbine thrust and power generation, to blade and tower deflections. The design of floating structures usually involves hydrodynamics tools such as WAMIT Inc.’s software for studying wave interactions wi

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Yang, Ming Li, San Ming Liu, Yong Hai Lv, Yang Zou, and Guo Dong Ding. "The Real-Time Wind Turbine Fault Diagnosis Method Based on Safety Evaluation Model." Advanced Materials Research 953-954 (June 2014): 453–57. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.453.

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In order to determine the best maintenance time of wind turbines and identify the fault type when it is the best time to do the diagnosis work immediately. The establishment of 4-level safety status model for critical parts of wind turbines, based on wind turbine parts’ significance level, was proposed. According to the corresponding safety level of the wind turbines in real-time working status, you can decide whether the wind turbine needs diagnosis at the time or not. Therefore, we should take measures to monitor the real-time working conditions of the wind turbine’s critical parts, confirmi

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Rajput, Himanshu, Anil Gupta, Harihar Sah, Manoj Gattani, and Raj kumar Satankar. "Design and development of the divergent wind turbine." IOP Conference Series: Earth and Environmental Science 1084, no. 1 (2022): 012075. http://dx.doi.org/10.1088/1755-1315/1084/1/012075.

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Abstract Wind energy is a prime source of renewable energy nowadays. Wind energy is converted to electrical energy with the help of wind turbines. There is various kind of wind turbines depending upon their axis and shape. The wind turbine which we have designed is a vertical axis helical wind turbine that is circular. Going from top to bottom, the diameter of the circular blades increases. The diameter at the top is the lowest and at the bottom it is maximum. Such a design is proposed to utilize the maximum wind pressure created by vehicles on road. Positive results have been received by test

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Knysh, L. I. "ON POTENTIAL OF USING WIND TURBINES WITH COAXIAL WIND ROTORS FOR AUTONOMOUS POWER SUPPLY." Alternative Energy and Ecology (ISJAEE), no. 25-30 (December 7, 2018): 25–33. http://dx.doi.org/10.15518/isjaee.2018.25-30.025-033.

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The paper presents the experimental research results for the horizontal-axis wind turbine with coaxial wind rotors. It is assumed that such coaxial layout of the wind turbine can be used for designing of the wind energy systems with relatively low capacity and limited location area since the coaxial systems have advantages in overall dimensions and maximum using of the swept area. Possibility of coaxial horizontal-axis wind turbines usage is determined by positive or negative effect of turbines on each other. Literature review shows that closely spaced wind turbines can generally improve flow

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Putri, Salsabillah Shiva, Sudarti ., and Yushardi . "Analisis Cara Kerja Turbin Angin Sumbu Vertikal." Jurnal Pendidikan, Sains Dan Teknologi 2, no. 2 (2023): 1034–36. http://dx.doi.org/10.47233/jpst.v2i2.1356.

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Wind is the movement of air from an area with high pressure to an area with low pressure. Wind energy is one of the many abundant renewable energies. One example of the use of wind energy in Indonesia is the Wind Power Plant. A vertical axis wind turbine is a wind turbine that moves vertically where its axis is perpendicular to the ground surface. The advantage of this vertical axis windmill is that the turbine is not always directed towards the wind. The disadvantage of vertical axis wind turbines is that their efficiency is lower than horizontal axis wind turbines because there is lower wind

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Erwin, Erwin, Priyana Soemardi Tresna, Surjosatyo Adi, Nurfuadi Sakti, and Wiyono Slamet. "PERFORMANCE INVESTIGATION OF DUAL SHAFT HYBRID VERTICAL TURBINES USING DIRECTIONAL FINS." Eastern-European Journal of Enterprise Technologies 5, no. 8 (101) (2019): 53–58. https://doi.org/10.15587/1729-4061.2019.176889.

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The current direction of wind turbine development is more on horizontal wind turbine types because of its efficiency, which is better than vertical wind turbines. But there are some advantages of this vertical wind turbine in the kind of array turbines and small-sized turbines. In this paper, the research focuses on developing a vertical wind turbine between Savonius and Darrieus turbines and has a dual shaft on one wind energy generating unit. Vertical turbine design with two turbine shafts placed close together is intended to increase turbine efficiency and increase power density. But this d

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Doerffer, Piotr, Krzysztof Doerffer, Tomasz Ochrymiuk, and Janusz Telega. "Variable Size Twin-Rotor Wind Turbine." Energies 12, no. 13 (2019): 2543. http://dx.doi.org/10.3390/en12132543.

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The paper presents a new concept of a vertical axis wind turbine. The idea is focused on small wind turbines, and therefore, the dominating quality is safety. Another important necessary feature is efficient operation at small winds. This implies an application of the drag driven solution such as the Savonius rotor. The presented concept is aimed at reducing the rotor size and the cost of implementation. A new wind turbine solution, its efficiency, and functionality are described. The results of numerical simulations being a proof of the concept are reported. The simulations were followed by w

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Mahmudin, Faisal, Ahmad Fitriadhy, and Audrye Kezya Nathania Rampo. "Simulation of Small-Scale Wind Turbine Performance with Taperless Blade." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 123, no. 1 (2024): 1–11. http://dx.doi.org/10.37934/arfmts.123.1.111.

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Utilizing wind turbines typically involves a large-scale project with extremely huge wind turbine sizes. Because of this, the use of wind turbines in Indonesia is not yet very common and widespread among the community. Basically, a wind turbine has blades; the number of blades on a wind turbine can affect the overall performance of the turbine. Large-scale wind turbine projects usually implement tapered blades, while small-scale projects use taperless blades. Therefore, in this research, a horizontal-axis wind turbine with taperless blades will be used as the object of study to find out the op

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Seifert, Janna Kristina, Martin Kraft, Martin Kühn, and Laura J. Lukassen. "Correlations of power output fluctuations in an offshore wind farm using high-resolution SCADA data." Wind Energy Science 6, no. 4 (2021): 997–1014. http://dx.doi.org/10.5194/wes-6-997-2021.

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Abstract. Space–time correlations of power output fluctuations of wind turbine pairs provide information on the flow conditions within a wind farm and the interactions of wind turbines. Such information can play an essential role in controlling wind turbines and short-term load or power forecasting. However, the challenges of analysing correlations of power output fluctuations in a wind farm are the highly varying flow conditions. Here, we present an approach to investigate space–time correlations of power output fluctuations of streamwise-aligned wind turbine pairs based on high-resolution su

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Abad, Gonzalo, Ander Plaza, and Gorka Kerejeta. "Performance Evaluation of Small Wind Turbines Under Variable Winds of Cities: Case Study Applied to an Ayanz Wind Turbine with Screw Blades." Smart Cities 7, no. 6 (2024): 3241–88. http://dx.doi.org/10.3390/smartcities7060126.

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Small wind turbines placed at city locations are affected by variable-speed winds that frequently change direction. Architectural constructions, buildings of different heights and abrupt orography of Cities make the winds that occur at City locations more variable than in flat lands or at sea. However, the performance of Small-wind turbines under this type of variable wind has not been deeply studied in the specialised literature. Therefore, this article analyses the behaviour of small wind turbines under variable and gusty winds of cities, also considering three types of power electronics con

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Watanabe, Seiya, and Changhong Hu. "Lattice Boltzmann simulation for wake interactions of aligned wind turbines using actuator line model with turbine control." Journal of Physics: Conference Series 2767, no. 5 (2024): 052020. http://dx.doi.org/10.1088/1742-6596/2767/5/052020.

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Abstract A wind turbine wake causes a decrease in wind speed and an increase in turbulence intensity. The wind turbine wake interaction is essential for predicting the power output of a wind farm consisting of many wind turbines. This research proposes a CFD method able to reproduce wake interactions and power outputs of multiple wind turbines with high speed and accuracy. Large eddy simulations with the lattice Boltzmann method are used for fluid calculations, specifically for large-scale CFD simulations. The wind turbines are represented using an actuator line model. Optimal power generation

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Cai, Xin, Yazhou Wang, Bofeng Xu, and Junheng Feng. "Performance and Effect of Load Mitigation of a Trailing-Edge Flap in a Large-Scale Offshore Wind Turbine." Journal of Marine Science and Engineering 8, no. 2 (2020): 72. http://dx.doi.org/10.3390/jmse8020072.

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As a result of the large-scale trend of offshore wind turbines, wind shear and turbulent wind conditions cause significant fluctuations of the wind turbine’s torque and thrust, which significantly affect the service life of the wind turbine gearbox and the power output stability. The use of a trailing-edge flap is proposed as a supplement to the pitch control to mitigate the load fluctuations of large-scale offshore wind turbines. A wind turbine rotor model with a trailing-edge flap is established by using the free vortex wake (FVW) model. The effects of the deflection angle of the trailing-ed

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Susilo, Topan Yuli, Ranto Ranto, and Ngatou Rohman. "Pengembangan E-Modul Turbin Angin (Savonius Heliks) dengan Model 4-D Pada Mata Kuliah Energi Terbarukan di Prodi Pendidikan Teknik Mesin Universitas Sebelas Maret Surakarta." NOZEL Jurnal Pendidikan Teknik Mesin 5, no. 4 (2023): 237. http://dx.doi.org/10.20961/nozel.v5i4.77361.

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Renewable energy technologies are currently being developed, one of which is wind turbines. There are two types of wind turbines, namely the vertical axis and the horizontal axis. One of the horizontal wind turbines is the helical savonius. The development of this technology can help the development of renewable energy. The Mechanical Engineering Education study program is testing wind turbines to help students understand wind turbine technology. Through this research a practicum module will be created to assist students in carrying out wind turbine practicum.This electronic module validates t

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Kuwana, Anna, Xue Yan Bai, Dan Yao, and Haruo Kobayashi. "Numerical Simulation for the Starting Characteristics of a Wind Turbine." Advanced Engineering Forum 38 (November 2020): 215–21. http://dx.doi.org/10.4028/www.scientific.net/aef.38.215.

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There are many types of wind turbine. Large propeller-type wind turbines are used mainly for large wind farms and offshore wind power generation. Small vertical-axis wind turbines (VAWTs) are often used in distributed energy systems. In previous studies on wind turbines, the basic characteristics such as torque coefficient have often been obtained during rotation, with the turbine rotating at a constant speed. Such studies are necessary for the proper design of wind turbines. However, it is also necessary to conduct research under conditions in which the wind direction and wind speed change ov

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Cao, Jiufa, Weijun Zhu, Xinbo Wu, Tongguang Wang, and Haoran Xu. "An Aero-acoustic Noise Distribution Prediction Methodology for Offshore Wind Farms." Energies 12, no. 1 (2018): 18. http://dx.doi.org/10.3390/en12010018.

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Recently attention has been paid to wind farm noise due to its negative health impact, not only on human beings, but also to marine and terrestrial organisms. The current work proposes a numerical methodology to generate a numerical noise map for a given wind farm. Noise generation from single wind turbines as well as wind farms has its basis in the nature of aerodynamics, caused by the interactions between the incoming turbulent flow and the wind turbine blades. Hence, understanding the mechanisms of airfoil noise generation, demands access to sophisticated numerical tools. The processes of m

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Gideon, Samuel, and Mimie Purnama. "PENEMPATAN TURBIN ANGIN OPTIMAL UNTUK GEDUNG PUSAT PEMBELAJARAN ARNTZ-GEISE 2 UNIVERSITAS KATOLIK PARAHYANGAN, BANDUNG UNTUK MENGHASILKAN ENERGI BERSIH SEPANJANG TAHUN." Riset Arsitektur (RISA) 8, no. 04 (2024): 388–405. https://doi.org/10.26593/risa.v8i04.8586.388-405.

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Abstract-In today’s climate condition, green building technologi is no longer a luxury but a necessity. Wind is one of the natural resources that we can harvest using wind turbines to generate clean energy. Unfortunately, winds that blows in cities on tropical countries tends to have less speed than ones that blows in other climates and areas. Fortunately, winds speed can be manipulated through building orientation and forms to produce high speed winds that can be used by wind turbines to generate clean energy. There are many wind phenomenons that occurs due to building orientation and form, s

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Dickler, Sebastian, Thorben Wintermeyer-Kallen, János Zierath, et al. "Full-scale field test of a model predictive control system for a 3 MW wind turbine." Forschung im Ingenieurwesen 85, no. 2 (2021): 313–23. http://dx.doi.org/10.1007/s10010-021-00467-w.

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AbstractModel predictive control (MPC) is a strong candidate for modern wind turbine control. While the design of model predictive wind turbine controllers in simulations has been extensively investigated in academic studies, the application of these controllers to real wind turbines reveals open research challenges. In this work, we focus on the validation of a linear time-variant MPC system for a 3 MW wind turbine in a full-scale field test. First, the study proves the MPC’s capability to control the real wind turbine in the partial load region. Compared to the turbine’s baseline PID control

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