不同类型雷电冲击电压下变压器绕组电压分布特性研究周丹1,林春耀1,杨贤1,何宏明1,张轩瑞2,李军浩2(1.广东电网有限责任公司电力科学研究院,广东广州510600;2.西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049)摘要:研究表明,变压器在运行过程中所承受的雷电冲击电压在到达线端时均呈现振荡形式。为了研究不同类型雷电冲击电压在变压器绕组中分布特性的差异,本文笔者通过仿真建立变压器绕组模型,得到了不同冲击电压下绕组内部的响应。同时利用绕组分布电压测量平台,研究和分析了其分布特性及影响规律。结果表明,相比标准雷电冲击电压波形,振荡型雷电冲击对绕组端部绝缘的考核更加严格,但其对于绕组主绝缘的考核相对宽松。关键词:变压器;标准雷电冲击电压;振荡型雷电冲击电压;绕组电压分布中图分类号:TM406文献标识码:B文章编号:1001-8425(2023)03-0047-05VoltageDistributionCharacteristicsofTransformerWindingunderDifferentTypeImpulseVoltageWaveformZHOUDan1,LINChun-yao1,YANGXian1,HEHong-ming1,ZHANGXuan-rui2,LIJun-hao2(1.ElectricPowerResearchInstituteofGuangdongPowerGridCo.,Ltd.,Guangzhou510600,China;2.StateKeyLaboratoryofElectricalInsulationandPowerEquipment,Xi'anJiaotongUniversity,Xi'an710049,China)Abstract:Researchhasshownthatthelightningimpulsevoltagesufferedbythetrans-formerduringoperationallpresentsanoscillatingtype.Inordertostudythedifferencesinthedistributioncharacteristicsofdifferenttypesoflightningimpulsevoltagesinthetransformerwindings,thispaperestablishesatransformerwindingmodelthroughsimu-lation,andobtainstheinternalresponsesofthewindingsunderdifferentimpulsevolt-ages.Atthesametime,usingthewindingdistributedvoltagemeasurementplatform,thedistributioncharacteristicsareanalyzed.Theresultsshowthat,comparedwiththestan-dardlightningimpulse,theoscillatinglightningimpulsehasmorestringentassessmentsontheinsulationofthewindingends,butithasrelativelylooseassessmentsonthemaininsulationofthewindings.Keywords:Transformer;Standardlightningvoltagewaveform;Oscillatingvoltagewave-form;Voltagedistributionofwindings1引言电力变压器作为电力系统的重要组成部分之一,其安全可靠运行保证了电网的正常运...