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Showing 1 to 20 of 21 for “"Wind energy conversion systems"”.
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DFIG-Based Split-Shaft Wind Energy Conversion Systems
In this research, a Split-Shaft Wind Energy Conversion System (SS-WECS) is investigated to improve the performance and cost of the system and reduce the wind power uncertainty influences on the power grid. This system utilizes a lightweight Hydraulic Transmission System (HTS) instead of the …
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Modeling of Small-Scale Wind Energy Conversion Systems
As wind turbines are increasingly being adopted for meeting growing energy needs, their implementation for personal home use in the near future is imminent. There are very few studies conducted on small-scale turbines in the one to two meter diameter range because the power generated at this scale …
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Grid current control methods for MV wind energy conversion systems
Wind energy has been one of the most important renewable energies as an alternative to fossil energy. The power rating of a single wind turbine has been increasing during the past forty years. A megawatt level wind turbine has been a tendency, especially for offshore wind energy application. The …
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Multiple Three-Phase Induction Generators for Wind Energy Conversion Systems
… largely driven by a need for the so-called green energy, i.e. energy generated from renewable sources such as wind, and also an increased emphasis on greener means for transportation. Some of the advantages multiphase machines offer over three-phase counterparts are better fault tolerance, smaller …
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An appraisal of wind energy conversion systems for agricultural enterprises.
A detailed wind prediction model is developed, which predicts wind regimes and energy outputs from wind turbine generators at locations that are remote from sites where long-term wind data is available. The model accounts for the local, directional influences on the wind flow of topography and …
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A Framework for Assessing the Reliability of Wind Energy Conversion Systems
During the last decade, wind power generation has seen rapid development. According to the U.S. Department of Energy, achieving 20\% wind power penetration in the U.S. by 2030 will require: (i) enhancement of the transmission infrastructure, (ii) improvement of reliability and operability of wind …
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Reliability analysis of a power electronic integrated generator for wind energy conversion systems
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 of Modular Multilevel Converters for Grid Integration of Full-Scale Wind Energy Conversion Systems
<p>The growing demand for wind power generation has pushed the capacity of wind turbines towards MW power levels. Higher capacity of the wind turbines necessitates operation of the generators and power electronic conversion systems at higher voltage/power levels. The power electronic conversion …
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Modeling Considerations for the Long-Term Generation and Transmission Expansion Power System Planning Problem
… nondispatchable generation such as Wind Energy Conversion Systems (WECS) necessitates the re-evaluation of the merit of planning methodologies in the changing power system context. Traditionally, planning has followed a logical progression through generation, transmission, reactive …
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Renewable electric power systems energy yield and performance estimation
… presents models for reliability assessment, energy yield estimation, and uncertainty analysis of renewable electric power systems. We propose system performability models that describe system attributes while acknowledging failures and repairs in constituent elements. Two broad classes of …
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Reliability and cost/worth evaluation of generating systems utilizing wind and solar energy
The utilization of renewable energy resources such as wind and solar energy for electric power supply has received considerable attention in recent years due to adverse environmental impacts and fuel cost escalation associated with conventional generation. At the present time, wind and/or solar …
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Design and implementation of variable speed wind energy induction generator systems for fault studies
Due to the economical and environmental benefits, Wind Energy Conversion Systems (WECS) have received tremendous growth in the past decade. The increased interest in wind energy has made it necessary to model and experimentally evaluate entire WECS, so as to attain a better understanding and to …
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Development of a System for Testing Grid-connected Doubly Fed Induction Generators with Implementation of a Three-level Neutral-Point-clamped Converter
… towards an environmentally sustainable society. Wind energy conversion systems (WECSs) are one of the largest contributors within this movement. Furthermore amongst existing wind turbine power generation technologies, the doubly fed induction generator (DFIG) has been distinctively popular for …
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Improved Dynamical Analysis Tools for DFIG Wind Farms via Traditional and Koopman Linearizations
… also come with their own challenges. These systems as currently employed tend to have a different impact on the reliability of operation than traditional fossil fuel based generators. As the system changes, so do the engineering analyses required to ensure reliable operation. In particular, …
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Development of a multilevel converter topology for transformer-less connection of renewable energy systems
… ongoing research theme in the last decade. Clean energy sources (such as wind energy and solar energy) have considerable potential to reduce reliance on fossil fuels and mitigate climate change. However, wind energy is going to become more mainstream due to technological advancement and …
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Design and Analysis of a Small-Scale Wind Energy Conversion System
… to present detailed analysis of the small scale wind energy conversion system (WECS) design and implementation. The dissertation will focus on implementing a hardware prototype to be used for testing different control strategies applied to small scale WECSs. Novel control algorithms will be …
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Modelling and performance analysis of doubly fed induction generator wind farm
Submitted in fulfillment of the requirements for the degree of Master of Engineering in Electrical Power Engineering, Durban University of Technology, Durban, South Africa, 2018.
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