Artificial Neural Network Based Fault Detection and Fault Location in the DC Microgrid

Qingqing Yang, Jianwei Li, Simon Le Blond, Cheng Wang

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    69 Citations (Scopus)
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    In DC microgrid, power electronic devices may suffer from over current during short circuit faults. Since DC bus systems cannot sustain high fault currents, suitable protection strategy in DC lines is indispensable. This paper presents a novel use of artificial neural network (ANN) for fault detection and fault location in a low voltage DC bus microgrid system. In the proposed scheme, the faults on DC bus can be fast detected and then isolated without de-energizing the entire system, hence achieving a more reliable DC microgrid. The neural network is trained based on the different short circuit faults in DC bus to ensure its validity. A microgrid with ring DC bus, which is segmented into overlapping nodes and linked with circuit breakers, is built in PSCAD/EMTDC to test the performance of the protection scheme.
    Original languageEnglish
    Pages (from-to)129-134
    Number of pages6
    JournalEnergy Procedia
    Publication statusPublished - Dec 2016

    Bibliographical note

    This is an open access article under the CC BY-NC-ND license (


    • Artificial neural networkDC microgrid
    • fault detection
    • fault location
    • short circuit fault


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