Journal articles on the topic 'Wind turbine design'
To see the other types of publications on this topic, follow the link: Wind turbine design.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Wind turbine design.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Stanley, Andrew P. J., and Andrew Ning. "Coupled wind turbine design and layout optimization with nonhomogeneous wind turbines." Wind Energy Science 4, no. 1 (January 30, 2019): 99–114. http://dx.doi.org/10.5194/wes-4-99-2019.
Full textAbstract:
Abstract. In this study, wind farms were optimized to show the benefit of coupling complete turbine design and layout optimization as well as including two different turbine designs in a fixed 1-to-1 ratio in a single wind farm. For our purposes, the variables in each turbine optimization include hub height, rotor diameter, rated power, tower diameter, tower shell thickness, and implicit blade chord-and-twist distributions. A 32-turbine wind farm and a 60-turbine wind farm were both considered, as well as a variety of turbine spacings and wind shear exponents. Structural constraints as well as turbine costs were considered in the optimization. Results indicate that coupled turbine design and layout optimization is superior to sequentially optimizing turbine design, then turbine layout. Coupled optimization results in an additional 2 %–5 % reduction in the cost of energy compared to optimizing sequentially for wind farms with turbine spacings of 8.5–11 rotor diameters. Smaller wind farms benefit even more from coupled optimization. Furthermore, wind farms with closely spaced wind turbines can greatly benefit from nonuniform turbine design throughout the farm. Some of these wind farms with heterogeneous turbine design have an additional 10 % cost-of-energy reduction compared to wind farms with identical turbines throughout the farm.
2
Naung, Shine Win, and Tomoyuki Miyashita. "Optimum Design of Wind Turbine Drivetrain." Abstracts of the international conference on advanced mechatronics : toward evolutionary fusion of IT and mechatronics : ICAM 2015.6 (2015): 152–53. http://dx.doi.org/10.1299/jsmeicam.2015.6.152.
Full text
3
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 (June 18, 2022): 36–43. http://dx.doi.org/10.37934/arfmts.95.1.3643.
Full textAbstract:
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 through themselves with more velocity. The main objective of this research is to optimize the nozzle design for vertical axis wind turbine (VAWT). Specifically, this study investigates the effect of wind velocity on different shapes of nozzle to develop the suitable nozzle for the wind turbine. For that purpose, the ideologies of contraction nozzle have been studied. Different nozzle design concepts were developed and the wind speed for each design is simulated.
4
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 (October 9, 2018): 74. http://dx.doi.org/10.14419/ijet.v7i4.13.21333.
Full textAbstract:
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. Both wind turbines have undergone series of tests before the voltage and current output from the wind turbines are collected. The result of the test is used to compare the performance of both wind turbines that will imply which design has the best efficiency and performance for Malaysia’s tropical climate. While HAWT can generate higher voltage (up to 8.99 V at one point), it decreases back to 0 V when the wind angle changes. VAWT, however, can generate lower voltage (1.4 V) but changes in the wind angle does not affect its voltage output at all. The analysis has proven that VAWT is significantly more efficient to be built and utilized for Malaysia’s tropical and windy climates. This is also an initiative project to gauge the possibility of building wind turbines, which could be built on the extensive and windy areas surrounding Malaysian airports.
5
Muljadi, E., L. Flowers, J. Green, and M. Bergey. "Electric Design of Wind-Electric Water Pumping Systems." Journal of Solar Energy Engineering 118, no. 4 (November 1, 1996): 246–52. http://dx.doi.org/10.1115/1.2871786.
Full textAbstract:
Wind turbine technology has been used to pump water since ancient history. Direct mechanically coupled wind turbines are the most common method for pumping water to croplands and livestock. Many more recent wind turbines are electrically coupled, with the water pump connected to the wind turbine via a motor-generator connection. With electrical coupling, the distance and location of the water pump is independent of the location of the wind turbine. Therefore, the wind turbine can be located at an optimal wind energy site while the water pump is close to the water well or water tank. This paper analyzes a water-pumping system consisting of a wind turbine, a permanent magnet synchronous generator, an induction motor, and a centrifugal-type water pump.
6
Afjeh, Abdollah A., Brett Andersen, Jin Woo Lee, Mahdi Norouzi, and Efstratios Nikolaidis. "Advanced Concept Offshore Wind Turbine Development." Journal of Advanced Computational Intelligence and Intelligent Informatics 18, no. 5 (September 20, 2014): 728–35. http://dx.doi.org/10.20965/jaciii.2014.p0728.
Full textAbstract:
Development of novel offshore wind turbine designs and technologies are necessary to reduce the cost of offshore wind energy since offshore wind turbines need to withstand ice and waves in addition to wind, a markedly different environment from their onshore counterparts. This paper focuses on major design challenges of offshore wind turbines and offers an advanced concept wind turbine that can significantly reduce the cost of offshore wind energy as an alternative to the current popular designs. The design consists of a two-blade, downwind rotor configuration fitted to a fixed bottom or floating foundation. Preliminary results indicate that cost savings of nearly 25% are possible compared with the conventional upwind wind turbine designs.
7
Jamieson, P. M., and A. Jaffrey. "Advanced Wind Turbine Design." Journal of Solar Energy Engineering 119, no. 4 (November 1, 1997): 315–20. http://dx.doi.org/10.1115/1.2888039.
Full textAbstract:
Garrad Hassan have a project in progress funded by the U.K. Department of Trade & Industry (DTI) to assess the prospects and Cost benefits of advanced wind turbine design. In the course of this work, a new concept, the coned rotor design, has been developed. This enables a wind turbine system to operate in effect with variable rotor diameter augmenting energy capture in light winds and shedding loads in storm conditions. Comparisons with conventional design suggest that a major benefit in reduced cost of wind-generated electricity may be possible.
8
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 (October 1, 2022): 012075. http://dx.doi.org/10.1088/1755-1315/1084/1/012075.
Full textAbstract:
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 testing the wind turbines on CFD simulation. Three different kinds of wind turbines have been tested under the same conditions on different parameters. Wind turbines having 4 blades have been compared with curved blade wind turbines with the respective amount of blades, and results are drawn.
9
Altan, Burcin Deda, and Afsin Gungor. "Examination of the Effect of Triangular Plate on the Performances of Reverse Rotating Dual Savonius Wind Turbines." Processes 10, no. 11 (November 3, 2022): 2278. http://dx.doi.org/10.3390/pr10112278.
Full textAbstract:
In the present study, the performance of the Savonius wind turbine in designs with dual turbines rotating opposite to each other was examined. To improve the performance of the Savonius wind turbine in the dual turbine design, a triangular plate was placed in front of the turbines. The effects of the geometric parameters of this triangular plate which was placed on the turbine performance were studied. The numerical analyses performed were confirmed by the experimental data of a previous study in the literature. The performance values of Savonius wind turbines were analyzed by numerical analysis, the accuracy of which was proven by experimental data. ANSYS Fluent, a computational fluid dynamics (CFD) program, was used for the performance analysis. In the first stage, the maximum power coefficient (Cp) of the conventional Savonius wind turbine was obtained around 0.17. With the optimum geometric parameter studies, the maximum power coefficient of the Savonius wind turbine in the triangular plate dual turbine design was determined to be around 0.22. Thus, it was found that the power coefficient obtained by a single Savonius wind turbine in a triangular plate dual turbine design was around 30% higher compared to the power coefficient of the conventional Savonius wind turbine.
10
Valiev, M., R. Stepanov, V. Pakhov, M. Salakhov, V. Zherekhov, and G. N. Barakos. "Analytical and experimental study of the integral aerodynamic characteristics of low-speed wind turbines." Aeronautical Journal 118, no. 1209 (November 2014): 1229–44. http://dx.doi.org/10.1017/s0001924000009957.
Full textAbstract:
Abstract This paper proposes a new wind turbine concept suitable for low-speed winds. The design is studied using a combination of wind-tunnel experimentation and aerodynamic theory. After processing the experimental results, and after comparison with theory, the optimal conditions for the operation of the turbine are identified. Experimental and theoretical results suggest that the design offers a realistic alternative to conventional horizontal axis wind turbines. In addition, the proposed turbine has good power efficiency at low wind speeds, and is suitable for deployment in areas not yet favoured by wind farm developers.
11
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 (November 1, 2021): 012032. http://dx.doi.org/10.1088/1755-1315/850/1/012032.
Full textAbstract:
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 converted into mechanical energy. Many concepts and technologies are being used to improve the efficiency of wind turbines while lowering their maintenance costs. Wind turbines based on their axis orientation are classified as vertical axis and horizontal axis. Vertical axis wind turbines are not as widespread as their horizontal-axis counterparts due to their lower efficiency. In this study, we will use a Savonius vertical axis wind turbine to investigate a way of enhancing its efficiency by installing solar panels on its vertical blades and determining the best performance angle at which the turbine should be kept achieving maximum efficiency. Computation fluid dynamic analysis and thermal and structural analysis has been performed to check the efficiency of the designed blade. As a result, an optimized wind turbine design has been developed.
12
Wang, Shou Bin, and Wei Gong. "Design of Wind Turbine Vibration Monitoring System." Advanced Materials Research 694-697 (May 2013): 1135–38. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.1135.
Full textAbstract:
In order to ensure safety of wind turbine operation and to reduce the occurrence of faults as well as to improve the reliability of wind turbine operation, a vibration monitoring for wind turbine is developed. In this paper, it analyses the enlargement of all the parts of the structure and the working mechanism, the research method of wind turbine operation vibration is introduced, with the focus being the use of the sensor principle. Finally the hardware design and software of this system is introduced and the main function of this system is described, which realizes condition monitoring of the work state of wind turbines.
13
Wu, Chun Mei, Chun Yu Xiong, and Yong Zhao. "Based on the Research of Wind Turbine Vibration Performance and Aerodynamic Performance." Applied Mechanics and Materials 733 (February 2015): 493–96. http://dx.doi.org/10.4028/www.scientific.net/amm.733.493.
Full textAbstract:
Wind turbines is one of the most important components of the wind turbine, design for wind turbines with good wind turbines is the basis of high wind energy utilization coefficient and large economic benefits. Using the theory of Wilson pneumatic designed 100 W horizontal axis wind turbine, in the process of design and design parameters on the vibration performance correction. Finally on rotor vibration modal experiment and pneumatic external characteristic experiment, the experimental results show that the design of the wind turbine at low wind speed can meet the design of the wind energy utilization coefficient, and the wind machine to avoid the resonance region speed at run time, extend the life of the rotor, so as to reduce the design cost.
14
Wang, Lin, Xinzi Tang, and Xiongwei Liu. "Blade Design Optimisation for Fixed-Pitch Fixed-Speed Wind Turbines." ISRN Renewable Energy 2012 (August 16, 2012): 1–8. http://dx.doi.org/10.5402/2012/682859.
Full textAbstract:
Fixed-pitch fixed-speed (FPFS) wind turbines have some distinct advantages over other topologies for small wind turbines, particularly for low wind speed sites. The blade design of FPFS wind turbines is fundamentally different to fixed-pitch variable-speed wind turbine blade design. Theoretically, it is difficult to obtain a global mathematical solution for the blade design optimisation. Through case studies of a given baseline wind turbine and its blade airfoil, this paper aims to demonstrate a practical method for optimum blade design of FPFS small wind turbines. The optimum blade design is based on the aerodynamic characteristics of the airfoil, that is, the lift and drag coefficients, and the annual mean wind speed. The design parameters for the blade optimisation include design wind speed, design tip speed ratio, and design attack angle. A series of design case studies using various design parameters are investigated for the wind turbine blade design. The design outcomes are analyzed and compared to each other against power performance of the rotor and annual energy production. The design outcomes from the limited design cases demonstrate clearly which blade design provides the best performance. This approach can be used for any practice of FPFS wind turbine blade design and refurbishment.
15
Anderson, Benjamin, Pietro Bortolotti, and Nick Johnson. "Development of an open-source segmented blade design tool." Journal of Physics: Conference Series 2265, no. 3 (May 1, 2022): 032023. http://dx.doi.org/10.1088/1742-6596/2265/3/032023.
Full textAbstract:
Abstract As wind turbines continue to grow ever larger to reduce the cost of energy, their blades follow suit, with the largest commercial offshore blades extending past 100 m. Massive blades such as these raise key transportation and manufacturing challenges, especially for land-based turbines. Segmented blades are one solution and are garnering increased industry and research interest. In this work, a detailed mechanical joint model is integrated into the Wind-Plant Integrated System Design and Engineering Model (WISDEM®), which will facilitate future segmented blade research and optimization. WISDEM is used to design a wind turbine with 100-m segmented blades. This wind turbine design is compared to other machines with 100-m monolithic blades designed for rail-transportability. The designs are compared in terms of blade mass and cost, turbine capital cost, annual energy production, and levelized cost of energy, with monolithic designs being the lightest and most economical. However, this result may vary by wind plant location. A variety of segmentation joint types exist, and they will inevitably vary in parameters such as cost, spanwise location, and physical characteristics. This work examines the sensitivity of wind turbine design drivers and annual energy production to a variety of the aforementioned parameters, using the open-source wind turbine design codes OpenFAST and WISDEM, finding that joint mass, stiffness, and location can have significant effects on design drivers.
16
Kurniawati, Diniar Mungil. "Investigasi Performa Turbin Angin Crossflow Dengan Simulasi Numerik 2D." JTT (Jurnal Teknologi Terpadu) 8, no. 1 (April 27, 2020): 7–12. http://dx.doi.org/10.32487/jtt.v8i1.762.
Full textAbstract:
Wind turbine is a solution to harness of renewable energy because it requires wind as the main energy. Wind turbine work by extracting wind energy into electrical energy. Crossflow wind turbine is one of the wind turbines that are developed because it does not need wind direction to produce maximum efficiency. Crossflow wind turbines work with the concept of multiple interactions, namely in the first interaction the wind hits the first level of turbine blades, then the interaction of the two winds, the remainder of the first interaction enters the second level blades before leaving the wind turbine. In the design of crossflow wind turbine the diameter ratio and slope angle are important factors that influence to determine of performance in crossflow wind turbine. In this study varied the angle of slope 90 ° and variations in diameter ratio of 0.6 and 0.7. The study aimed to analyze the effect of diameter ratio and slope angle in performance of the crossflow wind turbine. This research was conducted with numerical simulation through 2D CFD modeling. The results showed that the best performance of crossflow wind turbine occurred at diameter ratio variation 0.7 in TSR 0.3 with the best CP value 0.34.
17
Cho, Soo-Yong, Sang-Kyu Choi, Jin-Gyun Kim, and Chong-Hyun Cho. "An experimental study of the optimal design parameters of a wind power tower used to improve the performance of vertical axis wind turbines." Advances in Mechanical Engineering 10, no. 9 (September 2018): 168781401879954. http://dx.doi.org/10.1177/1687814018799543.
Full textAbstract:
In order to augment the performance of vertical axis wind turbines, wind power towers have been used because they increase the frontal area. Typically, the wind power tower is installed as a circular column around a vertical axis wind turbine because the vertical axis wind turbine should be operated in an omnidirectional wind. As a result, the performance of the vertical axis wind turbine depends on the design parameters of the wind power tower. An experimental study was conducted in a wind tunnel to investigate the optimal design parameters of the wind power tower. Three different sizes of guide walls were applied to test with various wind power tower design parameters. The tested vertical axis wind turbine consisted of three blades of the NACA0018 profile and its solidity was 0.5. In order to simulate the operation in omnidirectional winds, the wind power tower was fabricated to be rotated. The performance of the vertical axis wind turbine was severely varied depending on the azimuthal location of the wind power tower. Comparison of the performance of the vertical axis wind turbine was performed based on the power coefficient obtained by averaging for the one periodic azimuth angle. The optimal design parameters were estimated using the results obtained under equal experimental conditions. When the non-dimensional inner gap was 0.3, the performance of the vertical axis wind turbine was better than any other gaps.
18
Zheng, Li, Zhang Wenda, Han Ruihua, and Tian Yongsheng. "Design and Performance Analysis of Distributed Equal Angle Spiral Vertical Axis Wind Turbine." Recent Patents on Engineering 14, no. 1 (June 21, 2020): 120–32. http://dx.doi.org/10.2174/1872212113666191002150551.
Full textAbstract:
Background: The wind turbine is divided into a horizontal axis and a vertical axis depending on the relative positions of the rotating shaft and the ground. The advantage of the choke wind turbine is that the starting torque is large and the starting performance is good. The disadvantage is that the rotation resistance is large, the rotation speed is low, the asymmetric flow occurs when the wind wheel rotates, the lateral thrust is generated, and the wind energy utilization rate is lowered. How to improve the wind energy utilization rate of the resistance wind turbine is an important issue to be solved by the wind power technology. Objective: The nautilus isometric spiral wind turbines studied in this paper have been introduced and analyzed in detail, preparing for the further flow analysis and layout of wind turbines, improving the wind energy utilization rate of wind turbines, introducing patents of other structures and output characteristics of its generator set. Methods: Combined with the flow field analysis of ANSYS CFX software, the numerical simulation of the new wind turbine was carried out, and the aerodynamic performance of the new vertical axis wind turbine was analyzed. The mathematical model and control model of the generator were established by the maximum power control method, and the accuracy of the simulation results was verified by the measured data. Results: The basic parameters of the new wind turbine tip speed ratio, torque coefficient and wind energy utilization coefficient are analyzed. Changes in wind speed, pressure and eddy viscosity were investigated. Three-dimensional distribution results of wake parameters such as wind speed and pressure are obtained. By simulating the natural wind speed, the speed and output current of the generator during normal operation are obtained. Conclusion: By analyzing the wind performance and power generation characteristics of the new wind turbine, the feasibility of the new wind turbine is determined, which provides reference and reference for the optimal design and development of the wind turbine structure.
19
Hendriana, Dena, Eka Budiarto, Alexander Clements, and Arko Djajadi. "Design comparison of wind turbines for low wind speed." ICONIET PROCEEDING 2, no. 3 (February 13, 2019): 222–29. http://dx.doi.org/10.33555/iconiet.v2i3.36.
Full textAbstract:
Wind energy is one of the potential renewable energy, but the applications have to beadjusted to the available wind characteristic in the area. In Indonesia, the wind speed is inaverage not very high, only around 4 m/s. Therefore the wind turbine design have to be adjustedfor usage in Indonesia. In this research, two wind turbine designs are compared. One design isof the form Horizontal-Axis Wind Turbine (HAWT) and the other is of the form Vertical-AxisWind Turbine (VAWT). Both designs are optimized for wind speed of 4 m/s. The comparisonsare done using computer simulation software OpenFOAM. The result shows VAWT design canproduce similar power with smaller turbine dimension than the HAWT design.
20
Grapow, Filip, Dominika Raszewska, Rafał Skalski, Jeremiasz Czarnecki, Katarzyna Telega, Marcin Miller, Paweł Rogowski, and Małgorzata Prociów. "Small wind, big potential: HAWT design case study." MATEC Web of Conferences 234 (2018): 01005. http://dx.doi.org/10.1051/matecconf/201823401005.
Full textAbstract:
In this paper the project of a small wind turbine for urban application has been described. The project of a horizontal small wind turbine presented in this paper was made for the purposes of taking part in ISWTC, but the main target was to develop a turbine for urbanized regions starting in conditions of low wind speed. In this paper a description of aerodynamic and mechanical design are presented; also, control and safety systems are discussed. This turbine has the potential to become a cheap energy generator for household use and can be a competitor of vertical small wind turbines.
21
Gözcü, Ozan, Stavros Kontos, and Henrik Bredmose. "Dynamics of two floating wind turbines with shared anchor and mooring lines." Journal of Physics: Conference Series 2265, no. 4 (May 1, 2022): 042026. http://dx.doi.org/10.1088/1742-6596/2265/4/042026.
Full textAbstract:
Abstract Floating wind farms present the opportunity to harvest wind resources located in deep water sites. Shared mooring designs can contribute in making floating wind energy more cost-competitive, and it is important to understand the new system dynamics that arise. We are presenting here HAWC2Farm, an extension of HAWC2 that can model multiple wind turbines with shared mooring lines. We apply the new modeling capabilities to simulate two 15 MW floating wind turbines on spar floaters with shared mooring lines. We consider two different sites and we identify and compare the natural frequencies and mode shapes of the shared mooring designs with those of an individual moored turbine. Furthermore, we investigate the influence of design parameters on the systems’ natural frequencies and we show that it is possible for a shared mooring design to achieve similar characteristics as a single turbine design. Finally, we test the response of the shared mooring design in steady wind and regular waves and find that the surge displacement of the upstream turbine and its mooring line loads are considerably larger compared to the single turbine case.
22
Xu, Zhi Qiang, and Jian Huang. "Research on Wind Turbine Blade Loads and Dynamics Factors." Advanced Materials Research 1014 (July 2014): 124–27. http://dx.doi.org/10.4028/www.scientific.net/amr.1014.124.
Full textAbstract:
Wind turbines consists of three key parts, namely, wind wheels (including blades, hub, etc.), cabin (including gearboxes, motors, controls, etc.) and the tower and Foundation. Wind turbine wheel is the most important part ,which is made up of blades and hubs. Blade has a good aerodynamic shape, which will produce aerodynamic in the airflow rotation, converting wind energy into mechanical energy, and then, driving the generator into electrical energy by gearbox pace. Wind turbine operates in the natural environment, their load wind turbine blades are more complex. Therefore load calculations and strength analysis for wind turbine design is very important. Wind turbine blades are core components of wind turbines, so understanding of their loads and dynamics by which the load on the wind turbine blade design is of great significance.
23
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.
Full textAbstract:
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 for further improvement. Moreover, we have made the recommendations for removal of disadvantages and development of advantages of these wind turbines. The article offers a number of patents which can regulate the angular speed of rotation of the wind turbine, the size of the rotating moment and, accordingly, its power depending on the natural wind speed. In particular, there is a patent for a design of the blade with varying dimensions depending on the air stream; the introduction of such device will increase the aerodynamic characteristics of the blade. The use of the wind guide screens allows us to start the wind turbine at wind speed from 0.5 m/s. It promotes the effective performance in the range of wind speed from 0.5 m/s to 4.5 m/s, and the wind guide screens regulate the air stream velocity in the wind turbine volume at speed from 4.5 m/s to 15.0 m/s. At gale-force winds, the wind guide screens are capable of cover the wind turbine preventing its destruction. The use of such wind turbines will positively affect the development of wind energy in Russia.
24
Schubel, Peter J., and Richard J. Crossley. "Wind Turbine Blade Design." Energies 5, no. 9 (September 6, 2012): 3425–49. http://dx.doi.org/10.3390/en5093425.
Full text
25
He, Yi Ming, and Xian Yi Qian. "Design of Wind Power Turbine's Main Components and Computation of its Output Power." Applied Mechanics and Materials 195-196 (August 2012): 23–28. http://dx.doi.org/10.4028/www.scientific.net/amm.195-196.23.
Full textAbstract:
We have mainly studied the main structure of wind power turbines components in accordance with the principle aerodynamics. We also have taken horizontal axis wind power turbine for example and studied the basic structure and producing technology about wheel, base and other equipments. We have computed the wind power turbines output power and efficiency, and compared with some kinds of different wind power turbines output power and efficiency. All what have studied is important to design wind power turbine.
26
Roddier, Dominique, and Joshua Weinstein. "Floating Wind Turbines." Mechanical Engineering 132, no. 04 (April 1, 2010): 28–32. http://dx.doi.org/10.1115/1.2010-apr-2.
Full textAbstract:
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 with vessels and platforms, or Principia’s DIODORE, to predict the hydrodynamic quantities, such as added mass, damping and wave exciting forces, which are used as a kernel in the time domain simulations. In marine projects, design tools typically need to be validated against model tests in a wave tank or basin. Such work is performed frequently, and scaling laws are very well defined.
27
Madadnia, Jafar, Deepak Kala, Dheerej Pillai, and Homa Koosha. "Design, Build and Testing of a Noise-Free Twin Shaft Co-Axial Wind Turbine for UTS Buildings." Advanced Materials Research 452-453 (January 2012): 1089–93. http://dx.doi.org/10.4028/www.scientific.net/amr.452-453.1089.
Full textAbstract:
Management and control of noise pollution in wind turbines are important to integrate wind turbines in building and urban areas. A scaled model of a horizontal-co-axial wind turbine was designed, built and tested in the wind tunnel of University of Technology Sydney (UTS) and its characteristics and aerodynamic-noise emissions were analyzed. The noise reduction capability of the horizontal-twin-shaft wind turbines was compared with wind turbines with the conical entry nozzle (stator), duct-shroud-envelop and vertical shafts. Air velocity, shaft rpm, electric-power generation, noise frequency and amplitude were measured. It was found that up to 15% reduction in the amplitude (dB) of noise emisit from twin shaft wind turbine compared to the single shaft bench mark turbine. The noise analysis performed as a result of these experiments may be used in the design and selection of a building integrated horizontal axis wind turbine for applications at UTS buildings.
28
Park, Jinje, Changhyun Kim, Minh-Chau Dinh, and Minwon Park. "Design of a Condition Monitoring System for Wind Turbines." Energies 15, no. 2 (January 10, 2022): 464. http://dx.doi.org/10.3390/en15020464.
Full textAbstract:
Renewable energy is being adopted worldwide, and the proportion of offshore wind turbines is increasing. Offshore wind turbines operate in harsh weather conditions, resulting in various failures and high maintenance costs. In this paper, a condition diagnosis model for condition monitoring of an offshore wind turbine has been developed. The generator, main bearing, pitch system, and yaw system were selected as components subject to the condition monitoring by considering the failure rate and downtime of the wind turbine. The condition diagnosis model works by comparing real-time and predictive operating data of the wind turbine, and about four years of Supervisory Control and Data Acquisition (SCADA) data from a 2 MW wind turbine was used to develop the model. A deep neural network and an artificial neural network were used as machine learning to predict the operational data in the condition diagnosis model, and a confusion matrix was used to measure the accuracy of the failure determination. As a result of the condition monitoring derived by inputting SCADA data to the designed system, it was possible to maintain the failure determination accuracy of more than 90%. The proposed condition monitoring system will be effectively utilized for the maintenance of wind turbines.
29
Rancourt, D., L. Fréchette, C. Landry, and D. N. Mavris. "Design Space Exploration of Centimeter-Scale Wind Turbines using a Physics-Modified Optimization Formulation." Journal of Mechanics 30, no. 5 (May 22, 2014): 537–48. http://dx.doi.org/10.1017/jmech.2014.23.
Full textAbstract:
AbstractThis paper explores the design space of centimeter-scale micro wind turbines to power wireless sensors through an experimentally validated modeling and simulation environment. A stochastic optimizer is used to obtain a functional relationship between the minimum wind velocity required to find a feasible design and multiple constraints relevant to turbine designers, such as the maximum turbine radius, electrical power required, minimum voltage required and available generators. This relationship is created from an optimization formulation that uses knowledge from the underlying physics and previous optimizations. It is shown that the design space of micro wind turbines is significantly different than large wind turbines due to the low Reynolds number regime. Also, a strong coupling exists between the choice of generator and optimal wind turbine geometry to minimize the wind required to meet the requirements. Smaller generators are more appropriate for micro wind turbines only if a constraint is applied on the maximum radius of the turbine and if no minimum voltage is required for a fixed power output.
30
Sutrisno, Sigit Iswahyudi, and Setyawan Wibowo. "Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled Models." Energies 11, no. 9 (September 8, 2018): 2374. http://dx.doi.org/10.3390/en11092374.
Full textAbstract:
A preliminary study of a horizontal-axis wind turbine (HAWT) design is carried out using a wind tunnel to obtain its aerodynamic characteristics. Utilization of data from the study to develop large-scale wind turbines requires further study. This paper aims to discuss the use of wind turbine data obtained the wind-tunnel measurements to estimate the characteristics of wind turbines that have field size. One should measure the torque of two small-scale turbines inside the wind tunnel. The first small-scale turbine has a radius of 0.14 m, and the radius of the second small turbine is 0.19 m. Torque measurement results from both turbines were analyzed using the Buckingham π theorem to obtain a correlation between torsion and diameter variations. The obtained correlation equation was used to estimate the field measurement of turbine power with a radius of 1.2 m. The resulting correlation equation can be applied to approximate the energy generated by the turbine using the size of the field well in the operating area and the tip-speed ratio (λ) of the turbine design.
31
Asim Hamza, Ruba, and Amged Osman Abdelatif. "Foundations, Design, and Dynamic Performance of Wind Turbines: Overview and Challenges in Sudan." FES Journal of Engineering Sciences 9, no. 1 (February 22, 2021): 96–103. http://dx.doi.org/10.52981/fjes.v9i1.665.
Full textAbstract:
Sudan is one of the developing countries that suffers from a lack of electricity, where the national electrification rate is estimated at 38.5%. In order to solve this problem, it is possible to use renewable energy sources such as wind energy. Beside many aspects to be considered at the design of wind turbine foundations, more attention should be given to the geotechnical part. There are many types of foundations for wind turbines. The foundation must satisfy two design criteria: 1) It should be safe against bearing failure in soils under design loads and settlements during the life of the structure must not cause structural damage; 2) In addition to static loads, wind turbine foundations loads are extremely eccentrically and the loading is usually highly dynamic. Therefore, the selection of foundation type should consider these two criteria taking into account the nature and magnitude of these loads. This paper presents a review of different types of wind turbine foundations of focusing on on-shore wind turbine foundation types and the dynamic response of wind turbine. The paper also demonstrate experimentally the dynamic response of the wind turbines using wind tunnel facility test on a scaled model.
32
Zhao, Li Min. "MASTA Software for Wind Turbine Gearbox Design." Advanced Materials Research 490-495 (March 2012): 2259–63. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.2259.
Full textAbstract:
Wind turbine technology has developed rapidly in recent years. Increasing component reliability to achieve 20% wind energy will require advancements in component design, materials, and testing methods to validate wind-turbine components in the harshest environments. At the core of many of the solutions offered by SMT is MASTA, our fully integrated software tool for the complete design, analysis and optimization of transmission systems. Designers & engineers can use MASTA to rapidly predict key transmission performance characteristics and to identify any design faults or weaknesses before any manufacturing is started, saving both time and money. MASTA’s reliable analysis techniques can improve the power, performance, reliability, and cost effectiveness of wind turbines. The mix of commercial and proprietary software will provide a complete assessment and optimization of the wind turbine through detailed dynamic and static analysis of key component functions for their efficiency and design life.
33
Kanev, Stoyan. "Extreme turbulence control for wind turbines." Wind Engineering 41, no. 5 (August 12, 2017): 353–66. http://dx.doi.org/10.1177/0309524x17723204.
Full textAbstract:
The components of a wind turbine are designed to ensure that they can withstand the (fatigue and extreme) loads during their lifetime. To this end, the loads are analyzed using simulations under a large set of design conditions. One of the most demanding design condition, however, is operation under extreme turbulence conditions. For many turbines, this is a design-driving load case, as is the case with the InnWind 10-MW reference wind turbine. To present, reduction of loads during extreme turbulence using the wind turbine controller has not been considered explicitly. In this report, an extreme turbulence control algorithm is developed to actively reduce the ultimate loads on the main turbine components during operation in extreme turbulence conditions. The benefits of the algorithm are demonstrated in two test cases: with the InnWind 10-MW and InnWind 20-MW reference wind turbines.
34
Gong, Jie Kai, Wen Lei Sun, and An Wu. "1.5MW Wind Turbine Structural Dynamic Analysis." Key Engineering Materials 522 (August 2012): 323–26. http://dx.doi.org/10.4028/www.scientific.net/kem.522.323.
Full textAbstract:
In recent decades, the rapidly development of wind energy in China and the increasing of size and complexity of wind turbine have requested the improvement in wind turbine systematic design technology. A reasonable systematic dynamic model is an important part for systematic design of MW-class wind turbine. In structural dynamic model, the flexibility of blade and tower is represented by presumed mode shapes. In this paper, based on presumed mode shape method, the structural dynamic equations of wind turbine were constructed. Along with the wind field model, the wind turbine aeroelastic systematic dynamic model was constructed. Using the model, the deflections and load of blade, low speed shaft torque of a 1.5MW wind turbine have been calculated. Therefore, the construction of wind turbines systematic dynamic model has an important significance for the development of wind systematic design and manufacturing capacity.
35
Trương, Việt Anh, Quang Minh Huỳnh, and Hoài Thương Võ. "Design of a MPPT controller for permanent magnet synchronous generator driven wind turbine." Science & Technology Development Journal - Engineering and Technology 2, no. 4 (March 24, 2020): 251–57. http://dx.doi.org/10.32508/stdjet.v2i4.440.
Full textAbstract:
Wind and other renewable energies are more and more developed all over the world, especially in countries with high wind potential such as Vietnam, to replace fossil energy, which would be exhausted in the near future. One important characteristic of wind turbines is that at each different wind speed, there exists a working point, represented by the rotation speed and the mechanical power at the crankshaft of the wind turbine, at which the maximum mechanical power is obtained, called maximum power point (MPP). Therefore, when the wind speed changes, this working point must be changed to be able to extract the maximum power from the wind to improve the total efficiency of the wind turbine system. This, in a wind energy conversion system (WECS), is assigned to the maximum power point tracking (MPPT) controller. In this paper, a MPPT controller is proposed, based on an improved Perturb and Observe (P&O) algorithm, for wind turbines using permanent magnet synchronous generator (PMSG), to maximize energy without measuring the wind speed and power characteristics of the wind turbine. An experimental model is also designed and tested in laboratory conditions, in which two coefficients K1 and K2 are used in turn when the working point is far or close to the maximum power point. The experimental results show that the proposed MPPT controller allows the extraction of maximum power from wind turbines under variable wind speed without determining the wind speed and characteristics of the wind turbine system.
36
Ibrahim, Mohd Zamri, and Aliashim Albani. "Wind turbine rank method for a wind park scenario." World Journal of Engineering 13, no. 6 (December 5, 2016): 500–508. http://dx.doi.org/10.1108/wje-09-2016-0083.
Full textAbstract:
Purpose This paper aims to present a method of the wind turbine ranking, either stall or pitch-regulated wind turbine (WTG), to determine the suitability of wind turbine in a selected site. Design/methodology/approach The method included the wind park target capacity, the maximum hub-height, the standard rotor diameter and the characteristic of wind speed on the site. As the method had been applied to a wind park, with more than one wind turbine, the wake losses had been considered by subtracting the gross capacity factor. Besides, the turbine-site matching index (TSMI) was computed by dividing the net capacity factor with the total installed capital cost per kilowatt. Findings The components of the total installed capital cost were cost of turbine, installation, as well as operation and maintenance. Meanwhile, the target capacity index (TCI) was calculated by dividing the estimated wind park capacity with the target wind park capacity. Originality/value Both TSMI and TCI were used together to rank the wind turbines. Furthermore, a site in the eastern part of Kudat was selected as the case study site, where ten models of wind turbines were tested and ranked.
37
Lan, Zhi Chao, Lin Tao Hu, Yin Xue, and De Liang Zen. "The Modeling and Simulation of Wind Turbines and the Design of Pitch Control System." Advanced Materials Research 347-353 (October 2011): 2323–29. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2323.
Full textAbstract:
An increasing number of large wind turbines with a variable-speed variable pitch control mechanism are developed to improve the response speed of wind turbines and get maximum active power .Designing a reasonable pitch control system requires both a good control scheme and a more accurate wind turbine model. Base on the analysis of wind turbines’ principle, a local linearization model of wind turbine is built by using linearization method of small deviation in this paper. The model’s inputs are the data of wind speed and pitch angle, and the output is the active power. The accuracy of the model is verified by studying the active power output of wind turbine under different circumstances in which the pitch angle changes with a constant wind speed and the wind speed changes with a constant pitch angle. At the same time, this paper provides pitch control program based on internal model control after analyzing the disadvantages of PID pitch controller. When the wind speed is beyond the rating, the active power can be limited reasonably around the power rating of wind turbines by adjusting the pitch angle.
38
Albadan Molano, David Esteban, and Jorge Enrique Salamanca Céspedes. "Blade design for horizontal axis wind turbine: 3D model." Visión electrónica 13, no. 1 (January 31, 2019): 135–43. http://dx.doi.org/10.14483/22484728.14400.
Full textAbstract:
Wind energy is one of the best important sources of renewable energy and an excellent alternative for the transition to sustainable energy that the planet earth needs. The wind energy is contained in the air particles in movement, forming kinetic energy. This energy could be transformed into another type of energy such as electricity, through the use of wind turbines. It is known that horizontal axis wind turbines are more efficient energetically, the power output of a horizontal axis wind turbine depends of it aerodynamic performance; therefore, the correct geometric design of the propeller is essential for an optimum wind turbine. This article analyzes the most relevant aspects in the design of a wind propeller, using MATLAB® software to illustrate its behavior, suggests an ideal airfoil for wind applications to use in the 3D modeling of the blades using the computer assisted design, this blades has been built with a 3D printer.
39
Liu, Ming Xue, Ye Fa Hu, Ru Hao Dong, Shi Min Peng, and Hua Chun Wu. "Load Analysis and Structure Design of Small-Scale Maglev Wind Turbine." Applied Mechanics and Materials 624 (August 2014): 308–14. http://dx.doi.org/10.4028/www.scientific.net/amm.624.308.
Full textAbstract:
To effectively reduce friction torque and start-up wind speed, magnetic bearing was applied to the small-scale wind turbine. Load analysis is the primary task of the design for magnetic bearing in wind turbine. Based on a typical blade model, the aerodynamic performance of the impeller was simulated using Computational Fluid Dynamics (CFD) method. The characteristics and differences of the impeller’s aerodynamic performance under different wind speeds were analyzed and the aerodynamic loads were calculated as well. Moreover, the bearing capacity of magnetic bearing was calculated according to the forces on the spindle. A kind of permanent magnetic bearing (PMB) was designed for the radial supporting of the spindle in wind turbine. A prototype of the small-scale maglev wind turbine (SMWT) was presented, which provides some basis for the application of magnetic bearings in wind turbines.
40
Macháček, Michael, Stanislav Pospíšil, and Hrvoje Kozmar. "Scaling of wind turbine aerodynamics: wind tunnel experiments." MATEC Web of Conferences 313 (2020): 00053. http://dx.doi.org/10.1051/matecconf/202031300053.
Full textAbstract:
A small-scale wind turbine model was designed and manufactured to study its aerodynamic thrust force and the harvested flow energy. To provide a good understanding of the aerodynamics of the small-scale wind turbine at the low Reynolds number, the performance of three different types of blade airfoils was studied. The main motivation for the design of a new miniature wind turbine model was to achieve realistic values of the thrust force and the power coefficient on the model scale. A new blade profile with a thickness of 10% was designed and employed to reach the high tip-speed ratio, which is characteristic of contemporary wind turbines.
41
Mehta, Mihir, Michiel Zaaijer, and Dominic von Terzi. "Optimum Turbine Design for Hydrogen Production from Offshore Wind." Journal of Physics: Conference Series 2265, no. 4 (May 1, 2022): 042061. http://dx.doi.org/10.1088/1742-6596/2265/4/042061.
Full textAbstract:
Abstract To limit the consequences of climate change, generation from renewables coupled with large scale electrification is necessary. However, the deployment of renewables has its own challenges and not all sectors can be electrified. Hydrogen production from wind energy emerges as a promising solution that can alleviate these challenges. The current costs of green hydrogen production are high due to the high costs of electricity used for electrolysis. This study looks into the benefits of optimizing a turbine specifically for hydrogen production and the reduction in the Levelized Cost of Hydrogen (LCoH) compared to the use of conventional Levelized Cost of Energy (LCoE) optimized turbine. The case presented shows that turbines designed specifically for hydrogen production tend to have a higher specific power but these provide only a marginal advantage over using LCoE-optimized turbines for hydrogen production. Oversizing the electrolyzer compared to the turbine was shown to be a good design strategy. In the future, designing turbines specifically for hydrogen production could have certain benefits, depending on how the electrolyzer efficiencies, hydrogen production costs and the hydrogen market evolve.
42
Ozturk, Samet, Vasilis Fthenakis, and Stefan Faulstich. "Failure Modes, Effects and Criticality Analysis for Wind Turbines Considering Climatic Regions and Comparing Geared and Direct Drive Wind Turbines." Energies 11, no. 9 (September 3, 2018): 2317. http://dx.doi.org/10.3390/en11092317.
Full textAbstract:
The wind industry is looking for ways to accurately predict reliability and availability of newly installed wind turbines. Failure modes, effects and criticality analysis (FMECA) is a technique utilized to determine the critical subsystems of wind turbines. There are several studies in the literature which have applied FMECA to wind turbines, but no studies so far have used it considering different weather conditions or climatic regions. Furthermore, different wind turbine design types have been analyzed applying FMECA either distinctively or combined, but no study so far has compared the FMECA results for geared and direct-drive wind turbines. We propose to fill these gaps by using Koppen-Geiger climatic regions and two different turbine models of direct-drive and geared-drive concepts. A case study is applied on German wind farms utilizing the Wind Measurement & Evaluation Programme (WMEP) database which contains wind turbine failure data collected between 1989 and 2008. This proposed methodology increases the accuracy of reliability and availability predictions and compares different wind turbine design types and eliminates underestimation of impacts of different weather conditions.
43
Chen, Debin, Binbin Cheng, Dexin Li, Zhouyu Li, Tianye Zhao, and Jiasheng Zhang. "Design and Development of Wind Turbine Performance Analysis System Modeling." Journal of Physics: Conference Series 2179, no. 1 (January 1, 2022): 012025. http://dx.doi.org/10.1088/1742-6596/2179/1/012025.
Full textAbstract:
Abstract Wind turbines have been subjected to alternating loads for a long time, and the working environment is harsh, and their performance gradually deteriorates over time. Therefore, it is very necessary to understand the operating status of each component of the wind turbine unit through detailed evaluation of its performance through the monitoring data of the wind turbine unit.This paper designs and develops a wind turbine performance analysis software system based on the related business processes and functional requirements of wind farms. The system can calculate all the indicators related to wind farm and generating capacity, lost electricity and performance of wind farm, helping operators and analysts to achieve more comprehensive, in-depth and professional performance analysis of wind farm, so as to achieve the purpose of intelligent operation and maintenance of enterprises.
44
Mo, Qiu Yun, Fei Deng, Shuai Shuai Li, and Ke Yan Zhang. "Multidisciplinary Design Optimization for Small Vertical Wind Turbine Design." Applied Mechanics and Materials 571-572 (June 2014): 1083–86. http://dx.doi.org/10.4028/www.scientific.net/amm.571-572.1083.
Full textAbstract:
Multidisciplinary design optimization (MDO) represents the development direction of complex products design theory and method, it shows a huge advantage in solving complex optimization problems in engineering applications, for example product design. This paper briefly analyzes some existing problems of small vertical wind turbine, and puts forward using the theory of MDO in small vertical wind turbine structural optimization. Then,the paper analyzes and points out the key technology of using MDO theory to optimize small vertical wind turbine, and provides a new train of thought for further in-depth study of small vertical wind turbine to improve the overall performance of the small vertical wind turbine products.
45
Kamble, Saurabh J., and Prof Dr V. T. Tale. "Design of Solar Panel as Wind Turbine Blades." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (June 30, 2022): 704–13. http://dx.doi.org/10.22214/ijraset.2022.43840.
Full textAbstract:
Abstract: The purpose of this system is to generate the green energy by using wind and solar technology. In conventional wind turbines friction losses due to bearings are more which affect the performance of the turbine. To reduce this friction loss we implement the concept of magnetic levitation in our project. We fabricate Hybrid wind Turbine which produces electricity on the principle of faradays law produced can be Stored of electromagnetic induction as well as solar technology. The electricity can be stored continuously for whole day. Keywords: Hybridized Power Generation, PV cells, Renewable energy systems.
46
Bodkhe, Vishal Digambar. "Design and Development of Vortex Blade less Wind Turbine." International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (April 30, 2018): 2460–62. http://dx.doi.org/10.31142/ijtsrd12804.
Full text
47
Asim, Taimoor, Sheikh Zahidul Islam, Arman Hemmati, and Muhammad Saif Ullah Khalid. "A Review of Recent Advancements in Offshore Wind Turbine Technology." Energies 15, no. 2 (January 14, 2022): 579. http://dx.doi.org/10.3390/en15020579.
Full textAbstract:
Offshore wind turbines are becoming increasingly popular due to their higher wind energy harnessing capabilities and lower visual pollution. Researchers around the globe have been reporting significant scientific advancements in offshore wind turbines technology, addressing key issues, such as aerodynamic characteristics of turbine blades, dynamic response of the turbine, structural integrity of the turbine foundation, design of the mooring cables, ground scouring and cost modelling for commercial viability. These investigations range from component-level design and analysis to system-level response and optimization using a multitude of analytical, empirical and numerical techniques. With such wide-ranging studies available in the public domain, there is a need to carry out an extensive yet critical literature review on the recent advancements in offshore wind turbine technology. Offshore wind turbine blades’ aerodynamics and the structural integrity of offshore wind turbines are of particular importance, which can lead towards system’s optimal design and operation, leading to reduced maintenance costs. Thus, in this study, our focus is to highlight key knowledge gaps in the scientific investigations on offshore wind turbines’ aerodynamic and structural response. It is envisaged that this study will pave the way for future concentrated efforts in better understanding the complex behavior of these machines.
48
Jasa, John, Pietro Bortolotti, Daniel Zalkind, and Garrett Barter. "Effectively using multifidelity optimization for wind turbine design." Wind Energy Science 7, no. 3 (May 11, 2022): 991–1006. http://dx.doi.org/10.5194/wes-7-991-2022.
Full textAbstract:
Abstract. Wind turbines are complex multidisciplinary systems that are challenging to design because of the tightly coupled interactions between different subsystems. Computational modeling attempts to resolve these couplings so we can efficiently explore new wind turbine systems early in the design process. Low-fidelity models are computationally efficient but make assumptions and simplifications that limit the accuracy of design studies, whereas high-fidelity models capture more of the actual physics but with increased computational cost. This paper details the use of multifidelity methods for optimizing wind turbine designs by using information from both low- and high-fidelity models to find an optimal solution at reduced cost. Specifically, a trust-region approach is used with a novel corrective function built from a nonlinear surrogate model. We find that for a diverse set of design problems – with examples given in rotor blade geometry design, wind turbine controller design, and wind power plant layout optimization – the multifidelity method finds the optimal design using 38 %–58 % of the computational cost of the high-fidelity-only optimization. The success of the multifidelity method in disparate applications suggests that it could be more broadly applied to other wind energy or otherwise generic applications.
49
Gu, Lan, and Liming Zheng. "Wind Turbine Design and Assessment." Journal of Physics: Conference Series 2359, no. 1 (October 1, 2022): 012012. http://dx.doi.org/10.1088/1742-6596/2359/1/012012.
Full textAbstract:
Abstract This project aims to design a wind turbine for the bam area of Zhangjiakou City, which has a relative high wind speed because of the good development prospect of China’s wind power. Based on the detailed investigation of wind speed and direction in the bam area of Zhangjiakou, the project designs a wind turbine that can produce as much energy as possible. The turbine with a hub height of 70 m, hub radius 1 m and radius 40 m is designed by using optimal blade design methods. Finally, the performance of wind turbine can be simulated by using the theory of blade element momentum and the corresponding annual energy yield can be calculated.
50
Pedersen, Mads M., and Gunner C. Larsen. "Integrated wind farm layout and control optimization." Wind Energy Science 5, no. 4 (November 12, 2020): 1551–66. http://dx.doi.org/10.5194/wes-5-1551-2020.
Full textAbstract:
Abstract. The objective of this paper is to investigate the joint optimization of wind farm layout and wind farm control in terms of power production. A successful fulfilment of this goal requires the following: (1) an accurate and fast flow model, (2) selection of the minimum set of design parameters that rules or governs the problem, and (3) selection of an optimization algorithm with good scaling properties. For control of the individual wind farm turbines with the aim of wind farm production optimization, the two most obvious strategies are wake steering based on active wind turbine yaw control and wind turbine derating. The present investigation is limited to wind turbine derating. A high-speed linearized computational fluid dynamics (CFD) Reynolds-averaged Navier–Stokes (RANS) solver models the flow field and the crucial wind turbine wake interactions inside the wind farm. The actuator disc method is used to model the wind turbines, and utilizing an aerodynamic model, the design space of the optimization problem is reduced to only three variables per turbine – two geometric and one carefully selected variable specifying the individual wind turbine derating setting for each mean wind speed and direction. The full design space is spanned by these (2N+NdNsN) parameters, where N is the number of wind farm turbines, Nd is the number of direction bins, and Ns is the number of mean wind speed bins. This design space is decomposed into two subsets, which in turn define a nested set of optimization problems to achieve a significantly faster optimization procedure compared to a direct optimization based on the full design space. Following a simplistic sanity check of the platform functionality regarding wind farm layout and control optimization, the capability of the developed optimization platform is demonstrated on a Swedish offshore wind farm. For this particular wind farm, the analysis demonstrates that the expected annual energy production can be increased by 4 % by integrating the wind farm control into the design of the wind farm layout, which is 1.2 % higher than what is achieved by optimizing the layout only.