串并联型软开关短路故障保护方案

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关键词：串并联型软开关；柔性互联；短路电流；故障检测；故障保护DOI：10. 15938/j. jhust.2025.06.012中图分类号：TM46 文献标志码：A 文章编号：1007-2683（2025）06-0111-08

Abstract：The iterature proposes aseries-shunt typesoft normallyoen point （Series-Shunt SNOP，-SNOP），characterized by smallsize，lowost，ndigowerdesityDetoeiherentcaracteristisofteserieshuntopoloteS-OPisableto effectivelyisolateduringgridshort-circuitfaults，leadingtoriskssuchasdmagetothedeviceitselfandmisoperationofnon-faulty feders.Thispaper，asedotetopologyandworkingprincipleofS-O，proposesasetofdistributionnetworkshort-ciuitfault protectionschemesfortheseries-shunt typesoft switchSS-SNOP，whichcanachieveprotectionofthedevice，rapidfaultlocationand isolation，andckrcoveryfofultfedersThsaperelaboratesindetailtefultsortircuitcharacteristicsoftedistribution federsintercoectedwithS-SNOPandthedsignmethodoftheproposedfaultprotectionschee.Thefeasibilityandefectiveesof the proposed scheme are validated through simulation.

Keywords：series-shunt typesoft norallopenpoint;flexible interconecton；short circuitcuent； fault detection；fault protec tion

0 引言

随着分布式可再生能源和新型直流负荷的渗透率不断增加，配电网电压越限、馈线过载和反向潮流倒送问题愈发严重[1-5]。（剩余10724字）