TECHNOLOGYANDINFORMATION工业与信息化114科学与信息化2023年9月上基于信号特征的输电线路运行故障智能检测技术吴跃华国网中卫供电公司宁夏中卫751700摘要为了提高输电线路运行故障检测效果,基于信号特征设计输电线路运行故障智能检测技术。利用信号特征分析法提取运行故障信号;根据重叠度关系确定故障信号相关程度,设定处理级别,设计运行故障智能跟踪算法,完成输电线路运行故障智能检测。实验结果表明,设计的检测技术在不同运行工况下检测到的三相故障接地电压与实际电压均较为接近,证明检测效果具有准确性,可以维护输电线路正常运行。关键词信号特征;输电;线路;运行;故障;智能检测IntelligentDetectionTechnologyofTransmissionLineOperationFaultBasedonSignalCharacteristicsWuYue-huaStateGridZhongweiPowerSupplyCompany,Zhongwei751700,NingxiaHuiAutonomousRegion,ChinaAbstractInordertoimprovethedetectioneffectoftransmissionlineoperationfault,anintelligentdetectiontechnologyfortransmissionlineoperationfaultisdesignedbasedonsignalcharacteristics.Thesignalcharacteristicanalysismethodisusedtoextracttheoperationfaultsignal;Accordingtotheoverlaprelationship,thecorrelationoffaultsignalsisdetermined,theprocessinglevelisdefined,theoperationfaultintelligenttrackingalgorithmisdesigned,andtheintelligentdetectionoftransmissionlineoperationfaultiscompleted.Theexperimentalresultsshowthat,three-phasefaultgroundvoltagedetectedbythedesigneddetectiontechnologyatdifferentoperatingconditionsisclosetotheactualvoltage,whichprovesthatthedetectioneffectisaccurateandcanmaintainthenormaloperationofthetransmissionline.Keywordssignalcharacteristics;powertransmission;line;operation;fault;intelligentdetection引言我国对电力的需求与日俱增[1],布设的输电线路越来越复杂,极易出现运行故障。若无法对运行故障进行有效检测[2],不仅会导致输电线路运行异常,还会出现严重的输电安全性问题。因此需要研究有效的输电线路运行故障智能检测技术。相关学者提出了一些研究,例如基于移动跨越架的输电线路运行故障智能检测技术[3],其主要运用网络矩阵提取故障特性,完成故障检测;基于大数据技术的输电线路运行故障智能检测技术,主要通过S变换及隐马尔可夫模型确定故障特征,实现故...