A Full-Bridge Submodule-Based Modular Unipolar/Bipolar High-Voltage Pulse Generator with Sequential Charging of Capacitors

Ahmed A. Elserougi, Ibrahim Abdelsalam, Ahmed M. Massoud, Shehab Ahmed

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Repetitive high pulsed electric field (PEF) is an effective method to kill microorganisms and bacteria in water treatment applications. The PEF can be generated by applying high-power electromagnetic pulse across the sample to be treated. There are two main types of high-voltage pulse generators, namely, unipolar and bipolar. In this paper, a full-bridge submodule-based modular high-voltage pulse generator, having the ability to generate unipolar and bipolar high-voltage pulses with different shapes from a relatively low-voltage input dc supply, is proposed. In the proposed configuration, relatively low-voltage insulated gate bipolar transistors (IGBTs) are required to generate the high-voltage bipolar pulses. A thyristor rated at the level of the pulsed output voltage is required in the proposed configuration to bypass the load during the charging process of capacitors. In the proposed approach, a thyristor is used instead of the self-commutated high-voltage switch (e.g., series-connected IGBTs), as thyristors are available with high-voltage ratings and possess inherent reverse voltage blocking capability. A detailed illustration of the proposed configuration and its operational concept are introduced in this paper. Simulation and experimental results are presented to validate the proposed approach.

Original languageEnglish
Article number7779141
Pages (from-to)91-99
Number of pages9
JournalIEEE Transactions on Plasma Science
Volume45
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

pulse generators
charging
high voltages
capacitors
thyristors
bipolar transistors
low voltage
configurations
water treatment
electromagnetic pulses
electric fields
bypasses
ratings
electric potential
microorganisms
pulses
bacteria
switches
output
simulation

Keywords

  • Full-bridge
  • modular
  • pulsed power system

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

A Full-Bridge Submodule-Based Modular Unipolar/Bipolar High-Voltage Pulse Generator with Sequential Charging of Capacitors. / Elserougi, Ahmed A.; Abdelsalam, Ibrahim; Massoud, Ahmed M.; Ahmed, Shehab.

In: IEEE Transactions on Plasma Science, Vol. 45, No. 1, 7779141, 01.01.2017, p. 91-99.

Research output: Contribution to journalArticle

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