{"title":"1000kV GIS中VFTO的分析","authors":"Xin Pan","doi":"10.1109/GEMCCON50979.2020.9456677","DOIUrl":null,"url":null,"abstract":"With the development of UHV (Ultra High Voltage) transmission technology, GIS(Gas Insulated Substation) is usually used at all levels of substations, but it will produce VFTO (Very Fast Transient Overvoltage)when operating its isolating switch. It has the characteristics of large amplitude, high frequency and fast fluctuation. It is easy to cause safety problems such as electrical insulation breakdown of GIS and related equipment. In this paper, the VFTO generated in the GIS of the 1000kV UHV transmission system is taken as the research object. Aiming at this problem, the two suppression measures including metal oxide surge arrester and parallel brake resistance are analyzed and compared by using ATP-EMTP. The simulation result show that both of these measures can effectively suppress the impact of VFTO on the entire power system.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of VFTO in 1000kV GIS\",\"authors\":\"Xin Pan\",\"doi\":\"10.1109/GEMCCON50979.2020.9456677\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"With the development of UHV (Ultra High Voltage) transmission technology, GIS(Gas Insulated Substation) is usually used at all levels of substations, but it will produce VFTO (Very Fast Transient Overvoltage)when operating its isolating switch. It has the characteristics of large amplitude, high frequency and fast fluctuation. It is easy to cause safety problems such as electrical insulation breakdown of GIS and related equipment. In this paper, the VFTO generated in the GIS of the 1000kV UHV transmission system is taken as the research object. Aiming at this problem, the two suppression measures including metal oxide surge arrester and parallel brake resistance are analyzed and compared by using ATP-EMTP. The simulation result show that both of these measures can effectively suppress the impact of VFTO on the entire power system.\",\"PeriodicalId\":194675,\"journal\":{\"name\":\"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-10-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/GEMCCON50979.2020.9456677\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GEMCCON50979.2020.9456677","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
随着特高压(UHV)输电技术的发展，气体绝缘变电站(GIS)通常用于各级变电站，但在操作其隔离开关时会产生VFTO (Very Fast Transient Overvoltage)。它具有振幅大、频率高、波动快的特点。易造成GIS及相关设备电气绝缘击穿等安全问题。本文以1000kV特高压输电系统的GIS中产生的VFTO为研究对象。针对这一问题，利用ATP-EMTP对金属氧化物避雷器和并联制动电阻两种抑制措施进行了分析比较。仿真结果表明，这两种措施都能有效地抑制VFTO对整个电力系统的影响。
With the development of UHV (Ultra High Voltage) transmission technology, GIS(Gas Insulated Substation) is usually used at all levels of substations, but it will produce VFTO (Very Fast Transient Overvoltage)when operating its isolating switch. It has the characteristics of large amplitude, high frequency and fast fluctuation. It is easy to cause safety problems such as electrical insulation breakdown of GIS and related equipment. In this paper, the VFTO generated in the GIS of the 1000kV UHV transmission system is taken as the research object. Aiming at this problem, the two suppression measures including metal oxide surge arrester and parallel brake resistance are analyzed and compared by using ATP-EMTP. The simulation result show that both of these measures can effectively suppress the impact of VFTO on the entire power system.
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