High-voltage pulse generator using sequentially charged full-bridge modular multilevel converter Sub-modules, for water treatment applications

Mohamed A. Elgenedy*, Ahmed Massoud, Derrick Holliday, Shehab Ahmed, Barry W. Williams

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper proposes a new high-voltage pulse generator (PG) fed from a low-voltage DC supply Vs, which charges one arm of N series-connected full-bridge (FB) modular multilevel converter (MMC) sub-module (SM) capacitors sequentially, through a resistive-inductive branch. By utilising FB-SMs, the proposed PG is able to generate bipolar rectangular pulses of peak NVs and unipolar rectangular pulses of either polarity, at high repetition rates. Asymmetrical pulses are also possible. The proposed topology is assessed via simulation and scaled-down experimentation, which establish the viability of the topology for water treatment applications.
Original languageEnglish
Pages (from-to)4537-4544
Number of pages8
JournalJournal of Engineering
Volume2019
Issue number17
Early online date16 Apr 2019
DOIs
Publication statusPublished - Jun 2019

Keywords

  • high voltage pulse generator
  • water treatment
  • water disinfection
  • pulsed power supplies
  • pulse generators
  • HVDC power convertors
  • power capacitors
  • water treatment applications
  • PG
  • low-voltage DC supply
  • bipolar rectangular pulse
  • unipolar rectangular pulse
  • resistive-inductive branch
  • FB-SM
  • capacitor
  • full-bridge modular multilevel converter sub-modules

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