Control of a Three-Port DC-DC Converter for Grid Connected PV-Battery Applications

Peter Iwer Hoedt Karstensen, Kevin Tomas Manez, Zhe Zhang

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Abstract

    A control strategy for an energy management system (EMS) of a household nanogrid is presented in this paper. The proposed EMS is based on a state diagram. A three port converter (TPC) with direct storage capability is chosen and the states together with the state transitions are defined. The state diagram signals to two algorithms of which one calculates the battery current reference and the other allows the photovoltaic (PV) system to operate at the maximum power point (MPP) at all times. An extensive model has been implemented in MATLAB/Simulink using generic models to test the proposed control method. Results show a system which at all times follows a specified power exchange with the grid with a overshoot in power of 500W and worst case settling time of 500ms.
    Original languageEnglish
    Title of host publicationProceedings of 3rd International Conference on Intelligent Green Building and Smart Grid
    Number of pages4
    PublisherIEEE
    Publication date2018
    ISBN (Print)9781538606605
    DOIs
    Publication statusPublished - 2018
    Event2018 IEEE International Conference on Intelligent Green Building and Smart Grid - National Ilan University, Yilan, Taiwan, Province of China
    Duration: 22 Apr 201825 Apr 2018
    Conference number: 3
    http://igbsg.ntust.edu.tw/#
    http://igbsg.ntust.edu.tw/index.php

    Conference

    Conference2018 IEEE International Conference on Intelligent Green Building and Smart Grid
    Number3
    LocationNational Ilan University
    Country/TerritoryTaiwan, Province of China
    CityYilan
    Period22/04/201825/04/2018
    Internet address

    Keywords

    • EMS
    • PV-battery application
    • State diagram
    • Three port converter

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