Boost converter with combined control loop for a stand-alone photovoltaic battery charge system

Maria del Carmen Mira Albert, Arnold Knott, Ole Cornelius Thomsen, Michael A. E. Andersen

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    Abstract

    The converter control scheme plays an important role in the performance of maximum power point tracking (MPPT) algorithms. In this paper, an input voltage control with double loop for a stand-alone photovoltaic system is designed and tested. The inner current control loop with high crossover frequency avoids perturbations in the load being propagated to the photovoltaic panel and thus deviating the operating point. Linearization of the photovoltaic panel and converter state-space modeling is performed. In order to achieve stable operation under all operating conditions, the photovoltaic panel is linearized at the maximum power point (MPP) and at the voltage and current source regions. A settling time under 1 ms is obtained which allows fast MPP tracking implementation.
    Original languageEnglish
    Title of host publicationIEEE 14th Workshop on Control and Modeling for Power Electronics
    Number of pages8
    PublisherIEEE
    Publication date2013
    ISBN (Print)978-1-4673-4916-1
    Publication statusPublished - 2013
    EventIEEE COMPEL 2013: The 14th IEEE Workshop on Control and Modeling for Power Electronics - Fort Douglas Heritage Park, Salt Lake City, Utah, United States
    Duration: 23 Jun 201326 Jun 2013
    http://www.ieee-compel.org/

    Conference

    ConferenceIEEE COMPEL 2013
    LocationFort Douglas Heritage Park
    Country/TerritoryUnited States
    CitySalt Lake City, Utah
    Period23/06/201326/06/2013
    Internet address

    Bibliographical note

    IEEE 14th Workshop on Control and Modeling for Power Electronics (COMPEL) 2013

    Keywords

    • Photovoltaic
    • Battery
    • MPPT
    • averaged smallsignal modeling
    • Linearized PV panel

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