Single-phase current source inverter with reduced ground leakage current for photovoltaic applications

Giovanni Migliazza, Emilio Lorenzani, Fabio Immovilli, Giampaolo Buticchi

    Research output: Journal PublicationArticlepeer-review

    5 Citations (Scopus)


    Integrated power electronics for photovoltaic applications has attracted increasing interest, due to the possibility of having grid-connected photovoltaic modules with independent maximum power point tracking and high reliability. In this paper, a single-phase Current Source Inverter (CSI) is discussed for a photovoltaic application. The basic CSI topology will be explained for the sake of completeness, highlighting its main features and analyzing the ground leakage current problem, an important benchmark for photovoltaic application. A novel topology, called CSI5, is proposed in this work. The main feature is the presence of additional switches for ground leakage current reduction. The performance of the proposed topology is assessed by numerical simulation, and the experimental results confirm that this solution is able to strongly reduce the ground leakage current and conduction power losses.

    Original languageEnglish
    Article number1618
    Pages (from-to)1-15
    Number of pages15
    JournalElectronics (Switzerland)
    Issue number10
    Publication statusPublished - Oct 2020


    • Current source inverter
    • Photovoltaic power system
    • Power electronics

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Signal Processing
    • Hardware and Architecture
    • Computer Networks and Communications
    • Electrical and Electronic Engineering


    Dive into the research topics of 'Single-phase current source inverter with reduced ground leakage current for photovoltaic applications'. Together they form a unique fingerprint.

    Cite this