Modeling, Analysis, and Parameters Design of LC-Filter-Integrated Quasi-Z-Source Indirect Matrix Converter

Shuo Liu, Baoming Ge, Yushan Liu, Haitham Abu-Rub, Robert Balog, Hexu Sun

Research output: Contribution to journalArticle

22 Citations (Scopus)


Through coupling the impedance network between the grid and the conventional indirect matrix converter (IMC), the LC-filter-integrated quasi-Z-source (qZS) IMC overcomes the 0.866 voltage gain limitation of the conventional IMC and also avoids the input filter that is required to mitigate current harmonics of the conventional qZS matrix converters. This paper further investigates the voltage boosting and LC filtering function of the LC-filter-integrated qZS IMC. The voltage gain, the filtering function, and qZS network parameters design are presented using a small-signal model and circuit analysis. Simulation and experimental results validate the built model, the voltage gain analysis, and the parameters design of this type of qZS IMC. The input current of the LC-filter-integrated qZS network is compared to the conventional Z-source and qZS IMCs to investigate the integrated LC filtering capability. The experimental results verify that the LC-filter-integrated qZS network provides the necessary filtering function. Thus, the traditional input filter can be eliminated, which reduces the cost, power loss, volume, and weight for the overall system, when compared with the other conventional topologies that require the input filter, even those with impedance-source networks.

Original languageEnglish
Article number7452412
Pages (from-to)7544-7555
Number of pages12
JournalIEEE Transactions on Power Electronics
Issue number11
Publication statusPublished - 1 Nov 2016



  • Filter
  • matrix converter
  • modeling
  • quasi-Z-source inverter
  • voltage gain

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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