On three-phase six-switches voltage source inverter: A 150° conduction mode

Mohamed H. Saied, M. Z. Mostafa, T. M. Abdel- Moneim, H. A. Yousef

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

14 Citations (Scopus)


This paper presents a new modification for the mostcommon, simple, and well-known three-phase six-switch voltage source inverter (VSI). In this modification, each one of the six transistors conducts for 150° instead of the known 180° or 120° conduction modes. For a wye-connected load, the output phasevoltage becomes a seven-level, 12 steps waveform. This results in a 50% reduction of the total harmonic distortion (THD), 75% reduction of voltage distortion factor (DF), and the lowest harmonic order (LOH) becomes 11 rather than 5. Comprehensive study for the three conduction modes is proposed, and a comparisons with other types of voltage source inverters, like the neutral point clamped (NPC) and the multilevel inverters (MLI) were also carried out. Simulation and experimental results show the contribution of the proposed strategy.

Original languageEnglish
Title of host publicationIEEE International Symposium on Industrial Electronics
Number of pages6
Publication statusPublished - 2006
EventInternational Symposium on Industrial Electronics 2006, ISIE 2006 - Montreal, QC, Canada
Duration: Jul 9 2006Jul 13 2006


OtherInternational Symposium on Industrial Electronics 2006, ISIE 2006
CityMontreal, QC


  • 12-Step waveform
  • 150° conduction mode
  • Seven-level inverter
  • Total harmonic distortion
  • Voltage source inverters

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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