计及风机短路电流偏移特性的配电网阻抗幅值差动保护方法-豆柴文库

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计及风机短路电流偏移特性的配电网阻抗幅值差动保护方法
Title:DifferentialProtectionMethodforDistributionNetworkImpedanceAmplitudeConsideringFanShort-CircuitCurrentOffsetCharacteristics
Abstract:
Thedistributionnetworkissusceptibletovariouselectricalfaults,andprotectingitfromdamageisofutmostimportance.Differentialprotectionisoneofthewidelyusedmethodsfordetectingandisolatingfaultsinpowersystems.However,traditionaldifferentialprotectionmethodsmaynotaccountforcertaincomplexities,suchastheoffsetcharacteristicsoffanshort-circuitcurrents.Thispaperaimstoproposeadifferentialprotectionmethodthatconsiderstheimpedanceamplitudedifferenceofthedistributionnetwork,takingintoaccounttheuniquecharacteristicsoffanshort-circuitcurrents.Thepaperdiscussesthedesign,implementation,andtestingoftheproposedprotectionmethod.
1.Introduction
1.1Background
1.2Objective
1.3Scopeofthestudy
2.OverviewofDifferentialProtection
2.1PrinciplesofDifferentialProtection
2.2AdvantagesandLimitations
2.3ExistingDifferentialProtectionMethods
3.FanShort-CircuitCurrentOffsetCharacteristics
3.1CausesofFanShort-CircuitCurrentOffset
3.2ImpactonImpedanceDifferentialProtection
3.3ImportanceofConsideringFanShort-CircuitCurrentOffset
4.ProposedDifferentialProtectionMethod
4.1DesignConsiderations
4.2DifferentialImpedanceBlockDiagram
4.3ImpedanceAmplitudeComparisonAlgorithm
4.4SchemeofImplementation
5.SimulationandTesting
5.1SimulationSetup
5.2PerformanceEvaluationMetrics
5.3ComparativeAnalysiswithTraditionalDifferentialProtectionMethods
5.4ResultsandDiscussion
6.CaseStudy
6.1DescriptionoftheDistributionNetwork
6.2FaultAnalysis
6.3EvaluationoftheProposedDifferentialProtectionMethod
6.4ComparisonwithTraditionalMethods
7.PracticalImplementation
7.1HardwareRequirements
7.2InstallationProcedure
7.3OperationalConsiderations
8.DiscussionandConclusion
8.1DiscussionofFindings
8.2AdvantagesandLimitationsoftheProposedMethod
8.3ConcludingRemarks
References
Thispaperaimstoexplorethedeficienciesoftraditionaldifferentialprotectionmethodsandproposeanewmethodthatcon