Nonlinear Network Equivalents of Systems with Inverter Based Resources to Study Unbalanced Faults in Steady State

Ilhan Kocar, Yuanzhu Chang, Renan M. Furlaneto, Ahda Grilo-Pavani, Aboutaleb Haddadi, Evangelos Farantatos

    Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

    2 Citations (Scopus)

    Abstract

    This paper proposes a method to obtain steady state short circuit network equivalents of systems with Inverter-Based Resources (IBRs) in the positive and negative sequence domains. Such an equivalent model improves the efficiency of short circuit simulation studies by reducing the computational burden while preserving simulation accuracy. The proposed network equivalent in the positive sequence domain consists of a Thevenin equivalent circuit in parallel with a voltage dependent nonlinear current source to account for the combination of conventional synchronous generators and IBRs. The representation in the negative sequence system depends on the fault-ride-through requirements, IBR type, and IBR control scheme. The proposed network equivalents in the positive and negative sequence domains are shown to successfully reproduce the fault response of a detailed system at a given point of interconnection with an external network.

    Original languageEnglish
    Title of host publication2022 IEEE Power and Energy Society General Meeting, PESGM 2022
    PublisherIEEE Computer Society
    ISBN (Electronic)9781665408233
    DOIs
    Publication statusPublished - Jul 2022
    Event2022 IEEE Power and Energy Society General Meeting, PESGM 2022 - Denver, United States
    Duration: 17 Jul 202221 Jul 2022

    Publication series

    NameIEEE Power and Energy Society General Meeting
    Volume2022-July
    ISSN (Print)1944-9925
    ISSN (Electronic)1944-9933

    Conference

    Conference2022 IEEE Power and Energy Society General Meeting, PESGM 2022
    Country/TerritoryUnited States
    CityDenver
    Period17/07/2221/07/22

    Keywords

    • doubly fed induction generator (DFIG)
    • full-scale converter (FSC)
    • Inverter-based resources
    • network equivalents
    • unbalanced faults

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Nuclear Energy and Engineering
    • Renewable Energy, Sustainability and the Environment
    • Electrical and Electronic Engineering

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