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 70 for “"Electrical systems"”.
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Detection of arcs in automotive electrical systems
… is a concern for forthcoming advanced automotive electrical systems which consist of higher DC electric power bus voltages, such as the automotive industry proposed 42 volt standard. At these higher voltages, wire faults can lead to stable electric arcs, which may hazardously cause insulation to …
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Modeling and simulation of commercial aircraft electrical systems
… power flow and dynamics of commercial aircraft electrical systems. This was done by creating a toolset composed of the crucial elements to model an aircraft electrical system that consists of power sources, power conversion, power distribution, and electrical loads. The considerations for the …
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Investigation of electromagnetic interference of PWM motor drives in automotive electrical systems
… Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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Low frequency, in-situ vibrating sample magnetometer : electrical systems and control software design
… This thesis focuses on the software and electrical systems of the setup. Results of research conducted using this system are published separately however this document shows the relationship between the magnetic saturation and remnance and the mass of ferromagnetic material present in the …
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The Effect of Decarbonization Factors on Deeply Decarbonized Electrical Systems: Texas Case Study
… on deep decarbonization of electricity systems. This work is centered on the impact of factors that contribute to the deep decarbonization of power systems, under a high electrification assumption and taking Texas as the case study. The factors studied are the availability and cost of …
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Design of dual-output alternators with switched-mode rectification
… new features are dramatically increasing the electrical power requirements of vehicles. The increasing power demands are becoming very challenging within the context of the present 14V electrical system and have sparked investigation of a higher-voltage electrical system. The introduction of a …
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Análisis prospectivo comparado del impacto del mercado único comunitario en el sector de la energía eléctrica: los casos de España, Francia y Portugal
… of the single common market will have on the electrical systems of Spain, France and Portugal. One of the fundamental aspects introduced when evaluating the design of the new framework of action of these electrical systems is the consideration that any lay out which attempts to modify the …
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Development of Strategies in Finding the Optimal Cooling of Systems of Integrated Circuits
The task of thermal management in electrical systems has never been simple and has only become more difficult in recent years as the power electronics industry pushes towards devices with higher power densities. At the Center for Power Electronic Systems (CPES), a new approach to power electronic …
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An Enhanced Signal Processing Toolbox for Electrical Energy Monitoring
… is presented. This approach enables targeted electrical data analysis on non-stationary electrical systems.
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Decreasing the Power Consumption of Hybrid Electric Vehicle Architectures
… are aerodynamics and passive cooling of electrical systems. Aerodynamics of an Ahmed body is investigated with a drag reduction system proposed utilizing slot jets at the rear of the bluff body . Two separate systems show a decrease in drag of 16 and 25%. The paper also investigates the …
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Propagation
… hormone – memorin – that can power their electrical grids. When a person misses someone deeply, their memorin levels skyrocket. Authorities then extract the hormone and funnel it into their cities’ electrical systems. A groundbreaking series of experiments identifies an even more potent …
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Behavioral Methods for Next-Generation Shipboard Power System Simulation: Letting SPARCS Fly
… the advancement of behavioral modeling of electrical systems to incorporate hybrid AC/DC and ring bus architectures, the development of parallelization techniques, and SPARCS: a software package offering Shipboard Parallelized Analytics with a Rapid Configuration Simulator.
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A feedback analysis of outer hair cell dynamics
… by the use of feedback in mechanical and electrical systems to accelerate slow poles, I demonstrate that negative feedback from the coupling of two mechanical modes of vibration can lead to a membrane time constant speedup and a sharpening of the mechanical response.
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GAS TURBINE CONVERSION FROM LIQUID TO GASEOUS FUEL
… emerging technologies and a growing reliance on electrical systems, the DOD and DON recognize that energy production, procurement, and usage must be further optimized and secured. This study aims to support research toward a portable and affordable electric generation system capable of supplying …
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Proposta metodológica para avaliação da demanda residencial de energia elétrica através do desenvolvimento de uma curva de carga horária
… to guarantee de safety and reliability of the electrical systems. Therefore, the need for studying demand-side management measures has increased in recent years. The use of these measures requires a solid knowledge of consumer behavior with regards to both the total power demand and consumption …
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Avaliação da estabilidade a pequenos sinais em sistemas CA/CC em paralelo
In Brazil, the rst DC transmission systems have traditionally been constructed as asynchronous interconnections of CA networks. However, with the start-up of the bipoles associated to the Belo Monte complex, the interconnection will take place in parallel with the AC system of the National …
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Design and construction of an autonomous ornithopter
… the design process of both the mechanical and electrical systems of the ornithopter and initial control experiments. We also show that it is possible to stabilize the machine in pitch with a simple PD controller through experimental testing..
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Energy flow in nonlinear circuits
… critical quantities in energy flow studies in electrical power systems. Existing definitions for these terms work well when both voltages and currents are sinusoidal with respect to time. However, both apparent and reactive power have no physical meaning. When these physically unclarified …
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Análise de zeros atrasados em unidades offshore
… asymmetric currents are expected to appear in electrical systems, whenever a short circuit occurs somewhere nearby electric generators buses. In the case of offshore production platforms, the so called asymmetry, along with other specific conditions, may give rise to the so called “delayed …
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