A Review of Power Decoupling Techniques for Microinverters With Three Different Decoupling Capacitor Locations in PV Systems

    Authors

    H. B. Hu; S. Harb; N. Kutkut; I. Batarseh;Z. J. Shen

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Power Electron.

    Keywords

    Lifetime; microinverter; photovoltaic (PV); power decoupling; reliability; single-phase inverter; DC-DC CONVERTER; PHOTOVOLTAIC APPLICATIONS; BIDIRECTIONAL CONVERTER; PWM; RECTIFIER; INVERTER; OPTIMIZATION; Engineering, Electrical & Electronic

    Abstract

    The reliability of the microinverter is a very important feature that will determine the reliability of the ac-module photovoltaic (PV) system. Recently, many topologies and techniques have been proposed to improve its reliability. This paper presents a thorough study for different power decoupling techniques in single-phase microinverters for grid-tie PV applications. These power decoupling techniques are categorized into three groups in terms of the decoupling capacitor locations: 1) PV-side decoupling; 2) dc-link decoupling; and 3) ac-side decoupling. Various techniques and topologies are presented, compared, and scrutinized in scope of the size of decoupling capacitor, efficiency, and control complexity. Also, a systematic performance comparison is presented for potential power decoupling topologies and techniques.

    Journal Title

    Ieee Transactions on Power Electronics

    Volume

    28

    Issue/Number

    6

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    2711

    Last Page

    2726

    WOS Identifier

    WOS:000314701200011

    ISSN

    0885-8993

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