Impact of the Modulation Strategy on the Dimensioning of Three-Phase Z-Source Inverters

  • Autor:

    Thomas Lannert, Emanuel Mittwede, Raimund Kempf, Michael Braun

  • Quelle:

    International Conference on Indutrial Technology (ICIT) 2015, Seville, Spain

  • Datum: 17.-19. März 2015
  • Abstract - In Z-Source Inverters (ZSI), the modulation strategy
    determines the size of the inductors and capacitors as well as the
    system losses. In this paper the impact of the modulation method
    on the design of the passive components is examined in detail with
    an Interior Permanent Magnet Synchronous Machine as load.
    Specific features of several modulation methods are presented for
    steady state operation and guidelines for the design procedure
    are developed. It will be shown, that a large number of Shoot-
    Through states does not necessarily lead to small ripples in the
    passive components. From these considerations, a method for
    minimizing the required inductance and ZSI losses is established.
    Simulations and experimental results, including the measurement
    of the system losses support the analysis