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 34 for “"offshore wind farms"”.
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Predicting Interference Patterns Between Offshore Wind Farms through Wake Analysis
… the wake effect from a cluster of large-scale offshore wind turbines with the purpose of optimizing spacing between separate farms to avoid wake interference. Placing wind turbines within a field of disturbed flow decreases power output, and in some cases, threatens structural integrity. …
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Human Factors in the Operation and Maintenance of Offshore Wind Farms
… tools used in the operations and maintenance of offshore wind farms rarely account for the welfare of technicians and their ability to do work upon arrival. This creates uncertainties especially since current operational limits might make a wind farm accessible but vibrations from transits might …
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Techno-economic analysis of green ammonia production using offshore wind farms
… for the conversion facilities: i) utterly offshore ammonia production, ii) utterly onshore ammonia production, and iii) offshore hydrogen production, followed by onshore conversion into ammonia. Four different interconnecting infrastructures are considered for the energy distribution: i) …
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Floating offshore wind farms : demand planning & logistical challenges of electricity generation
Floating offshore wind farms are likely to become the next paradigm in electricity generation from wind energy mainly because of the near constant high wind speeds in an offshore environment as opposed to the erratic wind speeds in their onshore counterparts. By using floaters adapted from oilrigs, …
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Economic analysis of an integrated generator-rectifier system for offshore wind farms
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Control and operation of offshore wind farms connected with diode rectifier HVDC systems
… advantage of abundant space and more consistent wind speed, interest in offshore wind energy has significantly increased. To reduce the cost related to offshore wind power integration, this thesis investigates the control, modelling and operation of offshore wind farms connected with diode …
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Design and operation of Low Frequency AC (LFAC) transmission system for connecting offshore wind farms
The offshore power transmission market continuously grows as government incentives for Renewable Energy, and technological advancements lead to the exploitation of offshore wind for electricity generation due to its high capacity factors and the abundant offshore space. Currently, the High Voltage …
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Stability analysis of the Namibian power grid with integration of large offshore wind farms using a VSC-HVDC scheme
A thesis submitted in fulfillment of the requirements of the Degree of Master of Engineering in Electrical Power, Durban University of Technology, Durban, South Africa, 2021.
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Development of offshore wind operational expenditure model and investigation of optimum operation and maintenance fleet
Offshore wind turbine technology is moving forward as an alternative to the fossil fuelled power production. However, there are a number of challenges in further offshore areas; wind turbines are subject to loads that are not often experienced onshore and more importantly challenging wind and wave …
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Modelling the marine boundary layer for offshore wind power utilisation
For planning and operation of offshore wind farms a profound knowledge of the meteorological conditions is indispensable. This thesis is concerned with modelling the structure of the marine atmospheric boundary layer, with focus on effects, which are important for wind resource assessment. Data …
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Opportunity Between the Turbines: A Willingness-to-Pay Experiment Regarding Co-Location Activities with the Coastal Virginia Offshore Wind Farm
… act of coupling other maritime activities with offshore wind farms is often referred to as co-location. As Virginia constructs the first offshore wind farm in United States Federal waters, there are new opportunities for co-location that could benefit the Virginia economy. Using data from a …
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A geospatial economic analysis of hydrogen production from offshore wind using electrolysers
… energy sources. Combined with the advantages of offshore wind, green hydrogen production from offshore wind energy has emerged as a potential versatile zero-carbon energy vector. Exploiting offshore wind energy to produce hydrogen not only opens up a new direction in the use of renewable energy …
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Characterizing the Influence of Turbulence Intensity on Energy Production at the Vineyard Wind 1 Farm
… turbines and is critical to power generation by wind farms. As offshore wind energy development increases in the United States, it is necessary to understand the impact turbulence intensity uncertainty has on predicting the annual energy production (AEP) of a wind farm. In numerical models used …
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Quantifying the relationship between wind turbine component failure rates and wind speed
Onshore wind turbine technology has matured to the point when assets are now expected to produce availabilities greater than 97%. The wind speed a wind turbine operates in has an impact on its reliability. Hitherto this relationship has not been defined, quantified or used to undertake analysis to …
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Wind farm control and modelling to provide grid primary response and meet O&M requirements
In the past years, investing in wind industry has been of a great interest. In all future energy scenarios regarding GB power generation, a substantial penetration of wind energy is envisaged. However, at present, except for occasional curtailment of generation, wind farms simply output all the …
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Wind tunnel study of wind farms with alternating 2- and 3-bladed wind turbines
With offshore wind farms gaining substantial momentum in recent years, 2-bladed turbines (2BT) are increasingly becoming a viable alternative to 3-bladed counterparts (3BT). In this wind tunnel study, model wind farms with alternating rows of 3BT and 2BT were explored for potential benefits …
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Automating Video Analysis for Marine and Behavioural Research: Deep Learning Solutions to Analytical Bottlenecks
… Baited Remote Underwater Video (BRUV) data from offshore wind farms in the northern North Sea. BRUV surveys are widely used for marine biodiversity assessment but remain constrained by labour-intensive manual analysis. The YOLO-based detection model developed here automatically enumerates two …
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Vėjo energetikos projektų finansavimo šaltinių analizė Europos Sąjungoje /
… of scientific papers describes the evolution of wind turbines, when they became relevant as a source of energy, the problems they encountered in the twentieth century and the impact they are having today. The importance of wind power is illustrated by various figures on how this clean energy can …
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Harmonic propagation studies in offshore wind power clusters
… that suggests a set of configurations in large offshore wind power clusters to maintain harmonics at levels that let the clusters operate without operational problems caused by harmonics. The major case studies of harmonics in offshore wind farms are focused on the importance of harmonic …
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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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