Two-dimensional analysis and design considerations of high-voltage planar junctions equipped with field plate and guard ring

Increased specimen penetration; the principle advantage of high voltage microscopy, is accompanied by an increased need to utilize information on three dimensional specimen structure available in the form of two dimensional projections (i.e. micrographs). We are engaged in a program to develop methods which allow the maximum use of information contained in a through tilt series of micrographs to determine three dimensional speciman structure.In general, we are dealing with structures lacking in symmetry and with projections available from only a limited span of angles (±60°). For these reasons, we must make maximum use of any prior information available about the specimen. To do this in the most efficient manner, we have concentrated on iterative, real space methods rather than Fourier methods of reconstruction. The particular iterative algorithm we have developed is given in detail in ref. 3. A block diagram of the complete reconstruction system is shown in fig. 1.

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DESIGN CONSIDERATIONS OF HIGH VOLTAGE BATTERY PACKS FOR ELECTRIC BUSES

International Journal of Advances on Automotive and Technology ◽

10.15659/ijaat.17.04.517 ◽

2017 ◽

Author(s):

MEHMET UĞRAŞ CUMA ◽

EMRAH YİRİK ◽

ÇAĞLA DERİCİOĞLU ◽

ERDEM ÜNAL ◽

BURAK ONUR ◽

...

Keyword(s):

High Voltage ◽

Design Considerations ◽

Battery Packs ◽

High Voltage Battery

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Analysis and Design of 3.3 kV IGBT Based Three-Level DC/DC Converter with High-Frequency Isolation and Current Doubler Rectifier

Scientific Journal of Riga Technical University Power and Electrical Engineering ◽

10.2478/v10144-009-0022-2 ◽

2009 ◽

Vol 25 (25) ◽

pp. 103-108

Author(s):

Dmitri Vinnikov ◽

Tanel Jalakas ◽

Indrek Roasto

Keyword(s):

High Voltage ◽

High Frequency ◽

Power Converter ◽

Rolling Stock ◽

Analysis And Design ◽

Auxiliary Power ◽

Igbt Modules ◽

Isolation Transformer ◽

New Generation ◽

Generation Power

Analysis and Design of 3.3 kV IGBT Based Three-Level DC/DC Converter with High-Frequency Isolation and Current Doubler RectifierThe paper presents the findings of a R&D project connected to the development of auxiliary power supply (APS) for the high-voltage DC-fed rolling stock applications. The aim was to design a new-generation power converter utilizing high-voltage IGBT modules, which can outpace the predecessors in terms of power density, i.e. to provide more power for smaller volumetric space. The topology proposed is 3.3 kV IGBT-based three-level neutral point clamped (NPC) half-bridge with high-frequency isolation transformer and current doubler rectifier that fulfils all the targets imposed by the designers. Despite an increased component count the proposed converter is very simple in design and operation. The paper provides an overview of the design with several recommendations and guidelines. Moreover, the simulation and experimental results are discussed and the performance evaluation of the proposed converter is presented.

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