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Fuzzy assessment of power system transient stability level based on steady-state data

  • S. K. Tso
  • , L. Guan
  • , Q. Y. Zeng
  • , K. L. Lo

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Abstract

    Following extensive analysis of the relationships between the transient instability behaviour of large-scale power systems and the corresponding prefault operating states, a novel heuristic method based on fuzzy reasoning is proposed in the paper for the fast evaluation of the power system transient stability level (TSL). A notable feature of this method is that it does not rely on the step-by-step simulation process and only system load-flow data under normal operating conditions are used for the assessment. A generalised critical clearing time (GCCT) is defined that can be predicted by the proposed method to describe the TSL. Digital simulations based on two power systems show that the proposed method provides broadly conclusive and decisive real-time information about the stability states of the studied power systems. © IEE, 1997.
    Original languageEnglish
    Pages (from-to)525-531
    JournalIEE Proceedings: Generation, Transmission and Distribution
    Volume144
    Issue number6
    DOIs
    Publication statusPublished - 1997

    Bibliographical note

    Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

    Research Keywords

    • Fuzzy reasoning
    • Power system stability
    • Transient stability level

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