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 252 for “"Power Electronic"”.
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Analysis and design of power electronic cell for modular power electronic systems: DC-AC converter configurations
… and standardization of modern electrical power supply systems, the easy to use power processing configuration is becoming increasingly important. The main objective of the present research is to develop a standard cell and to meet the requirement of modular power supply system. The report …
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Thermal Management of Power Electronic Building Blocks
Development of Power Electronic Building Block (PEBB) modules, initiated through the Office of Naval Research (ONR), is a promising enabling technology which will promote future electrical power systems. Key in this development is the thermal design of a PEBB packaging scheme that will manage the …
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Indirect Matrix Converter as Standard Power Electronic Interface
… levels of distributed generation in the modern power grid and its importance in future energy systems have accelerated the interest of developing new power electronic interfaces for the energy conversion process. The feasibility of applying the indirect matrix converter as the standard power …
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Modeling and numerical methods for power electronic devices
… devices. The dynamic behavior of switched-mode power supplies is simulated by adopting a state-space representation. Piecewise linear models are used to represent the nonlinear switching devices within the power supplies. With state-space representation models, averaging techniques can be used …
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Cooling Power Electronic Building Blocks Aboard Navy Ships
The Navy Integrated Power and Energy Corridor (NiPEC) is a modular entity that encapsulates all the power handling requirements of a shipboard power and energy distribution system including transmission, conversion, protection, isolation, control and storage. The basic component of the NiPEC is the …
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Nonlinear Dynamics and Interactions in Power Electronic Systems
The nonlinear dynamics of PWM DC-DC switching regulators operating in the continuous conduction mode are investigated. A quick review of the existing analysis techniques and their limitations is first presented. A discrete nonlinear time-domain model is derived for open-loop DC-DC converters. This …
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Electrical Design Considerations and Packaging of Power Electronic Modules
<p>A modern power electronic module can save significant energy usage in the power electronic systems by improving their switching efficiencies. One way to improve the efficiency of the power electronic module is to reduce its parasitic circuit elements. The purpose of this thesis is to investigate …
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Random pulse modulation with applications to power electronic converters
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.
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Integrated Thermal Management Strategies for Embedded Power Electronic Modules
Almost all electronic devices require efficient conversion of electrical power from one form to another. Electrical power is used world wide at the rate of approximately 12 billion kW per hour. The Center for Power Electronics Systems at Virginia Tech was established with a vision to develop an …
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Electromagnetic Modeling of Packaging Layout in Power Electronic Modules
This thesis presents the modeling approaches and the challenges involved in electromagnetic modeling of packaging layout. It discusses the methodologies that are being used today. It then applies these methodologies to analyze, model and characterize three packaging technologies: (i) the wirebond …
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Neural network applications in the control of power electronic converters
… widely used PI regulator for the regulation of Power Electronic converters. Neural Networks may be used to both control of and identification in a system. In general, one assumes that the mapping performed by the Neural Network can adequately represent the system's behavior over the desired …
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Optimising AC electric railway power flows with power electronic control
… devices, is able to control the reactive power drawn from the overhead line by each equipment. If the conditions at each locomotive or train could be fed back to a central control point, it is possible for a centrally located controller to calculate optimal values for the reactive power in …
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Power Electronic Building Block Applications in Optimization, Control, and Simulation
The power buffer is introduced here as a means to decouple load-source dynamics. Ripple correlation control is analyzed and the present theory expanded upon. The ripple correlation control method is shown to be a virtually ideal optimization method that is truly plug-and-play for a class of …
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A micromachined magnetic field sensor for low power electronic compass applications
… resonator enables it to operate with very low power consumption and low excitation voltage. The interaction between an external magnetic field surrounding the sensor and the permanent magnet generates a rotating torque on the silicon resonator disc, changing the effective stiffness of the beams …
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A Variable-Structure Variable-Order Simulation Paradigm for Power Electronic Circuits
Solid-state power converters are used in a rapidly growing number of applications including variable-speed motor drives for hybrid electric vehicles and industrial applications, battery energy storage systems, and for interfacing renewable energy sources and controlling power flow in electric power …
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Design Optimization Methods for Power Electronic Converters for Electrical Nanogrids Applications
En los últimos años, el Sistema de Distribución Eléctrica ha experimentado una notable transición desde un modelo de generación centralizado hacia un marco distribuido. Esta evolución se fundamenta en la implantación e interconexión de diversas microrredes y nanorredes, que son subredes eléctricas …
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Advanced dynamic response improvement methods for dc-dc power electronic converters
<p>"Dc-dc power electronic converters supplying electric power to digital processors, data centers, and telecommunication systems are required to exhibit a fast dynamic response in response to their instantaneous electric load variations. This requirement is becoming more and more stringent as the …
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Advanced current-mode control techniques for DC-DC power electronic converters
<p>"There are many applications for dc-dc power electronic converters in industry. Considering the stringent regulation requirements, control of these converters is a challenging task. Several analog and digital approaches have already been reported in the literature. This work presents new control …
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A power electronic approach to improved dual-frequency vibration energy harvesting
Vibration energy harvesters may be used as power sources for low-power, self-sufficient, wireless industrial sensors. State-of-the-art vibration energy harvesting uses switching power electronics to synthesize compact conjugate matched loads allowing for maximum harvested power. Previous work …
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Dynamic Characterization of Wide Bandgap Devices for Power Electronic System Integration
… performance advantages for next-generation power electronic systems. However, the dynamic stresses induced by application-specific conditions present limited physical and behavioral understanding, posing critical concerns for reliability and performance degradation. Therefore, this …
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