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 15 of 15 for “"modern electric"”.
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Inference, estimation, and prediction for stable operation of modern electric power systems
… disruptions and technological progressions, electrical power systems must continually adapt. In order to address the stability-related challenges associated with these adaptations, this thesis develops a set of analytically rigorous yet practically oriented methods for ensuring the continued …
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Advanced Assessment of Inverter-based Resources-Storage Technologies on Modern Electric Grids in terms of Power Profiling, Ancillary Services, and Transient Stability
… storage presents significant challenges to modern power systems, including reduced dispatchability, limited reserve capacity, impaired ancillary service performance, and compromised transient stability. These complexities also hinder the applicability of conventional operational reliability …
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Modeling and Analysis of a Four-Switch Buck-Boost Dynamic Capacitor
<p>Modern electric power utilities are facing a variety of challenges introduced by the increasing complexity of their operation, structure, and consumer loads. One such challenge has been to supply the ever growing demand for reactive power which is essential for grid support. For this reason …
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Música Tejana and the Transition from Traditional to Modern: Manuel “Cowboy” Donley and the Austin Music Scene
… Contemporary Texas-Mexican artists rely on electric instruments. Previous to the integration of amplification, Música Tejana, or Texas-Mexican music rooted in la canción mexicana, used acoustic instruments. The first Música Tejana ensembles to “go electric” originated a new music scene and …
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Operation under Uncertainty in Electric Grid: A Multiparametric Programming Approach
… systems. Increasing uncertainty exposes the electric grid to potential safety issues and economic loss, thus posing significant challenges to the grid operations. Traditionally, power system operations use certainty equivalent approach to deal with uncertainty, i.e., replacing random …
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Incorporating station related maintenance and aging outages in composite system reliability evaluation
… The bulk of the existing infrastructure of most electric power systems has been installed over the last 30 to 50 years. Aging failures of system components are a growing issue in modern electric power systems. Station related preventive maintenance outages and aging failures are important factors …
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Small-Body and Heliophysics Missions using Hybrid Low-Thrust Propulsion
… systems, from the earliest chemical engines to modern electric thrusters, require propellant, thereby reducing the mass budget available for a payload. By harnessing the momentum of reflected photons of sunlight, solar sails offer a propellant-free alternative but are limited by attitude …
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Data-driven Protection of Transformers, Phase Angle Regulators, and Transmission Lines in Interconnected Power Systems
… learning approaches for fault detection in modern electric power grids. Once a fault has occurred, it must be identified quickly and a variety of preventative steps must be taken to remove or insulate it. As a result, detecting, locating, and classifying faults early and accurately can …
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Electricity distribution networks’ analysis with particular references to distributed generation and protection
Electric power systems have served well the consumers need for continuous, uninterrupted power supply of good quality and at the minimum possible cost. However, nowadays, the worldwide increasing demand on electric power, coupled with governmental policy changes towards “green” energy and emissions …
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Cascading Failures and Contingency Analysis for Smart Grid Security
<p>The modern electric power grid has become highly integrated in order to increase the reliability of power transmission from the generating units to end consumers. In addition, today’s power system are facing a rising appeal for the upgrade to a highly intelligent generation of electricity …
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Controlled Migration of Retinal Progenitor Cells Within Electro-Chemotactic Fields
… stromal derived factor (SDF-1). With the rise of modern electric field-based therapies in wound healing, studied in transcranial direct stimulation (TCDS), spinal cord repair and tumor treating fields (TTF), we built upon the uRetina and we developed the Gal-MμS device, a novel microfluidics …
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Development and performance of a velocity control system for modern combustion-powered scooters
… velocity-controlled Throttle-by-Wire-System for modern four-stroke 50 cc scooters (Euro 5). Further, the system performance, fuel-saving effect and exhaust optimization was investigated. The European Parliament has adopted major CO2 emission reductions by 2030. But modern combustion-powered …
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Cyber security threat modeling and experimental mitigation mechanisms in microgrids
… important strategy to advance the resiliency of modern electric power systems. However, the increasing connectivity of devices for monitoring and control of MGs serves to also increase the attack surface for a malicious cyber actor. This thesis presents two contributions to this problem. The …
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System Frequency Support of Permanent Magnet Synchronous Generator-Based Wind Power Plant
… ever-increasing penetration of wind power into modern electric grids all over the world, a trending replacement of conventional synchronous generators by large wind power plants will likely result in the poor overall frequency regulation performance. On the other hand, permanent magnet …
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Design of IPT Highways to Power Moving Electric Vehicles
Modern Electric Vehicles (EVs) are an attractive and sustainable transportation alter- native to help reduce global greenhouse gas emissions and our dependence on a rapidly diminishing petroleum reserve. However due to their limited battery capacity, most current EVs need to be manually plugged …