Six-Phase Multi-Inverter System with Power Balancing and Voltage Waveform Symmetries

Analysis of operation of four-inverter-based system with split-phase (dual three-phase) induction motor under condition of the required power balancing capability of dc sources has been done. It has been shown, that modified algorithms of discontinuous space-vector modulation with the 30
⁰
-non-switching intervals allow providing both power balancing operation and improved spectral composition of the phase and line-to-line voltages of six-phase system. Results of simulation illustrate behavior of system under different control modes.