±800kV特高压换流站阀厅金具防晕设计尺寸研究
|
摘要
起晕场强是阀厅金具电晕控制的重要依据,针对±800 kV特高压换流站阀厅金具防晕设计裕度过大问题,在海拔高度分别为50 m和4300 m的试验室开展了管母线和屏蔽球的起晕电压试验。利用起晕电压试验、Peek公式和Ansys三维电场仿真计算结果,给出了±800 kV阀厅不同类型金具的防晕最小设计尺寸,并在此基础上提出了阀厅金具表面场强控制建议。建议±800 kV阀厅管形金具等效管径不小于150 mm、球形金具等效球径不小于800 mm、边缘倒角曲率半径不小于30 mm。提出±800 kV阀厅金具场强控制原则为:等效直径大于200 mm的管形金具、近似圆柱体或球形金具其起晕场强控制值不大于12 kV/cm,等效直径不大于200 mm的管形金具或近似圆柱体金具其起晕场强控制值不大于18 kV/cm。研究成果为±800 kV阀厅金具的防晕优化设计提供了一定的参考依据,为后续阀厅金具表面场强控制标准制订提供了技术支撑。
Corona onset field strength is one of the important parameters for corona control of fittings in converter station valve hall,considering the over-adequacy problem of anti-corona design of fittings in ±800 kV UHV DC valve hall,the corona onset voltage tests of tube bus and shielding balls are carried out in labs with altitude of 50 m and 4 300 m.Based on the results of corona onset voltage tests,Peek formula and Ansys 3D electric field simulation calculation,the minimum anti-corona design sizes of different fittings are obtained,the suggestions for the surface electric field control principles of valve hall fittings are proposed.It is recommended that the equivalent pipe diameter of tubular fittings shall not be less than 150 mm,the equivalent ball diameter of the shielding ball fittings shall not be less than 800 mm,and the radius of chamfered edge curvature shall not be less than 30 mm.In accordance with the field strength control principle of no more than 12 kV/cm when the equivalent diameter of valve hall fitting is greater than 200 mm and no more than 18 kV/cm when the equivalent diameter is less than 200 mm.The research results provide a reference for anti-corona optimization design in ±800 kV valve hall of electric power fittings,and also provide technical support for developing the surface field strength control standard.
Corona onset field strength is one of the important parameters for corona control of fittings in converter station valve hall,considering the over-adequacy problem of anti-corona design of fittings in ±800 kV UHV DC valve hall,the corona onset voltage tests of tube bus and shielding balls are carried out in labs with altitude of 50 m and 4 300 m.Based on the results of corona onset voltage tests,Peek formula and Ansys 3D electric field simulation calculation,the minimum anti-corona design sizes of different fittings are obtained,the suggestions for the surface electric field control principles of valve hall fittings are proposed.It is recommended that the equivalent pipe diameter of tubular fittings shall not be less than 150 mm,the equivalent ball diameter of the shielding ball fittings shall not be less than 800 mm,and the radius of chamfered edge curvature shall not be less than 30 mm.In accordance with the field strength control principle of no more than 12 kV/cm when the equivalent diameter of valve hall fitting is greater than 200 mm and no more than 18 kV/cm when the equivalent diameter is less than 200 mm.The research results provide a reference for anti-corona optimization design in ±800 kV valve hall of electric power fittings,and also provide technical support for developing the surface field strength control standard.
引文
[1]邱志斌,阮志军,黄道春,等.直流导线和阀厅金具的电晕起始电压预测[J].电工技术学报,2016,31(12):80-89.QIU Zhibin,RUAN Zhijun,HUANG Daochun,et al.Prediction on corona onset voltage of DC conductors and valve hall fittings[J].Transactions of China Electrotechnical Society,2016,31(12):80-89.
[2]李敏,刘磊,余占清,等.2 km海拔下直流线路金具起晕场强预测修正方法[J].南方电网技术,2016,10(9):55-60.LI Min,LIU Lei,YU Zhanqing,et al.Prediction method of corona inception field intensity for HVDC line fittings at2 km altitude[J].Southern power system technology,2016,10(9):55-60.
[3]金硕,甘艳,阮志军,等.特高压直流输电系统阀厅金具表面场强精细求解[J].高电压技术,2015,41(4):1299-1305.JIN Shuo,GAN Yan,RUAN Zhijun,et al.Accurate calculation method of electric field on the surface of converter valve fittings in UHVDC system[J].High Voltage Engineering,2015,41(4):1299-1305.
[4]杜志叶,朱琳,阮江军,等.基于瞬时电位加载法的±800 kV特高压阀厅金具表面电场求解[J].高电压技术,2014,40(6):1809-1815.DU Zhiye,ZHU Lin,RUAN Jiangjun,et al.Surface electric field calculation of fittings inside±800 kV valve hall using electrostatic field instantaneous load method[J].High Voltage Engineering,2014,40(6):1809-1815.
[5]刘泽洪,丁永福,王祖力,等.特高压阀厅金具表面电场计算及起晕校核[J].中国电力,2014,47(10):19-23.LIU Zehong,DING Yongfu,WANG Zuli,et al.Calculation of UHVDC transmission line lightning disturbance based on morphology[J].Electric Power,2014,47(10):19-23.
[6]阮志军,詹婷,杜志叶,等.±800 kV特高压直流换流站阀厅金具表面电场计算[J].高电压技术,2013,39(12):2916-2923.RUAN Zhijun,ZHAN Ting,DU Zhiye,et al.Numeric solution of surface electric field in±800 kV UHVDCconverter station valve hall of electric power fittings[J].High Voltage Engineering,2013,39(12):2916-2923.
[7]姬大潜,刘泽洪,邓桃,等.特高压直流输电系统稳态运行时高端阀厅内部的电场分析[J].高电压技术,2013,39(12):3000-3008.JI Daqian,LIU Zehong,DENG Tao,et al.Analysis of overall electric field in high-voltage valve hall end on steady state of UHVDC system[J].High Voltage Engineering,2013,39(12):3000-3008.
[8]王加龙,彭宗仁,刘鹏,等.±1 100 kV特高压换流站阀厅均压屏蔽金具表面电场分析[J].高电压技术,2015,41(11):3728-3736.WANG Jialong,PENG Zongren,LIU Peng,et al.Analysis of electric field on the surface of grading and shielding fittings inside±1 100 kV ultra-high voltage converter valve hall[J].High Voltage Engineering,2015,41(11):3728-3736.
[9]王栋,阮江军,杜志叶,等.±660 kV直流换流站阀厅内金具表面电场数值求解[J].高电压技术,2011,37(10):2594-2600.WANG Dong,RUAN Jiangjun,DU Zhiye,et al.Numeric solution of electric power fittings about surface electric field in±660 kV DC converter station valve hall[J].High Voltage Engineering,2011,37(10):2594-2600.
[10]范建斌,谷琛,李军,等.±800 kV典型直流设备电晕起始电压的海拔校正方法[J].中国电机工程学报,2008,28(25):8-13.FAN Jianbin,GU Chen,LI Jun,et al.Altitude correction method for corona onset voltage of±800 kV typical DCequipment[J].Proceedings of the CSEE,2008,28(25):8-13.
[11]范建斌,谷琛,殷禹,等.±800 kV管母线的电晕起始特性研究[J].中国电机工程学报,2008,28(22):47-52.FAN Jianbin,GU Chen,YIN Yu,et al.Research on corona onset performance of±800 kV busbar[J].Proceedings of the CSEE,2008,28(22):47-52.
[12]万保权,张小武,张广州,等.±800 kV云广线换流站母线电晕特性试验研究[J].高电压技术,2008,34(9):1788-1791.WAN Baoquan,ZHANG Xiaowu,ZHANF Guangzhou,et al.Study on busbar corona characteristic test of±800 kV Yunguang HVDC converter substation[J].High Voltage Engineering,2008,34(9):1788-1791.
[13]郭贤珊,郄鑫,曾静,等.±800 kV换流站通用设计研究与应用[J].电力建设,2014,35(10):36-42.GUO Xianshan,QIE Xin,ZENG Jing,et al.Research and application of general design for±800 kV converter station[J].Electric Power Construction,2014,35(10):36-42.
[14]张爱芳,常林晶,李俊辉,等.特高压直流换流站阀厅金具研制[J].机电工程技术,2015,44(7):159-163.ZHANG Aifang,CHANG Linjing,LI Junhui,et al.The design and manufacture of fittings in the UHVDC converter station valve hall[J].Mechanical&Electrical Engineering Technology,2015,44(7):159-163.
[15]杨俊超,何山,杨国华,等.±800 kV特高压直流换流站阀厅金具的电气设计特点[J].高压电器,2016,52(11):47-50.YANG Junchao,HE Shan,YANG Guohua,et al.Electrical design features of valve hall fittings in±800 kV UHVDCconverter station[J].High Voltage Apparatus,2014,35(10):36-42.
[16]丁永福,王祖力,张燕秉,等.±800 kV特高压直流换流站阀厅金具的结构特点[J].高压电器,2013,49(9):13-18.DING Yongfu,WANG Zuli,ZHANG Yanbing,et al.Design structure characteristics of valve hall fittings in the±800 kVHVDC converter station[J].High Voltage Apparatus,2013,49(9):13-18.
[17]王刚,张燕秉,常林晶,等.换流站阀厅屏蔽球结构研究[J].科学技术与工程,2015,15(4):229-233.WANG Gang,ZHANG Yanbing,CHANG Linjing,et al.The study for the structure of shield ball in valve hall of converter station[J].Science Technology and Engineering,2015,15(4):229-233.
[18]GIAO T N,JORDAN J B.Modes of corona discharge in air[J].IEEE Transaction on Power Apparatus and System,1968,87(5):1207-1215.
[19]严璋,朱德恒.高电压绝缘技术[M].北京:中国电力出版社,2015.YAN Zhang,ZHU Dehengi.High voltage insulation technology[M].Beijing:China Electric Power Press,2015.(1980-)
[2]李敏,刘磊,余占清,等.2 km海拔下直流线路金具起晕场强预测修正方法[J].南方电网技术,2016,10(9):55-60.LI Min,LIU Lei,YU Zhanqing,et al.Prediction method of corona inception field intensity for HVDC line fittings at2 km altitude[J].Southern power system technology,2016,10(9):55-60.
[3]金硕,甘艳,阮志军,等.特高压直流输电系统阀厅金具表面场强精细求解[J].高电压技术,2015,41(4):1299-1305.JIN Shuo,GAN Yan,RUAN Zhijun,et al.Accurate calculation method of electric field on the surface of converter valve fittings in UHVDC system[J].High Voltage Engineering,2015,41(4):1299-1305.
[4]杜志叶,朱琳,阮江军,等.基于瞬时电位加载法的±800 kV特高压阀厅金具表面电场求解[J].高电压技术,2014,40(6):1809-1815.DU Zhiye,ZHU Lin,RUAN Jiangjun,et al.Surface electric field calculation of fittings inside±800 kV valve hall using electrostatic field instantaneous load method[J].High Voltage Engineering,2014,40(6):1809-1815.
[5]刘泽洪,丁永福,王祖力,等.特高压阀厅金具表面电场计算及起晕校核[J].中国电力,2014,47(10):19-23.LIU Zehong,DING Yongfu,WANG Zuli,et al.Calculation of UHVDC transmission line lightning disturbance based on morphology[J].Electric Power,2014,47(10):19-23.
[6]阮志军,詹婷,杜志叶,等.±800 kV特高压直流换流站阀厅金具表面电场计算[J].高电压技术,2013,39(12):2916-2923.RUAN Zhijun,ZHAN Ting,DU Zhiye,et al.Numeric solution of surface electric field in±800 kV UHVDCconverter station valve hall of electric power fittings[J].High Voltage Engineering,2013,39(12):2916-2923.
[7]姬大潜,刘泽洪,邓桃,等.特高压直流输电系统稳态运行时高端阀厅内部的电场分析[J].高电压技术,2013,39(12):3000-3008.JI Daqian,LIU Zehong,DENG Tao,et al.Analysis of overall electric field in high-voltage valve hall end on steady state of UHVDC system[J].High Voltage Engineering,2013,39(12):3000-3008.
[8]王加龙,彭宗仁,刘鹏,等.±1 100 kV特高压换流站阀厅均压屏蔽金具表面电场分析[J].高电压技术,2015,41(11):3728-3736.WANG Jialong,PENG Zongren,LIU Peng,et al.Analysis of electric field on the surface of grading and shielding fittings inside±1 100 kV ultra-high voltage converter valve hall[J].High Voltage Engineering,2015,41(11):3728-3736.
[9]王栋,阮江军,杜志叶,等.±660 kV直流换流站阀厅内金具表面电场数值求解[J].高电压技术,2011,37(10):2594-2600.WANG Dong,RUAN Jiangjun,DU Zhiye,et al.Numeric solution of electric power fittings about surface electric field in±660 kV DC converter station valve hall[J].High Voltage Engineering,2011,37(10):2594-2600.
[10]范建斌,谷琛,李军,等.±800 kV典型直流设备电晕起始电压的海拔校正方法[J].中国电机工程学报,2008,28(25):8-13.FAN Jianbin,GU Chen,LI Jun,et al.Altitude correction method for corona onset voltage of±800 kV typical DCequipment[J].Proceedings of the CSEE,2008,28(25):8-13.
[11]范建斌,谷琛,殷禹,等.±800 kV管母线的电晕起始特性研究[J].中国电机工程学报,2008,28(22):47-52.FAN Jianbin,GU Chen,YIN Yu,et al.Research on corona onset performance of±800 kV busbar[J].Proceedings of the CSEE,2008,28(22):47-52.
[12]万保权,张小武,张广州,等.±800 kV云广线换流站母线电晕特性试验研究[J].高电压技术,2008,34(9):1788-1791.WAN Baoquan,ZHANG Xiaowu,ZHANF Guangzhou,et al.Study on busbar corona characteristic test of±800 kV Yunguang HVDC converter substation[J].High Voltage Engineering,2008,34(9):1788-1791.
[13]郭贤珊,郄鑫,曾静,等.±800 kV换流站通用设计研究与应用[J].电力建设,2014,35(10):36-42.GUO Xianshan,QIE Xin,ZENG Jing,et al.Research and application of general design for±800 kV converter station[J].Electric Power Construction,2014,35(10):36-42.
[14]张爱芳,常林晶,李俊辉,等.特高压直流换流站阀厅金具研制[J].机电工程技术,2015,44(7):159-163.ZHANG Aifang,CHANG Linjing,LI Junhui,et al.The design and manufacture of fittings in the UHVDC converter station valve hall[J].Mechanical&Electrical Engineering Technology,2015,44(7):159-163.
[15]杨俊超,何山,杨国华,等.±800 kV特高压直流换流站阀厅金具的电气设计特点[J].高压电器,2016,52(11):47-50.YANG Junchao,HE Shan,YANG Guohua,et al.Electrical design features of valve hall fittings in±800 kV UHVDCconverter station[J].High Voltage Apparatus,2014,35(10):36-42.
[16]丁永福,王祖力,张燕秉,等.±800 kV特高压直流换流站阀厅金具的结构特点[J].高压电器,2013,49(9):13-18.DING Yongfu,WANG Zuli,ZHANG Yanbing,et al.Design structure characteristics of valve hall fittings in the±800 kVHVDC converter station[J].High Voltage Apparatus,2013,49(9):13-18.
[17]王刚,张燕秉,常林晶,等.换流站阀厅屏蔽球结构研究[J].科学技术与工程,2015,15(4):229-233.WANG Gang,ZHANG Yanbing,CHANG Linjing,et al.The study for the structure of shield ball in valve hall of converter station[J].Science Technology and Engineering,2015,15(4):229-233.
[18]GIAO T N,JORDAN J B.Modes of corona discharge in air[J].IEEE Transaction on Power Apparatus and System,1968,87(5):1207-1215.
[19]严璋,朱德恒.高电压绝缘技术[M].北京:中国电力出版社,2015.YAN Zhang,ZHU Dehengi.High voltage insulation technology[M].Beijing:China Electric Power Press,2015.(1980-)