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Contingency ranking selection using static security performance indices in future grids
conference contribution
posted on 2020-11-29, 00:00 authored by Lakna Liyanarachchi, Nasser HosseinzadehNasser Hosseinzadeh, Apel MahmudApel Mahmud, Ameen GargoomAmeen Gargoom, E M FarahaniPower system security assessment and enhancement in grids with high penetration of renewables is critical for pragmatic power system planning. Static Security Assessment (SSA) is a fast response tool to assess system stability margins following considerable contingencies assuming post fault system reaches a steady state. This paper presents a contingency ranking methodology using static security indices to rank credible contingencies considering severity. A Modified IEEE 9 bus system integrating renewables was used to test the approach. The static security indices used independently provides accurate results in identifying severe contingencies but further assessment is needed to provide an accurate picture of static security assessment in an increased time frame of the steady state. The indices driven for static security assessment could accurately capture and rank contingencies with renewable sources but due to intermittency of the renewable source various contingency ranking lists are generated. This implies that using indices in future grids without consideration on intermittent nature of renewables will make it difficult for the grid operator to identify severe contingencies and assist the power system operator to make operational decisions. This makes it necessary to integrate the behaviour of renewables in security indices for practical application in real time security assessment.
History
Event
AUPEC 2020. Power Engineering. Australasian Universities Conference (2020 : Hobart, Tasmania)Publisher
Institute of Electrical and Electronics EngineersLocation
Hobart, Tasmania & OnlinePlace of publication
Piscataway, N.J.Start date
2020-11-29End date
2020-12-02ISSN
2474-1493eISSN
2474-1507ISBN-13
9781922352767Language
engPublication classification
E1 Full written paper - refereedCopyright notice
2020, IEEEEditor/Contributor(s)
Michael NegnevitskyTitle of proceedings
AUPEC 2020 : Proceedings of the Australasian Universities Power Engineering ConferenceUsage metrics
Categories
Keywords
radiation effectspower system stabilityreal-time systemssteady-stateperformance analysisindexespower system securityScience & TechnologyTechnologyEngineering, Electrical & ElectronicEngineeringStatic Security AssessmentContingency RankingContingency SelectionReal Power Performance IndexVoltage Performance IndexRenewable technologies