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.
Results
Showing 1 to 20 of 631 for “"Electrical and Electronics"”.
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Development and implementation of an open-box distribution-level phasor measurement unit
… Global Positioning System (GPS) time accuracy and is necessary for data to have meaning when compared across different locations. Among other purposes, data is used for post-mortem event analysis and system model validation. This thesis aims to provide a deep understanding of the PMU’s inner …
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Bit error rate estimation in WiMAX communications at vehicular speeds using Nakagami-m fading model
… the latest fourth generation (4G) wireless broadband systems. Wireless broadband systems are becoming increasingly popular with consumers and the technological strength of 4G has played a major role behind the success of wireless broadband systems. The IEEE 802.16m standard of the Worldwide …
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Stability impact of increased DER penetration in regard to the IEEE 1547 standard in the presence of cyberadversaries
The Institute of Electrical and Electronics Engineers (IEEE) 1547 standard addresses the integration of distributed energy resources (DER) into area electric power system (AEPS). First released in 2003, with multiple revisions ongoing, the most recent version from 2018 is used in this thesis to …
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The Impact of Electrical Standards on MVDC Shipboard Power Cable Size
… with DC loads, reduction of induced currents and magnetic signatures, and avoidance of alternating current (AC) frequency synchronization issues when combining outputs from multiple sources [1]. However, few MVDC systems are currently in operation, and little is known in terms of design and …
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Design and Validation of A High-Power, High Density All Silicon Carbide Three-Level Inverter
… carbon-dioxide emission, less maintenance costs and less operation costs. It also offers higher efficiency and safety margin. More importantly, it relieves human’s dependence on conventional fossil energy. In the electrification progress, the revolution of electric traction drive systems is one …
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Link Adaptation Algorithm and Metric for IEEE Standard 802.16
Broadband wireless access (BWA) is a promising emerging technology. In the past, most BWA systems were based on proprietary implementations. The Institute of Electrical and Electronics Engineers (IEEE) 802.16 task group recently standardized the physical (PHY) and medium-access control (MAC) layers …
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Knowledge Creation Analytics for Online Engineering Learning
The ubiquitous use of computers and greater accessibility of the Internet have triggered widespread use of educational innovations such as online discussion forums, Wikis, Open Educational Resources, MOOCs, to name a few. These advances have led to the creation of a wide range of instructional …
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Cognitive Radar Detection in Nonstationary Environments and Target Tracking
Target detection and tracking are the most fundamental and important problems in a wide variety of defense and civilian radar systems. In recent years, to cope with complex environments and stealthy targets, the concept of cognitive radars has been proposed to integrate intelligent modules into …
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Self Capacitance based Wireless Power Transfer for Wearable Electronics: Theory and Implementation
Wireless power transfer (WPT)
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Overvoltage Prevention in Low Voltage Rural Distribution Network with High Penetration of Wind Energy
… are necessary for implementing this technique and is activated only when needed. In wind energy systems, this can be achieved by adjusting the pitch angle of the wind turbine. The objective of this thesis was to develop an active power curtailment strategy for small wind turbines to prevent …
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Study of Field Enhancement by Spherical Voids in Gold Lattices by Using Three Dimensional Finite Difference Time Domain Simulations
… objective of this work was to develop an understanding why selfassembled porous and nanoporous spherical voids yield significantly higher field enhancement compared to planar gold and to explore the potential of self-assembled spherical and nanoporous spherical voids through a comprehensive full …
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Rss Based Localization In A Rayleigh Fading Environment
… are known. Further, we assume fading is Rayleigh and that the propagation constant is constant but unknown. Also, we assume that modulation is spread spectrum and that either the sensors or agents are capable of resolving multipath components down to the chip level and are capable of measuring the …
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The Development of a High-Performance Distributed Battery Management System for Large Lithium Ion Packs
… for large capacity cells was designed, built, and tested in a cycle of three revisions. The BMS was designed for use in applications where the battery pack configuration is unknown: parallel, series, or any combination. Each of the cells is equipped with its own battery management system to …
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Design of an Automotive IoT Device to Improve Driver Fault Detection Through Road Class Estimation
… an automotive IoT device capable of monitoring and reporting adverse driver habits to mitigate the occurrence of unsafe practices. The driver habits targeted are harsh braking, harsh acceleration, harsh cornering, speeding and over revving the vehicle. With the intention of evaluating and …
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Stability Analysis of Negative Resistance-Based Source Combining Power Amplifiers
… source combining topologies, a series and parallel version, are considered. Stability is analyzed using a simple and intuitive broadband approach that leverages linear circuit stability criterion and two different linearization methods: linearization around the operating point and in …
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Systems Engineering Analysis and Digital Communication Bus Design for the Cal Poly SuPER Project
With an expected lifetime of 20 years and an expected cost of $500, the Cal Poly Sustainable Power for Electrical Resources (SuPER) project needed a strong central design. This thesis looks at the work completed by students over the previous 5 years, with an eye on the future, to create the phase 2 …
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Developing a HIL-Based Software Platform for Testing Electric and Hybrid Vehicle Powertrains
… this thesis is to present a dynamometer test stand with hardware in the loop (HIL) testing capabilities for the evaluation of electric and hybrid vehicle powertrains under realistic driving conditions. The traction inverter and dc/dc converter are two crucial subsystems of the powertrain and new …
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