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Series connected quasi-six-phase two-motor drives with independent control

Author

Listed:
  • Jones, Martin
  • Levi, Emil

Abstract

Recent research has shown that it is possible to connect in series stator windings of multi-phase machines and control all the machines in the group independently using vector control principles, although the complete multi-drive system is supplied from a single multi-phase voltage source inverter (VSI). The concept has been investigated so far only for symmetrical n-phase machines (i.e., machines with spatial displacement between any two consecutive phases equal to 2π/n). This paper considers all possible configurations for the asymmetrical six-phase machines, with two three-phase stator windings displaced by 30°. Two possible two-motor configurations are presented. The first one utilises two quasi-six-phase machines while the second one connects in series a quasi-six-phase machine and a two-phase machine. Inverter current control schemes in both the stationary reference frame and the rotating reference frame are considered. Verification of the proposed multi-phase multi-machine drive is provided by simulation and the results are given in the paper.

Suggested Citation

  • Jones, Martin & Levi, Emil, 2006. "Series connected quasi-six-phase two-motor drives with independent control," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 71(4), pages 415-424.
    • Handle: RePEc:eee:matcom:v:71:y:2006:i:4:p:415-424
    DOI: 10.1016/j.matcom.2006.02.002
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