应急突发事件下配电网安全承载能力评估

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中图分类号：TM715 文献标志码：A 文章编号：1007-2683（2025）02-0114-08

Abstract：Withthe widespreadapplicationof distributed power sources andenergy storagedevices，distribution networks exhibit moreunknowncharacteristics.Emergencyincidents inthepower systemposeasignificanttreattothestableandscureoperationof thegrid.Inoder toanalyethesecuitycaringcapacityofdistrbutionnetorks，wefistconstructodeinfluenceidicatosasedon M-orderneighborquantityandentropytheory.Subsequently，considering theipactofemergencyincidentsonthedistrbutionofpower flows，asecuritycaryingcapacityevaluationmethodthatconsiderspowerflowdistributionbalanceinthegridisproposed. Aditionallyrategfoeletingitialsfetyostraintsasedoniteratiemethodisintroducedaningsutiocy byfocusingsolelyoncrucialsafetyconstraintsintheoptimizationmodeltosatisfyallfeasiblepowerflows.Finally，theevaluation model isappliedtoanalyetheIEE33-odetestsystem，validatingtheproposedapproachforaalyzingthescuritycaringapacity ofdistributionnetworksunderemergencyincidentswhileensuingeconomicviabilityandaligningwithcurrntdevelopmentneedsin distribution networks.

Keywords：carryingcapacity；node influence indicators；M-order neighbor number；securityconstraints；balance degree of powe flow distribution

0 引言

近年来，我国分布式电源的建设与使用规模持续迅速增加，2020年，我国新增风电装机7167万kW 、光伏发电4820万 kW ，远高于市场预测增速[1-2]。（剩余11957字）