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 53 for “"Distributed Generation (DG)"”.
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Transmission system overvoltage mitigation through the use of distributed generation (DG) smart inverters
… transmission system overvoltage violations using distributed generation (DG) smart inverters connected to the electric distribution system. Overvoltage violations are situations when the system exhibits voltage levels outside of the acceptable range set by the American National Standards Institute …
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A load shedding scheme for inverter based microgrids
… decade, penetration of microgrids containing distributed generation (DG) sources has increased in grid distribution systems. This requires the stable operation of microgrids when connected to the distribution system as well as during islanding. Islanding that is fault provoked is more likely …
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Análise do problema de máxima geração distribuída observando o critério estático da estabilidade de tensão
The Distributed Generation (DG) growth in Brazil and worldwide is followed by many advantages, disadvantages and uncertainties about the system behavior regarding some criteria such as reliability, availability and voltage stability. As new DG players request their connection in the distribution …
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Modeling a distributed energy system for California electricity production through 2050
<p>Recent research shows that combining distributed generation (DG) with renewable resources will reduce fossil fuel dependency and carbon dioxide (C02) emissions. This thesis presents a framework to evaluate the benefits of DG in terms of C02 emission and transmission line losses with respect to …
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Voltage and Reactive Power Control in Islanded Microgrids
… addressed yet, such as: 1) The ability of the distributed generation (DG) units to maintain equal reactive power sharing in a distribution system; 2) The ability of the DG units to maintain acceptable voltage boundary in the entire IMG; 3) The functionality of the existing voltage and reactive …
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Increasing Distribution Grid Hosting Capacity Through Wire And Non-Wire Solutions
<p>Increased deployment of distributed generation (DG) can adversely impact the operational performance of distribution networks. This increment can potentially change network power flow and result in several operational issues such as reduced power quality, overvoltage, and ineffective protection. …
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Impacts of Distributed Generation on the Residential Distribution Network Operation
In this research, the impacts of installing DG on a residential distribution circuit are explored. The work is focused on analyzing the impact of DG installation on distribution network operation including voltage analysis, electric losses and reliability of the system. First, various DG …
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Aplicação de sincrofasores na proteção de redes de distribuição com geração distribuída
The penetration of Distributed Generation (DG) is a reality in distribution networks, adding capacity to attend to the growing demand. However, this DG penetration can not be done in an uncontrolled way. It requires a comprehensive analysis to adapt the present systems to this new scenario. In the …
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Toward zero net energy buildings : optimized for energy use and cost
… a tool has been developed to help compare distributed generation (DG) alternatives with energy efficiency measures early in the design process. It was designed to be accessible to non-technical users and to allow them to set up and run simulations in just a few minutes. The tool was built …
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A planning scheme for penetrating embedded generation in power distribution grids
Penetrating Embedded Generation, or Distributed Generation (DG), in power distribution grids presents great benefits and substantial positive social impacts to utilities, system operators and electricity consumers. Existing research and practices on DG penetration planning have a few deficiencies: …
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The Power Production Paradox: Revealing the Socio-Technical Impediments to Distributed Generation Technologies
… improvements in renewable energy and small-scale distributed generation (DG) technologies have been made in the last twenty years. Nevertheless, they remain underutilized in the American electric utility system. Despite the immense environmental, technical, and financial promise of renewable …
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Numerical Investigations of the Thermal State of Overhead Lines and Underground Cables in Distribution Networks
… of CO2 emissions, a rapid expansion of power generation using new more fuel efficient technologies (large, medium and embedded scale with combined heat and power (CHP) projects) and renewable energy (wind, biomass, solar PV) is currently taking place in numerous European countries, including …
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The road still not taken : how combined heat and power can contribute to a sustainable energy future in Massachusetts
… efforts, however, the rate of development of distributed generation (DG) in the state pales in comparison to that of traditional centralized generation facilitates. DG is the production of electricity at or near the location where it will be used. Instead of relying on power generated at …
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Feasibility of fuel cell systems for building applications
… most of the power demand will be produced by Distributed Generation (DG) systems. DG refers to power generating technologies independent from the electrical grid, located at or near the location where electricity is consumed. Fuel Cells have become very attractive DG systems in recent years, …
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Design, development and demonstration of an active network management testbed
The push to accommodate Distributed Generation (DG) has led to the requirement of better investing in the planning and operation of power networks. Geographically, in the UK, the most suitable areas of Distributed Generation typically exist in locations not previously designed for larger or reverse …
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Dynamic modelling and emulation of a high temperature proton exchange membrane fuel cell (HT PEMFC)
… presents a good alternative energy source for distributed generation (DG) systems. FCs however, have had limited commercial success despite their performance, durability and low environmental impact in comparison to other energy conversion and power generation devices. This lack of success has …
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The application and assessment of active network management techniques for distribution network power flows
… are influencing a significant increase of distributed generation (DG) planning applications. With an abundance of the UK's indigenous energy resources being either rural or coastal large volumes of DG are seeking connection at the lower voltage distribution networks. Connecting large …
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The analysis and application of resistive superconducting fault current limiters in present and fututre power systems
… growth in demand, the increasing presence of distributed generation (DG), and increased network interconnection. This rising trend is expected to continue in the future. Marine vessel power systems are highly power-dense and are often safety-critical. Power system protection is increasingly …
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Breaking barriers : an examination and recommendations regarding the role of clean distributed electricity generation in Mexico
… tried to diversify the country's electricity generation profile, including the promotion of clean distributed generation (DG) technologies. A broad cross section of governmental and non-governmental stakeholders has publicly supported these objectives; however, low domestic electricity prices, …
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Control of Power Conversion Systems for the Intentional Islanding of Distributed Generation Units
… grid from centralized, radial sources to a distributed network of sources, also known as distributed generation (DG); in the wake of deregulation, the California energy crisis, and northeastern blackouts. Existing control techniques for DG systems are designed to operate a system either in …
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