Low-voltage DC input, high-voltage pulse generator using nano-crystalline transformer and sequentially charged MMC sub-modules, for water treatment applications

M. A. Elgenedy, A. M. Massoud, D. Holliday, S. Ahmed, B. Williams

Research output: Contribution to conferencePaper

1 Citation (Scopus)
31 Downloads (Pure)


This paper proposes a new high-voltage Pulse Generator (PG), fed from low voltage dc supply Vs. This input supply voltage is utilized to charge two arms of N series-connected modular multilevel converter sub-module capacitors sequentially through a resistive-inductive branch, such that each arm is charged to NVs. With a step-up nano-crystalline transformer of n turns ratio, the proposed PG is able to generate bipolar rectangular pulses of peak ±nNVs, at high repetition rates. However, equal voltage-second area of consecutive pulse pair polarities should be assured to avoid transformer saturation. Not only symmetrical pulses can be generated, but also asymmetrical pulses with equal voltage-second areas are possible. The proposed topology is tested via simulations and a scaled-down experimentation, which establish the viability of the topology for water treatment applications.
Original languageEnglish
Number of pages6
Publication statusPublished - 1 Oct 2017
EventIEEE Energy Conversion Congress & Exposition - Cincinnati, United States
Duration: 1 Oct 20175 Oct 2017


ConferenceIEEE Energy Conversion Congress & Exposition
Abbreviated titleECCE 2017
CountryUnited States
Internet address



  • pulse generator
  • modular multilevel converter (MMC)
  • nano-crystalline transformer
  • bipolar pulses
  • rectangular pulse-waveform

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