Coke Oven Emissions: A Case Study Of Technology-Based Regulation, 2016 University of New Hampshire
Coke Oven Emissions: A Case Study Of Technology-Based Regulation, John D. Graham, David R. Holtgrave
RISK: Health, Safety & Environment
After examining and analyzing the experience with coke ovens, the authors conclude that attempts to force technology beyond its demonstrated competence can be both expensive and ineffective in controlling hazards. They also suggest implications for pending proposals to further control air pollution.
Technological Assessment Of Different Solar-Biomass Systems For Hybrid Power Generation In Europe, 2016 Dublin Institute of Technology
Technological Assessment Of Different Solar-Biomass Systems For Hybrid Power Generation In Europe, C. M. Iftekhar Hussain, Brian Norton, Aidan Duffy
Solar Tower thermal (ST), Parabolic Trough thermal (PT), Linear Fresnel thermal (LF) and Solar PV are discussed in the context of suitability for hybridization with biomass in Europe. Technical, economical and climate data have been compared to identify the key drivers of technology selection in setting up large scale solar-biomass hybrid power plants. The sole solar-biomass hybrid power plant is currently in operation in Spain uses PT technology due to its performance characteristics, comparatively easy installation process compared to ST and relatively higher heat and optical gain than LF. The climate condition in the EU shows that the region within ...
Prospective Doctoral Statement For The University Of Southern California's School Of Cinematic Arts Media Arts + Practice Program, 2016 University of Southern California
Prospective Doctoral Statement For The University Of Southern California's School Of Cinematic Arts Media Arts + Practice Program, Gabriel Leiner
After visiting L.A. again and seeing the beautiful fountains on the University of Southern California's campus I am filled with all kinds of ideas about the future and brimming with energy. To all those at the University of Southern California's Cinematic Arts Department, thanks for reading my ideas over the past couple years and helping me to evolve and become a better person and a better writer. Starting a position as a doctoral student in the Media Arts + Practice Program in 2016 is an exciting opportunity. I've got a really positive outlook about Kiss The Water.
Large Scale Monolithic Solar Panel Simulation - A Study On Partial Shading Degradation, 2016 Purdue University
Large Scale Monolithic Solar Panel Simulation - A Study On Partial Shading Degradation, Suhas V. Baddela, Xingshu Sun, Muhammad A. Alam
The Summer Undergraduate Research Fellowship (SURF) Symposium
Shadow-induced degradation is a major concern for both power output and long-term reliability in solar cells. Apart from the obvious fact that shading reduces the amount of solar irradiance available to solar panels, it may lead to formation of hot spots, where solar cells are forced to reverse breakdown with localized heating, and potentially, permanent damage. To get a better understanding of shadow-induced degradation, we develop an electro-thermal coupled simulator that can self-consistently solve the electrical and thermal distributions of solar panel under arbitrary shading conditions. The simulation framework consists of two part: a) compact models that can describe the ...
Optimal Scheduling Of Energy Storage For Energy Shifting And Ancillary Services To The Grid, 2016 The University of Western Ontario
Optimal Scheduling Of Energy Storage For Energy Shifting And Ancillary Services To The Grid, Hadi Khani
Electronic Thesis and Dissertation Repository
This thesis is mainly focused on developing optimization-based models for scheduling of energy storage units. At first, a real-time optimal scheduling algorithm is developed seeking to maximize the storage revenue by exploiting arbitrage opportunities available due to the inter-temporal variation of electricity prices. The electricity price modulation is proposed as an approach to competitively offer incentive by the utility regulator to storage to fill the gap between current and a stable rate of return. Subsequently, the application of large-scale storage for congestion relief in transmission systems as an ancillary service to the grid is investigated. An algorithm is proposed for ...
Bi-Level Optimization Considering Uncertainties Of Wind Power And Demand Response, 2016 University of Tennessee, Knoxville
Bi-Level Optimization Considering Uncertainties Of Wind Power And Demand Response, Xin Fang
Recently, world-wide power systems have been undergone a paradigm change with increasing penetration of renewable energy. The renewable energy is clean with low operation cost while subject to significant variability and uncertainty. Therefore, integration of renewables presents various challenges in power systems. Meanwhile, to offset the uncertainty from renewables, demand response (DR) has gained considerable research interests because of DR’s flexibility to mitigate the uncertainty from renewables. In this dissertation, various power system problems using bi-level optimization are investigated considering the uncertainties from wind power and demand response.
In power system planning, reactive power planning (RPP) under high-penetration wind ...
Wide-Area Measurement-Based Applications For Power System Monitoring And Dynamic Modeling, 2016 University of Tennessee, Knoxville
Wide-Area Measurement-Based Applications For Power System Monitoring And Dynamic Modeling, Jidong Chai
Due to the increasingly complex behavior exhibited by large-scale power systems with more uncertain renewables introduced to the grid, wide-area measurement system (WAMS) has been utilized to complement the traditional supervisory control and data acquisition (SCADA) system to improve operators’ situational awareness. By providing wide-area GPS-time-synchronized measurements of grid status at high time-resolution, it is able to reveal power system dynamics which cannot be captured before and has become an essential tool to deal with current and future power grid challenges. According to the time requirements of different power system applications, the applications can be roughly divided into online applications ...
Data Analytics And Application Developments Based On Synchrophasor Measurements, 2016 University of Tennessee, Knoxville
Data Analytics And Application Developments Based On Synchrophasor Measurements, Jiahui Guo
Frequency Monitoring Network (FNET) is an Internet‐based, wide‐area phasor measurement system that collects power system data using Frequency Disturbance Recorders (FDRs) that are installed at the distribution level. These synchrophasor measurements enable the monitoring of bulk power systems, and provides wide‐area situational awareness and disturbance analysis for understanding power system disturbances and system operations. Various data analytics and applications are built based on these valuable measurements.
Real-time situational awareness tools are of critical importance to power system operators. Knowledge of the scope and extent of facilities impacted, as well as the duration of their dependence on backup ...
Real-Time Voltage Stability Monitoring And Control For Load Areas: A Hybrid Approach, 2016 University of Tennessee, Knoxville
Real-Time Voltage Stability Monitoring And Control For Load Areas: A Hybrid Approach, Fengkai Hu
This dissertation proposes a hybrid approach for real-time monitoring and controlling voltage stability of a load area fed by N tie lines. This hybrid approach integrates both simulation-based and measurement-based approaches for voltage stability assessment (VSA).
First, for measurement-based VSA (MBVSA), a new method is proposed for monitoring and control of load areas, which adopts an N+1 buses equivalent system so as to model and monitor individual tie lines of a load area compared to a traditional MBVSA method adopting a Thevenin equivalent. For each tie line, the new method solves the power transfer limit against voltage instability analytically ...
The Influence Of The Electric Supply Industry On Economic Growth In Less Developed Countries, 2016 University of Southern Mississippi
The Influence Of The Electric Supply Industry On Economic Growth In Less Developed Countries, Edward Richard Bee
This study measures the impact that electrical outages have on manufacturing production in 135 less developed countries using stochastic frontier analysis and data from World Bank’s Investment Climate surveys. Outages of electricity, for firms with and without backup power sources, are the most frequently cited constraint on manufacturing growth in these surveys.
Outages are shown to reduce output below the production frontier by almost five percent in Africa and by a lower percentage in South Asia, Southeast Asia and the Middle East and North Africa. Production response to outages is quadratic in form. Outages also increase labor cost, reduce ...
Review And Characterization Of Gallium Nitride Power Devices, 2016 University of Tennessee, Knoxville
Review And Characterization Of Gallium Nitride Power Devices, Edward Andrew Jones
Gallium Nitride (GaN) power devices are an emerging technology that have only recently become available commercially. This new technology enables the design of converters at higher frequencies and efficiencies than those achievable with conventional Si devices. This thesis reviews the characteristics and commercial status of both vertical and lateral GaN power devices from the user perspective, providing the background necessary to understand the significance of these recent developments. Additionally, the challenges encountered in GaN-based converter design are considered, such as the consequences of faster switching on gate driver design and board layout. Other issues include the unique reverse conduction behavior ...
Class D Power Amplifier For Medical Application, 2016 University of California, Irvine
Class D Power Amplifier For Medical Application, Wei Cai
Configuration And Optimization Of A Novel Compressed-Air-Assisted Wind Energy Conversion System, 2016 University of Nebraska-Lincoln
Configuration And Optimization Of A Novel Compressed-Air-Assisted Wind Energy Conversion System, Jie Cheng
Theses and Dissertations from Electrical & Computer Engineering
The increasing concerns over the environmental impact of carbon emissions and the unsustainability of conventional fossil fuel power plants are stimulating interest in the implementation of renewable energy in current power systems. Among all of the renewable energies, wind energy holds a prominent place because of its high output and the maturity of the technology. However, like all of the other renewable energies, integration of wind energy into the power grid causes some quality and control issues, such as overvoltage or undervoltage and frequency excursion.
To mitigate these issues and build a robust wind power system, a novel structure referred ...
Simulation, Measurement, And Emulation Of Photovoltaic Modules Using High Frequency And High Power Density Power Electronic Circuits, Yunas Erkaya
Electrical & Computer Engineering Theses & Disssertations
The number of solar photovoltaic (PV) installations is growing exponentially, and to improve the energy yield and the efficiency of PV systems, it is necessary to have correct methods for simulation, measurement, and emulation. PV systems can be simulated using PV models for different configurations and technologies of PV modules. Additionally, different environmental conditions of solar irradiance, temperature, and partial shading can be incorporated in the model to accurately simulate PV systems for any given condition.
The electrical measurement of PV systems both prior to and after making electrical connections is important for attaining high efficiency and reliability. Measuring PV ...
Energy Consumption Prediction With Big Data: Balancing Prediction Accuracy And Computational Resources, Katarina Grolinger, Miriam Am Capretz, Luke Seewald
Electrical and Computer Engineering Publications
In recent years, advances in sensor technologies and expansion of smart meters have resulted in massive growth of energy data sets. These Big Data have created new opportunities for energy prediction, but at the same time, they impose new challenges for traditional technologies. On the other hand, new approaches for handling and processing these Big Data have emerged, such as MapReduce, Spark, Storm, and Oxdata H2O. This paper explores how findings from machine learning with Big Data can benefit energy consumption prediction. An approach based on local learning with support vector regression (SVR) is presented. Although local learning itself is ...
A Utility-Scale Deployment Project Of Behind-The-Meter Energy Storage For Use In Ancillary Services, Energy Resiliency, Grid Infrastructure Investment Deferment, And Demand-Response Integration, 2016 Portland State University
A Utility-Scale Deployment Project Of Behind-The-Meter Energy Storage For Use In Ancillary Services, Energy Resiliency, Grid Infrastructure Investment Deferment, And Demand-Response Integration, Joseph Nathanael Wilson
Dissertations and Theses
Electric utilities are increasingly incentivized to integrate new renewable energy generation resources to their systems; however, operations-related issues arise due to the non-dispatchable and stochastic nature of these renewable energy sources. These characteristics lead to a variety of issues for utilities, among which are voltage fluctuations, balancing dispatch against ramping events, short-duration power fluctuations, and the need to invest in peaking generation facilities just to accommodate the renewable energy. A traditional solution to these issues is to employ renewable generation-following techniques using either newly constructed gas peaking plants, or by shifting existing generation resources to this following responsibility. Unfortunately, use ...
Bringing Electricity To Alafiarou: The Solar Microgrid Project, 2016 Santa Clara University
Bringing Electricity To Alafiarou: The Solar Microgrid Project, Nicolas Metais, Jacob Leatherberry
Electrical Engineering Senior Theses
Despite the great technological advancements and discoveries that have been made throughout the last century, 1.2 billion people still live without access to electricity, 95% of which live in Sub-Saharan Africa and developing Asia.1 In this paper, we discuss how we designed and implemented a self-sustaining, affordable and highly replicable solar microgrid in order to accelerate the electrification of rural communities in the most environmentally conscious way possible. Our project focused on developing a microgrid for a small community of 10 households in rural Benin that previously had no access to electricity. We travelled to this village in ...
Energy Harvesting From Exercise Machines Buck-Boost Dc Dc Converter With The Lt8705 Controller, 2016 California Polytechnic State University, San Luis Obispo
Energy Harvesting From Exercise Machines Buck-Boost Dc Dc Converter With The Lt8705 Controller, Ryan Matteo
In order to increase sustainability and save money, the Energy Harvesting from Exercise Machines (EHFEM) system uses human supplied energy to self-power exercise equipment such as spin bikes, elliptical trainers, ergometers, etc. This document covers the design and implementation of a Buck-Boost DC-DC converter using the LT8705 controller into the EHFEM system. This project improves upon the overall efficiency of the Buck-Boost Converter designed by past groups working on the EHFEM system.
Integration Of Sel Relays To Provide Motor, Transmission Line, And Transformer Protection, 2016 California Polytechnic State University, San Luis Obispo
Integration Of Sel Relays To Provide Motor, Transmission Line, And Transformer Protection, Christopher Ewing, Bryce Keefer
The objective of this project is to familiarize the performers with the principles of operation of the Schweitzer Engineering Laboratories (SEL) protective relays in both normal and fault conditions. The SEL-587, SEL-311L and SEL-710 microprocessor-based relays are used to provide protection for a system composed of transformers, simulated transmission lines and a 3-phase induction motor. Each of these relays provides protection by sending a trip signal to local breakers upon sensing a fault condition. The SEL-587 provides overcurrent and differential protection for a 3-phase transformer, while the SEL-311L provides differential and distance protection for a transmission line, and negative sequence ...
Solar Generation's Impact On Fault Current, 2016 California Polytechnic State University, San Luis Obispo
Solar Generation's Impact On Fault Current, Kody Heppner
California is paving the road for other states with the capacity of solar installations for residential and commercial entities. The added capacity of solar generation to the state's electric grid has an impact on power flow and fault currents. This project looks at the impact of solar installations on fault currents. Feeders with added residential rooftop solar and larger commercial solar installations may impact the system differently than a large, utility-sized solar installation. This project looks at the impact of both cases on the magnitude of fault current during many different fault types and locations that can occur within ...