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 11 of 11 for “"Partial Discharge Inception Voltage"”.
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A Comparative Analysis of Experimental and Computational Methods for Evaluating Partial Discharge Inception Voltage on Printed Circuit Boards
Partial discharge (PD) presents a significant reliability concern in medium-voltage (MV) and high-voltage (HV) systems, particularly as power electronics applications continue to push to higher voltage levels. One aspect of MV/HV system design that has not received much treatment in the literature …
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Bayesian Optimization of PCB-Embedded Electric-Field Grading Geometries for a 10 kV SiC MOSFET Power Module
… interface experimentally demonstrated a partial discharge inception voltage (PDIV) of 11.6 kV rms. When compared to a state-of-the-art descent-based optimization technique, the proposed algorithm converges 3x faster and with 7x smaller error, making both the field grading structure and …
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Double-Side Cooled 3.3 kV, 100 A SiC MOSFET Phase-Leg Modules for Traction Applications
… surface edges exposed to air, posing a risk for partial discharge. To mitigate this risk, a solution that involves covering the critical point in an epoxy was proposed, analyzed, and validated through partial discharge inception voltage tests. Steps for fabricating the module are presented. …
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PCB Busbar Design and Verification for a Multiphase SiC-based All-electric Aircraft Powertrain Converter
… distribution and extract the loss. The measured partial discharge inception voltage (PDIV), switching transients and converter-level validations are provided for insulation, thermal and commutation loop verifications. As the part of the inverter system, the integrated gate driver is designed with …
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Design of a 405/430 kHz, 100 kW Transformer with Medium Voltage Insulation Sheets
… and components must be able to handle higher voltage and current ratings at higher percentages of efficiency while also maintaining low cost and a compact footprint. To meet such demands, medium-voltage resonant converters have been favored by researchers for their ability to operate at higher …
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Nonlinear Polymer Nanocomposite for Field Grading in Medium-Voltage Power Converters under High-Altitude and Humid Environments
… designed to enhance insulation within medium-voltage (MV) power modules and suppress flashover on printed-circuit boards (PCBs) at high altitudes. Electric field simulations of the triple-point (TP) region revealed strong E-field intensification at conductor-ceramic-silicone and …
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Design and Validation of a High-Density 10 kV Silicon Carbide MOSFET Power Module with Reduced Electric Field Strength and Integrated Common-Mode Screen
… even greater strides can be made in medium-voltage systems due to the development of silicon carbide power devices with voltage ratings exceeding 10 kV. The ability of these devices to switch higher voltages faster and with lower losses than existing semiconductor technologies will …
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Insulation Design and Analysis for Medium-Voltage SiC-based Power Electronics Building Blocks
… this dissertation, a design approach for medium voltage (MV) PCB-based components, such as the dc bus, is detailed. Key considerations, including electric field (E-field) grading near power terminals and PCB edges, cable feedthroughs, and the integration of components, are explored from the …
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Fabrication Refinements of Advanced Packaging Techniques for Medium-Voltage Wirebond-less Multi-Chip Power Modules
… requirements for properly operating their medium-voltage and high-voltage systems: electric transportation, renewable energy, and the power grid. Their needs include dense power systems with higher efficiency and higher voltage and current devices. This requires devices with higher switching …
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Field-Grading in Medium-Voltage Power Modules Using a Nonlinear Resistive Polymer Nanocomposite Coating
Medium-voltage silicon carbide power devices, due to their higher operational temperature, higher blocking voltage, and faster switching speed, promise transformative possibilities for power electronics in grid-tied applications, thereby fostering a more sustainable, resilient, and reliable …
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Design of High-Density Filter Building Blocks for SiC-based Three-Phase Power Converters
… due to high ambient temperature and low peak Partial Discharge Inception Voltage (PDIV) are addressed. In addition, a novel pulse with modulation (PWM) scheme is proposed to further enhance the bandwidth of the proposed AC filter, specifically targeted to reduce the peak bearing current and …