特高压换流变压器绝缘油老化特性研究
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摘要
我国特高压设备的设计制造水平在国际上尚处于跟跑阶段,作为特高压工程的核心部件,特高压换流变压器的精益化设计对提高我国特高压装备水平意义重大。针对±1100kV特高压换流变压器设计过程中的基础问题,基于老化试验结果,对绝缘油的性能进行了研究。首先选取了可能用于特高压换流变压器的3种绝缘油,对其进行130℃热老化试验,测量试验过程中聚合度(DP),油中酸值,水分质量分数,介电常数,介损,电阻率,运动黏度以及交流击穿电压变化情况进行分析,得到较优的绝缘油选择。同时考虑特高压换流变压器的复杂运行工况,分析特高压换流变压器的用油要求,根据实验结果,分析3种绝缘油的综合性能,最终得到较优的绝缘油型号,为特高压换流变压器的设计制造提供技术支撑。
The design and manufacturing of UHVDC equipment is still in the low stage in our country. It is significant to improve the manufacture level of UHVDC converter transformer which is the core component of UHVDC systems. According to the fundamental problem in the design process of ±1 100 kV converter transformer, this paper analyzesthe insulation properties of oilbasing on the aging experimental results. Three kinds of oilareselected and then the thermal aging experiment is conducted under 130 degree centigrade. According to the experiment results such as the degree of polymerization(DP), acid, moisture content, dielectric constant, dielectric loss, resistivity, viscosity and the AC breakdown voltage, this paper finally gets the optimum kind of oil. Moreover, taking the complicated operating condition of UHVDC converter transformer and the oil requirement for converter transformer into consideration, this paper analyzes the comprehensive performance of three insulation oil and finally gets a better choice of oil. In the end, this paper provides the significant technical support to the manufacture of UHVDC converter transformer.
The design and manufacturing of UHVDC equipment is still in the low stage in our country. It is significant to improve the manufacture level of UHVDC converter transformer which is the core component of UHVDC systems. According to the fundamental problem in the design process of ±1 100 kV converter transformer, this paper analyzesthe insulation properties of oilbasing on the aging experimental results. Three kinds of oilareselected and then the thermal aging experiment is conducted under 130 degree centigrade. According to the experiment results such as the degree of polymerization(DP), acid, moisture content, dielectric constant, dielectric loss, resistivity, viscosity and the AC breakdown voltage, this paper finally gets the optimum kind of oil. Moreover, taking the complicated operating condition of UHVDC converter transformer and the oil requirement for converter transformer into consideration, this paper analyzes the comprehensive performance of three insulation oil and finally gets a better choice of oil. In the end, this paper provides the significant technical support to the manufacture of UHVDC converter transformer.
引文
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[8]唐超.油纸绝缘介质的直流空间电荷特性研究[D].重庆:重庆大学,2010.TANGChao.StudiesontheDCspacechargecharacteristicsofoil-paper insulation materials[D]. Chongqing, China:Chongqing Uni-versity, 2010.
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[10]WEIYH,MUHB,DENGJB,etal.Effectofspacechargeonbreakdown characteristics of aged oil-paper insulation under DC volt-age[J].IEEETransactionsonDielectricsandElectricalInsulation,2016, 23(5):3143-3150.
[11]SIMA W, SUN P, YANG M, et al. Effect of space charge on the accu-mulativecharacteristicsofoilpaperinsulationunderrepeatedlightning impulses[J]. IEEE Transactions on Dielectrics and ElectricalInsulation, 2015, 22(5):2483-2490.
[12]陈庆国,张杰,高源,等.混合电场作用下换流变压器阀侧绕组电场分析[J].高电压技术,2008,34(3):484-488.CHEN Qingguo, ZHANG Jie, GAO Yuan, et al. Analysis of complexelectrical field on valve side winding of converter transformer[J]. HighVoltage Engineering, 2008, 34(3):484-488.
[13]张燕秉,郑劲,汪德华,等.特高压直流换流变压器的研制[J].高电压技术,2010,36(1):255-264.ZHANG Yanbing, ZHENG Jin, WANG Dehua, et al. Development ofUHVDCconvertertransformer[J].HighVoltageEngineering,2010,36(1):255-264.
[14]吴哲.大型换流变压器的电场分析与绝缘结构改进的研究[D].沈阳:沈阳工业大学,2013.WU Zhe. Electric field analysis and the research of insulation structureimprovement of the large converter transformers[D]. Shenyang, China:Shenyang University of Technology, 2013.
[15]LIJ,HEZ,GRZYBOWSKIS.Electricalaginglifetimemodelofoil-impregnated paper under pulsating DC voltage influenced by tem-perature[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2013, 20(6):1992-1997.
[16]SUN P, SIMA W, YANG M, et al. Influence of thermal aging on thebreakdowncharacteristicsoftransformeroilimpregnatedpaper[J].IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(6):3373-3381.
[17]王永红.换流变压器油纸绝缘击穿特性[D].哈尔滨:哈尔滨理工大学,2013.WANGYonghong.Breakdowncharacteristicsofoilandpressboardinsulation in converter transformer[D]. Harbin, China:Harbin Univer-sity of Science and Technology, 2013.
[18]LUNDGAARDLE,HANSENW,LINHJELLD.Agingofoil-impregnated paper in power transformers[J]. IEEE Transactions onPower Delivery, 2004, 19(1):230-239.
[19]FERNáNDEZ I, DELGADO F, ORTIZ F, et al. Thermal degradationassessment of Kraft paper in power transformers insulated with naturalesters[J]. Applied Thermal Engineering,2016, 104:129-138.
[20]张漪,马书杰,于会民.国内外矿型变压器油产品标准及产品性能分析[J].润滑油,2006,7(4):43-45.ZHANG Qi, MA Shujie, YU Huimin. Product standards and perfor-manceanalysisofmineraltransformeroilsathomeandabroad[J].Lubricating Oil, 2006, 7(4):43-45.
[21]马书杰,张玲俊,于会民,等.超高压交直流通用变压器油的开发[J].润滑油,2003,18(增刊1):48-56.MA Shujie, ZHANG Lingjun, YU Huimin, et al. The Development ofultra-high voltage AC/DC general purpose transformer oils[J]. Lubri-cating Oil, 2003, 18(Supplement 1):48-56.
[22]李峻峰,张静,何军,等.超高压直流输电换流变绝缘油[J].石油科技论坛,2014,33(1):66-68.LI Junfeng, ZHANG Jing, HE Jun, et al. Ultra-high voltage convertertransformer insulting oil[J]. Oil Forum, 2014, 33(1):66-68.
[23]周利军,李先浪,段宗超,等.纤维素老化对油纸绝缘水分扩散特性的影响机制[J].中国电机工程学报,2014,34(21):3541-3547.ZHOU Lijun, LI Xianlang, DUAN Zongchao, et al. Influence of cel-luloseagingoncharacteristicsofmoisturediffusioninoil-paperinsulation[J]. Proceedings of the CSEE, 2014, 34(21):3541-3547.
[24]唐超,廖瑞金,黄飞龙,等.电力变压器绝缘纸热老化的击穿电压特性[J].电工技术学报,2010,25(11):1-8.TANGChao,LIAORuijin,HUANGFeilong,etal.Thebreakdownvoltage of power transformer insulation paper after thermal aging[J].Transations of China Electrotechnical Society, 2010, 25(11):1-8.
[25]LIH,ZHONGL,YUQ,etal.Theresistivityofoilandoil-impregnated pressboard varies with temperature and electric fieldstrength[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2014, 21(4):1851-1856.
[26]王健一,李金忠,张书琦,等.以天然气为原料的气制变压器油的典型性能分析[J].高电压技术,2016,42(9):2974-2979.WANG Jianyi, LI Jinzhong, ZHANG Shuqi, et al. Typical propertiesanalysis of gas-to-liquid transformer oil with natural gas as raw mate-rial[J]. High Voltage Engineering, 2016, 42(9):2974-2979.
[2]虞菊英.我国特高压交流输电研究现状[J].高电压技术,2005,31(12):23-25.YU Juying. Analysis of research on UHV AC transmission in China[J].High Voltage Engineering, 2005, 31(12):23-25.
[3]周浩,余宇红.我国发展特高压输电中一些重要问题的讨论[J].电网技术,2005,29(12):1-9.ZHOU Hao, YU Yuhong, Discussion on several important problems ofdeveloping UHV AC transmission in China[J]. Power System Tech-nology, 2005, 29(12):1-9.
[4]周小谦.我国“西电东送”的发展历史、规划和实施[J].电网技术,2003,27(5):1-5.ZHOUXiaoqian.Development, planningandimplementation oftheproject of power transmission from west China to east China[J]. PowerSystem Technology, 2003, 27(5):1-5.
[5]丁伟,胡兆光.特高压输电经济比较研究[J].电网技术,2006,30(19):7-13.DING Wei, HU Zhaoguang. The research on the economy comparisonofultrahighvoltage[J].PowerSystemTechnology,2006,30(19):7-13.
[6]刘振亚,张启平,董存,等.通过特高压直流实现大型能源基地风、光、火电力大规模高效率安全外送研究[J].中国电机工程学报,2014,34(16):2513-2522.LIU Zhenya, ZHANG Qiping, DONG Cun, et al. Efficient and securi-ty transmission of wind, photovoltaic and thermal power of large-scaleenergy resource bases through UHVDC projects[J]. Proceedings of theCSEE, 2014, 34(16):2513-2522.
[7]刘振亚,张启平.国家电网发展模式研究[J].中国电机工程学报,2013,33(7):1-10,25.LIU Zhenya, ZHANG Qiping. Study on the development mode of na-tional power grid of China[J]. Proceedings of the CSEE, 2013, 33(7):1-10, 25.
[8]唐超.油纸绝缘介质的直流空间电荷特性研究[D].重庆:重庆大学,2010.TANGChao.StudiesontheDCspacechargecharacteristicsofoil-paper insulation materials[D]. Chongqing, China:Chongqing Uni-versity, 2010.
[9]CHAO T, CHEN G, FU M, et al. Space charge behavior in multi-layeroil-paper insulation under different DC voltages and temperatures[J].IEEE Transactions on Dielectrics and Electrical Insulation, 2010, 17(3):778-788.
[10]WEIYH,MUHB,DENGJB,etal.Effectofspacechargeonbreakdown characteristics of aged oil-paper insulation under DC volt-age[J].IEEETransactionsonDielectricsandElectricalInsulation,2016, 23(5):3143-3150.
[11]SIMA W, SUN P, YANG M, et al. Effect of space charge on the accu-mulativecharacteristicsofoilpaperinsulationunderrepeatedlightning impulses[J]. IEEE Transactions on Dielectrics and ElectricalInsulation, 2015, 22(5):2483-2490.
[12]陈庆国,张杰,高源,等.混合电场作用下换流变压器阀侧绕组电场分析[J].高电压技术,2008,34(3):484-488.CHEN Qingguo, ZHANG Jie, GAO Yuan, et al. Analysis of complexelectrical field on valve side winding of converter transformer[J]. HighVoltage Engineering, 2008, 34(3):484-488.
[13]张燕秉,郑劲,汪德华,等.特高压直流换流变压器的研制[J].高电压技术,2010,36(1):255-264.ZHANG Yanbing, ZHENG Jin, WANG Dehua, et al. Development ofUHVDCconvertertransformer[J].HighVoltageEngineering,2010,36(1):255-264.
[14]吴哲.大型换流变压器的电场分析与绝缘结构改进的研究[D].沈阳:沈阳工业大学,2013.WU Zhe. Electric field analysis and the research of insulation structureimprovement of the large converter transformers[D]. Shenyang, China:Shenyang University of Technology, 2013.
[15]LIJ,HEZ,GRZYBOWSKIS.Electricalaginglifetimemodelofoil-impregnated paper under pulsating DC voltage influenced by tem-perature[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2013, 20(6):1992-1997.
[16]SUN P, SIMA W, YANG M, et al. Influence of thermal aging on thebreakdowncharacteristicsoftransformeroilimpregnatedpaper[J].IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(6):3373-3381.
[17]王永红.换流变压器油纸绝缘击穿特性[D].哈尔滨:哈尔滨理工大学,2013.WANGYonghong.Breakdowncharacteristicsofoilandpressboardinsulation in converter transformer[D]. Harbin, China:Harbin Univer-sity of Science and Technology, 2013.
[18]LUNDGAARDLE,HANSENW,LINHJELLD.Agingofoil-impregnated paper in power transformers[J]. IEEE Transactions onPower Delivery, 2004, 19(1):230-239.
[19]FERNáNDEZ I, DELGADO F, ORTIZ F, et al. Thermal degradationassessment of Kraft paper in power transformers insulated with naturalesters[J]. Applied Thermal Engineering,2016, 104:129-138.
[20]张漪,马书杰,于会民.国内外矿型变压器油产品标准及产品性能分析[J].润滑油,2006,7(4):43-45.ZHANG Qi, MA Shujie, YU Huimin. Product standards and perfor-manceanalysisofmineraltransformeroilsathomeandabroad[J].Lubricating Oil, 2006, 7(4):43-45.
[21]马书杰,张玲俊,于会民,等.超高压交直流通用变压器油的开发[J].润滑油,2003,18(增刊1):48-56.MA Shujie, ZHANG Lingjun, YU Huimin, et al. The Development ofultra-high voltage AC/DC general purpose transformer oils[J]. Lubri-cating Oil, 2003, 18(Supplement 1):48-56.
[22]李峻峰,张静,何军,等.超高压直流输电换流变绝缘油[J].石油科技论坛,2014,33(1):66-68.LI Junfeng, ZHANG Jing, HE Jun, et al. Ultra-high voltage convertertransformer insulting oil[J]. Oil Forum, 2014, 33(1):66-68.
[23]周利军,李先浪,段宗超,等.纤维素老化对油纸绝缘水分扩散特性的影响机制[J].中国电机工程学报,2014,34(21):3541-3547.ZHOU Lijun, LI Xianlang, DUAN Zongchao, et al. Influence of cel-luloseagingoncharacteristicsofmoisturediffusioninoil-paperinsulation[J]. Proceedings of the CSEE, 2014, 34(21):3541-3547.
[24]唐超,廖瑞金,黄飞龙,等.电力变压器绝缘纸热老化的击穿电压特性[J].电工技术学报,2010,25(11):1-8.TANGChao,LIAORuijin,HUANGFeilong,etal.Thebreakdownvoltage of power transformer insulation paper after thermal aging[J].Transations of China Electrotechnical Society, 2010, 25(11):1-8.
[25]LIH,ZHONGL,YUQ,etal.Theresistivityofoilandoil-impregnated pressboard varies with temperature and electric fieldstrength[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2014, 21(4):1851-1856.
[26]王健一,李金忠,张书琦,等.以天然气为原料的气制变压器油的典型性能分析[J].高电压技术,2016,42(9):2974-2979.WANG Jianyi, LI Jinzhong, ZHANG Shuqi, et al. Typical propertiesanalysis of gas-to-liquid transformer oil with natural gas as raw mate-rial[J]. High Voltage Engineering, 2016, 42(9):2974-2979.
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