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 20 for “"Electricity grids"”.
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Valuing energy storage in electricity grids : a machine learning approach
… policy or decision rules, ideally charging when electricity prices are low and discharging when prices are high. In this thesis, state-of-the-art Machine Learning methods in the field of electricity price forecasting were used to accurately predict electricity prices. An improvement on existing …
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Wind power statistics in Britain, and their consequences for the integration of wind generation into electricity grids
… variations for the use of wind generation of electricity both by the Central Electricity Generating Board (CEGB) and more generally. The statistical work is based on the use of spectral analysis, and cross correlation analysis of wind power time series estimated from Meteorological Office …
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Perceptions of risk in increasingly capital-intensive electricity grids : measuring the impacts of accurate cost of capital representation on investment planning for future energy systems
The U.S. electric grid is experiencing unprecedented change as the system continues a path toward a more diversified and decarbonized generation mix, with increased investment in wind, solar, storage and other energy transition technologies. Concurrently, market structures continue their evolution …
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Analysis of energy delivery sector malware attack response mechanisms
Recent cyberattacks on the electricity grids in the U.S. and Ukraine, the rise of malware tailored to industrial control systems, failure of basic sanitary and life-saving systems after prolonged power outages, economic losses numbering in the billions: these are the consequences of malware attacks …
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Managing impacts of hydrological droughts and heat waves on thermal power plants
… a vulnerability for individual power plants and electricity grids. Recent droughts and heat waves have highlighted the tension between thermal power plants and water resources, stimulating various research efforts. Prior research work has largely focused on long term energy infrastructure choices …
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Solar energy in the minerals processing industry: identifying the first opportunities
Solar energy, particularly electricity generated from the solar resource, has long been thought to be amongst the most expensive energy products. However, in a climate of electricity shortages and pressures on industries to reduce energy-related greenhouse gas emissions, many previous truths are …
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Surge-energy and Overvoltage Robustness of Cascode GaN Power Transistors
… applications such as automotive powertrains and electricity grids. While Si and SiC MOSFETs can dissipate surge energy via avalanche, the GaN high-electron-mobility transistor (HEMT) has no avalanche capability and withstands surge energy by its overvoltage capability. However, a comprehensive …
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An Approach to Mitigate Electric Vehicle Penetration Challenges through Demand Response, Solar Photovoltaics and Energy Storage Applications in Commercial Buildings
… are active loads as they increase the demand for electricity and introduce several challenges to electrical distribution feeders during charging. Demand Response (DR) or performing load control in commercial buildings along with the deployment of solar photovoltaic (PV) and ice storage systems at …
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Power shifts : a techno-economic analysis of multinational electricity market development in the Middle East
Electricity demand has been rising rapidly in the six Gulf Cooperation Council (GCC) countries (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates). As a result, the diversification and sustainable transition of their electricity sectors has been a priority. As part of these …
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Energy Management System in DC Future Home
Making electricity grids smarter and facilitating them with integration of renewable energy sources (RES) and energy storage are fairly accepted as the necessary steps to achieve a sustainable and secure power industry. To enable Net-zero energy and optimize power management for future homes or …
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Dispatchable Operation of Multiple Electrolysers for Demand Side Response and the Production of Hydrogen Fuel-Libyan Case Study
… energy and its integration into existing electricity grids. The variable nature of RE generators assessment affects the ability to balance supply and demand across electricity networks; however, the use of energy storage and demand-side response techniques is expected to help relieve this …
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Smart charging strategies for Electric Vehicles utilising non-dispatchable renewable electricity generation
… utilisation of these fuels - particularly for electricity generation and transportation - is simply not sustainable. Present-day electricity systems are built around the premise that generation is flexible and controllable, while load - generally speaking - is not. This leads to dispatch models …
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Design, modelling and valuation of innovative dispatch strategies for energy storage systems
… to take over multiple roles across the entire electricity sector, introducing modern applications for both private actors and system operators. In this context, the current thesis focuses on the valuation of emerging energy storage applications, while also proceeding to the design and modelling …
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Power electronics implementation of dynamic thermal storage as effective inertia in large energy systems
Modern large energy systems such as electricity grids and electrified transportation encounter increasing processed power in multi-physics domains, such as electrical, mechanical, thermal, and chemical. Although many systems are becoming predominantly electrical dependent, an integrated …
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Forecasting and trading optimisation in the day-ahead and balancing market
… posing significant reliability concerns for electricity grids. Addressing these challenges requires advanced tools to predict market dynamics and manage the resulting imbalances effectively. This dissertation responds to these needs by focusing on predicting electricity prices and modelling …
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Resistive-type Superconducting Fault Current Limiter (RSFCL) and Its Application in Power Systems
… to the performance, stability and efficiency of electricity grids. In order to promote the RSFCL more effectively, it is essential to study the device itself and conduct simulations regarding the performance and applicability from the system point of view. Chapter 1 and Chapter 2 of this thesis …
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A roadmap for energy transition strategic planning and governance: a case study of Nigeria's grid-based renewable electricity sector.
… energy sources into the planned 30GW of electricity generation by 2030. This is principally because deploying renewable energy on the national grid provides succour to the complex dual energy issues of access and poverty currently experienced in Nigeria, promoting the reduction of …
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A fast state-estimation-based data integrity threat detection approach for combined AC-DC bulk power systems
… modern power system operations have increased as electricity grids have become more geographically widespread and complex. Some modern bulk grids now combine AC and DC subsystems to effectively serve their loads. Communications and controls for such combined grids, in particular, have increasingly …
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The Role of Hydrogen Fuel in Hard-to-Decarbonise Modes of Transport: An Energy Systems Perspective
… they are scarce. In this thesis, utilisation of electricity grid derived liquid hydrogen (LH2) fuel for these purposes is investigated. Particular focus is dedicated to: (1) the geographical, situational and design niches for which the use of LH2 is favourable within aviation and shipping; (2) …
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Cost-Risk Analysis of the ERCOT Region Using Modern Portfolio Theory
… of portfolios of technologies within the ERCOT electricity region. The levelized cost of electricity for each technology in the region is a step in evaluating the expected cost of the portfolio, and the historical data of cost factors estimate the variance of cost for each technology. In …