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    Investigation on operating behavior of selected DC-provided components of a substation at depth discharge

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    CIRED 2019 - 2165.pdf (652.1Kb)
    Paper number
    2165
    Conference name
    CIRED 2019
    Conference date
    3-6 June 2019
    Conference location
    Madrid, Spain
    Peer-reviewed
    Yes
    Metadata
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    Authors
    Wernegger , Hans-Juergen, KNG-Kärnten Netz GmbH, Austria
    Abstract
    In case of a blackout, substations have a central meaning for grid rebuilding, in addition to line-assets and power stations. The time within substations can be remote controlled and operated without external power supply is called “autonomous-time”. It is rough defined by the capacity of the GSV-equipment (number of cells, condition, age) and the load (load- resp. consumption-behavior) of the DC-supplied components.In case of a grid restoration, which lasts longer than the autonomy-time of the substation, the battery gets depth discharged. The aim of this investigation is, to find out, how long the DC-supplied components will still operate in that case, whether and when it will come to dangerous or oscillations between batteries and DC-consumers and to see, if the DC-consumers will still operate in case of an recurring-voltage. To sum up, it can be said that, to protect the devices it is highly recommended that the operation of the DC-provided components must be avoided in case of depth discharge of the battery. A manual shut down of the battery is suggested before the expiration of the autonomous time.
    Publisher
    AIM
    Date
    2019-06-03
    Published in
    • CIRED 2019 Conference
    Permanent link to this record
    https://cired-repository.org/handle/20.500.12455/755
    http://dx.doi.org/10.34890/978
    ISSN
    2032-9644
    ISBN
    978-2-9602415-0-1

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