Trade-off Analysis of Virtual Inertia and Fast Primary Frequency Control During Frequency Transients in a Converter Dominated Network

Michel M.N. Rezkalla, Mattia Marinelli, Michael Pertl, Kai Heussen

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

    Abstract

    Traditionally the electricity generation is based on rotating synchronous machines which provide inertia to the power system.The increasing share of converter connected energy sources reduces the available rotational inertia in the power system leading to faster frequency dynamics, which may cause more critical frequency excursions. Both, virtual inertia and fast primary control could serve as a solution to improvefrequency stability, however, their respective impacts on the system have different consequences, so that the trade-off is not straightforward. This study presents a comparative analysis of virtual inertiaand a fast primary control algorithms with respect to rate of change of frequency (ROCOF), frequency nadir and steady state value considering the effect of the dead time which is carried out by a sensitivity analysis. The investigation shows that the virtual inertia controller is effective in reducing the ROCOF comparedto fast primary control. However, it is worsening frequency nadir and steady state value. Moreover, the sensitivity analysis shows the very limited effect of the two controllers on the voltage magnitude.
    Original languageEnglish
    Title of host publication2016 IEEE PES Innovative Smart Grid Technologies Asia
    PublisherIEEE
    Publication date2016
    Pages890-895
    ISBN (Print)9781509043026
    DOIs
    Publication statusPublished - 2016
    Event2016 IEEE Innovative Smart Grid Technologies - Asia - Melbourne, Australia
    Duration: 28 Nov 20161 Dec 2016
    https://ieeexplore.ieee.org/xpl/conhome/7786610/proceeding

    Conference

    Conference2016 IEEE Innovative Smart Grid Technologies - Asia
    Country/TerritoryAustralia
    CityMelbourne
    Period28/11/201601/12/2016
    Internet address

    Keywords

    • Frequency Control
    • Virtual Inertia
    • Grid Inertia
    • Time Domain Simulation
    • Converter Connected Resources

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