Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 415 for “"Wind Turbine"”.
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Structural Analyses of Wind Turbine Tower for 3 kW Horizontal Axis Wind Turbine
… of a steel tower for Cal Poly's 3 kW small wind turbine is presented. First, some general design aspects of the wind turbine tower are discussed: types, heights, and some other factors that can be considered for the design of wind turbine tower. Then, Cal Poly's wind turbine tower design is …
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Vertical Axis Hybrid Wind Turbine
… and practicality of vertical axis hybrid wind turbines (VAHWTs) for sustainable electricity generation and investigate the self-starting issue of VAWT. The development of sustainable energy sources has become increasingly critical in recent years because of growing worries about climate …
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The smart rotor wind turbine
The smart rotor is an upgrade to the wind turbine rotor that facilitates active modification of the blade aerodynamics, thus allowing enhanced control of the rotor loads. In this thesis a number of research areas relating to the smart rotor are explored and advanced. The synthesised wind field …
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Vertical axis wind turbine acoustics
… decentralised power generation. Small-scale wind power has seen significant growth in the last ten years, partly due to the political support for renewable energy and the introduction of Feed In Tariffs, which pay home owners for generating their own electricity. Due to their ability to …
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Redesign of a wind turbine hub
The current designs of wind turbine hubs contain many faults. The slew ring bearing that connects the blade to the hub takes on a large bending moment that in many cases causes the joints to fail and the blade to break off. The design of the hub is very large, heavy, and expensive to machine. The …
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Foundations for an offshore wind turbine
… Renewable energy sources, such as solar and wind, are abundant but have very low power densities. The US is in the process of approving its first offshore wind farm, located in Nantucket Sound. Geotechnical factors will play a large role in the development of offshore wind projects due to the …
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Computational modeling of wind turbine wake interactions
The rapid expansion of the wind energy market necessitates the need for advanced computational modeling and understanding of wind turbine aerodynamics and wake interactions. The following thesis work looks to study turbulence closure methods widely used in computational fluid dynamics (CFD) and …
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Unsteady separation control on wind turbine blades
… one of the primary causes of unsteady loads on wind turbine blades. The process can be instigated by a multitude of factors, common in wind turbine operating environments, such as inflow turbulence, wind gusts and sustained yaw misalignment. The unsteady separation due to dynamic stall can lead …
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Transient verification of generic wind turbine models
… comparison, of the four existing generic dynamic wind turbine models in three different commercial transient stability packages. It is known that transient stability results can, and do, differ across simulation platforms, and this work illustrates further this fact with special emphasis on …
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Aerodynamics of wind turbine with tower disturbances
Thesis: M.S., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 1978
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Structural design of waste-thermoplastic wind turbine blade
Wind turbine blades are unrecyclable at end of life, which has led to the testing of thermoplastics to replace thermosets in the composite; thus making recycling possible. Another challenge, waste plastics of which 55% of all plastics produced in 2015 were discarded into the environment. Utilising …
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Design and testing of a concentrator wind turbine
Wind energy, being an indirect form of solar energy would initially seem a very promising form of energy. Unfortunately, it suffers from the problem of dilution. Wind turbine designers naturally try to compensate for this by increasing the size of the rotor to capture more of the kinetic energy of …
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Structural health monitoring of onshore wind turbine foundations
… support of renewable power generation. Onshore wind is a major contributor to the world's renewable capacity. Ensuring or possibly extending the lifetime of current assets is key in gaining the most efficient power generation. Structural health monitoring (SHM) systems can be employed to …
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Wind turbine condition monitoring based on SCADA data
Wind energy has an increasingly essential role in meeting electrical power demand and achieving environmental sustainability. The excellent offshore wind resource and the need to reduce carbon emissions from electricity generation are driving policy to increase offshore wind generation capacity in …
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Effects of transient loading on wind turbine drivetrains
… issues with modelling the drivetrain of the wind turbine. Reliability data shows that gearboxes and generators have higher failure rates than expected, in particular the high speed bearings which are shown to be most problematic. Models of gearboxes are generally isolated from the rest of the …
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Monopile Foundation Offshore Wind Turbine Simulation and Retrofitting
<p>Offshore wind turbines (OWT) provide a renewable source of energy with great proximity to many large cities. This has caused a major increase in OWT development and implementation, primarily in Europe, but spreading throughout the world. There are a multitude of different foundation options, …
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An Experimental Investigation of Wind Turbine Aerodynamic Interaction
<p>Wind turbines have become a viable component in the overall energy makeup of the United States due to improved economics where energy prices have risen and production costs dropped. For a fixed cost, the effectiveness of a wind turbine financially is highly related to its performance. …
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Relating onshore wind turbine reliability to offshore application
With the award of the latest Round 3 offshore wind farm sites around the UK coast the wind industry is moving from the operation of near inshore to truly offshore wind farms. This has two major implications, the first being that wind turbines are now being specifically designed for offshore …
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Wind Turbine Parameter Calibration Using Deep Learning Approaches
… are critical to understanding the workings of a wind turbine, especially when it is in a transient state. However, many manufacturers do not provide this information about their turbines, requiring people to estimate these values themselves. This research seeks to design a multilayer perceptron …
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