An asymmetrical six-phase induction motor drive based on nine-arm Modular Multilevel Converter (9AMMC) with circulating current suppression

Ahmed A. Elserougi, Ayman Abdel-Khalik, Ahmed M. Massoud, Shehab Ahmed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Asymmetrical six-phase (dual three-phase) induction motors have received significant attention in high power medium voltage drive applications. Normally, two three-phase voltage source converters are used to supply the six-phase motor. Multilevel inverters are preferred in medium voltage applications to provide a stepped output voltage waveform that not only reduces dv/dt stresses but also provides a better output current waveform. This also improves the machine torque quality and enhances the overall drive performance. Modular Multilevel Converter (MMC) is one of the promising converters in medium and high voltage applications. Instead of using two MMCs with six arms each to feed the six-phase motor, this paper proposes a new nine-arm MMC (9A-MMC) topology to drive such a motor. The proposed approach reduces the number of required dc capacitors, semiconductor devices and their gate driver circuits, which reduces system complexity and cost. The complete system analysis is presented along with the required filter to suppress the circulating currents, which is a critical issue in MMC converters, is also considered. Simulation results for the conventional and proposed systems are compared and results show the effectiveness of the proposed system.

Original languageEnglish
Title of host publication2015 4th International Conference on Electric Power and Energy Conversion Systems, EPECS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467391306
DOIs
Publication statusPublished - 29 Dec 2015
Event4th International Conference on Electric Power and Energy Conversion Systems, EPECS 2015 - Sharjah, United Arab Emirates
Duration: 24 Nov 201526 Nov 2015

Other

Other4th International Conference on Electric Power and Energy Conversion Systems, EPECS 2015
CountryUnited Arab Emirates
CitySharjah
Period24/11/1526/11/15

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Keywords

  • Circulating currents
  • Medium voltage motor drive
  • Modular multi-level converter
  • Nine-arms MMC
  • Six-phase machine

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Elserougi, A. A., Abdel-Khalik, A., Massoud, A. M., & Ahmed, S. (2015). An asymmetrical six-phase induction motor drive based on nine-arm Modular Multilevel Converter (9AMMC) with circulating current suppression. In 2015 4th International Conference on Electric Power and Energy Conversion Systems, EPECS 2015 [7368543] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EPECS.2015.7368543