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An Investigation into the Next Generation of Ultra High Voltage DC Power Supplies

An Investigation into the Next Generation of Ultra High Voltage DC Power Supplies
An Investigation into the Next Generation of Ultra High Voltage DC Power Supplies
In recent years, there has been a growing interest, in both academia and industry, for a new generation of power supplies that are capable of producing high currents at ultra-high voltages. Unlike existing technology, these power supplies must have a high power density, making them relatively compact. This work details an investigation into potential technologies that could later be developed into working designs. First, an extensive literature review is undertaken that considers existing high voltage power supplies, and assesses the relative merits of each of them. This is in order to determine which of them shows the greatest potential for further development. It is decided that, of the selected technologies, the insulated core transformer and the cascade transformer have the greatest capacity for further improvement. Both of these types of power supply contain many common components, as they are both variations on the conventional transformer, adapted to overcome problems associated with insulation. A design for a power supply, based on either of these technologies, is proposed; along with a program to develop the high voltage components. As part of this program, a series of simulation studies are undertaken in order to establish which of the chosen technologies is suitable for use in such a design. In addition to this, practical experiments are carried out that establish that printed circuit board based transformer windings are suitable for use in high voltage applications. Finally, it is concluded that, while both technologies are suitable for power supplies that operate at voltages up to a megavolt, only the cascade transformer should be used for voltages above this.
University of Southampton
Frost, Russell
4719c204-a255-45cd-b557-56072f962b3e
Frost, Russell
4719c204-a255-45cd-b557-56072f962b3e
Lewin, Paul
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e

Frost, Russell (2020) An Investigation into the Next Generation of Ultra High Voltage DC Power Supplies. University of Southampton, Doctoral Thesis, 220pp.

Record type: Thesis (Doctoral)

Abstract

In recent years, there has been a growing interest, in both academia and industry, for a new generation of power supplies that are capable of producing high currents at ultra-high voltages. Unlike existing technology, these power supplies must have a high power density, making them relatively compact. This work details an investigation into potential technologies that could later be developed into working designs. First, an extensive literature review is undertaken that considers existing high voltage power supplies, and assesses the relative merits of each of them. This is in order to determine which of them shows the greatest potential for further development. It is decided that, of the selected technologies, the insulated core transformer and the cascade transformer have the greatest capacity for further improvement. Both of these types of power supply contain many common components, as they are both variations on the conventional transformer, adapted to overcome problems associated with insulation. A design for a power supply, based on either of these technologies, is proposed; along with a program to develop the high voltage components. As part of this program, a series of simulation studies are undertaken in order to establish which of the chosen technologies is suitable for use in such a design. In addition to this, practical experiments are carried out that establish that printed circuit board based transformer windings are suitable for use in high voltage applications. Finally, it is concluded that, while both technologies are suitable for power supplies that operate at voltages up to a megavolt, only the cascade transformer should be used for voltages above this.

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Published date: February 2020

Identifiers

Local EPrints ID: 447267
URI: http://eprints.soton.ac.uk/id/eprint/447267
PURE UUID: dbf4b11e-f7d4-4e4d-bf38-880d7e44ae0f
ORCID for Paul Lewin: ORCID iD orcid.org/0000-0002-3299-2556

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Date deposited: 08 Mar 2021 17:30
Last modified: 17 Mar 2024 02:37

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Contributors

Author: Russell Frost
Thesis advisor: Paul Lewin ORCID iD

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