Modeling and experimental study of three-phase improved switched inductor Z-source inverter

Mohamed A. Ismeil, Mohamed Orabi, Ralph Kennel, Haitham Abu-Rub

Research output: Contribution to journalArticle

2 Citations (Scopus)


This paper presents the detailed modelling and experimental verification of a proposed three-phase Improved Switched Inductor Z-Source Inverter (ISL ZSI). Because of the limitations of classical Z-source inverter, the ISL ZSI has been proposed to increase the conversion voltage gain, to reduce the voltage stress on the capacitor of Z-network and to remove the inrush current. In this paper, a detailed model of the proposed inverter is presented and analyzed. PWM control and relationships of voltage gain and voltage stress versus modulation index are explained. Then, a detailed loss model for the ISL ZSI is derived. Simulation results are obtained to confirm the proposed topology and its loss model. Then, a prototype of 250 W is presented and experimentally tested. A good match is obtained for calculation, simulation and experiment.

Original languageEnglish
Pages (from-to)14-27
Number of pages14
JournalEPE Journal (European Power Electronics and Drives Journal)
Issue number4
Publication statusPublished - 2014



  • Boost factor
  • Loss analysis
  • Modelling
  • Switched inductor
  • Voltage stress
  • Z-source inverter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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