Developing simplified thermal models for 11 kV underground cables in Australia

J. Fulcher, D. Martin, O Krause, D.G. Caldwell, Simon M Rowland, Ognjen Marjanovic

    Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

    Abstract

    Underground cables are an essential part of the urban electricity grid. However, a disadvantage is that once they reach or even exceed their rated capacity the excessive temperature can considerably shorten the life of their insulation. The ultimate temperature reached is dependent on both the ground temperature and the thermal resistivity of surrounding soil. Modelling the temperature of the core conductor of a cable is highly beneficial because a utility can use this information during emergency overloads to assure that temperature limits are not exceeded, i.e. they can calculate the steady state temperature which would be reached during the overload. The current IEC thermal model requires numerous inputs, all of which might not be available. Consequently, a simpler thermal model based on identifying the transfer function was investigated using data supplied by a utility. The results are presented in this article.

    Original languageEnglish
    Title of host publicationProceedings of the 2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2015
    PublisherIEEE Computer Society
    ISBN (Electronic)9781467381321
    DOIs
    Publication statusPublished - 14 Jan 2016
    EventIEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2015 - Brisbane, Australia
    Duration: 15 Nov 201518 Nov 2015

    Conference

    ConferenceIEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2015
    Country/TerritoryAustralia
    CityBrisbane
    Period15/11/1518/11/15

    Keywords

    • Cable insulation
    • Plastic insulation
    • Power system management
    • Substations
    • Thermal factors

    Fingerprint

    Dive into the research topics of 'Developing simplified thermal models for 11 kV underground cables in Australia'. Together they form a unique fingerprint.

    Cite this