±1100 kV特高压阀厅金具表面电场计算及起晕校核
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摘要
为了校核±1 100 kV换流站阀厅金具的起晕状态,以某±800 kV换流站阀厅工程图和某±1 100 kV换流站阀厅初始设计方案为基础,建立阀厅3D全模型;通过瞬时电位加载法求得阀厅模型的整体电场分布,并采用子模型法对局部电场进行精确求解;根据计算结果,结合Peek公式及现有的试验数据,对管形和球形金具进行起晕校核,并对最容易起晕的金具进行优化设计。计算结果表明,本阀厅内的金具在电晕控制方面,具有一定的安全裕度;换流变D侧C相下部套管均球形压装置,最容易起晕,建议改为双环均压装置。研究成果可为在建的±1 100 kV输电工程提供指导意见。
To check corona inception state of the fittings in ±1 100 kV UHVDC converter station valve hall,a 3D model of the fittings is built on the basis of the engineering drawing of a ±800 kV converter station valve hall and the initial design of a ± 1 100 kV converter station valve hall. The whole electric field distribution is obtained by using the instantaneous potential loading method of electrostatic field, and the submodeling method is employed to achieve precision solution of local electric field. According to the obtained result, the corona state of tube and spherical fittings are checked by means of peek formulation and the experimental data,and the corona-sensitive fittings are optimized. The calculated results indicate that the fittings in this valve hall have certain safety margin,and the spherical equalizing fittings for the bushing below phase C on the D side of converter transformer is most possible to induce corona,so it is suggested to change the fittings into double-ring type.
To check corona inception state of the fittings in ±1 100 kV UHVDC converter station valve hall,a 3D model of the fittings is built on the basis of the engineering drawing of a ±800 kV converter station valve hall and the initial design of a ± 1 100 kV converter station valve hall. The whole electric field distribution is obtained by using the instantaneous potential loading method of electrostatic field, and the submodeling method is employed to achieve precision solution of local electric field. According to the obtained result, the corona state of tube and spherical fittings are checked by means of peek formulation and the experimental data,and the corona-sensitive fittings are optimized. The calculated results indicate that the fittings in this valve hall have certain safety margin,and the spherical equalizing fittings for the bushing below phase C on the D side of converter transformer is most possible to induce corona,so it is suggested to change the fittings into double-ring type.
引文
[1]绝缘配合:应用指南IEC 60071:1996[S].1996.Insulation coordination:Application guide:IEC 60071:1996[S].1996
[2]赵畹君.高压直流输电工程技术[M].北京:中国电力出版社,2004:302-303.ZHAO Wanjun.High voltage DC transmission project technology[M].Beijing:China Electric Power Press,2004:302-303.
[3]刘士利,魏晓光,曹均正,等.±1 100 kV特高压直流换流阀冲击电压试验能力研究[J].中国电机工程学报,2013,33(28):161-167.LIU Shili,WEI Xiaoguang,CAO Junzheng,et al.Study on the impulse test capability of 1 100 kVUHVDC converter valve[J].Proceedings of the CSEE,2013,33(28):161-167.
[4]齐磊,王星星,李超,等.±1 100 kV特高压直流换流阀绝缘型式试验下的电场仿真及优化[J].高电压技术,2015,41(4):1262-1271.QI Lei,WANG Xingxing,LI Chao,et al.Electric field simulation and optimization of±1 100 kV HVDC converter valve in insulaion type test[J].High Voltage Engineering,2015,41(4):1262-1271.
[5]张学成,檀金华,牛万宇,等.±1 100 kV直流输电工程换流变压器阀侧套管的设计[J].高电压技术,2012,38(2):393-399.ZHANG Xuecheng,TAN Jinhua,NIU Wanyu,et al.bushings deignof converter transformer’s valve side of UHVDC transmission project[J].High Voltage Engineering,2012,38(2):393-399.
[6]孙优良,李文平.±1 100 kV特高压换流变压器的主绝缘结构[J].电力建设,2012,33(12):87-90.SUN Youliang,LI Wenping.Main insulation structure of±1 100 kV UHV converter transformer[J].Electric Power Construction,2012,33(12):87-90.
[7]周浩,王东举.±1 100 kV特高压直流换流站过电压保护和绝缘配合[J].电网技术,2012,36(9):1-8.ZHOU Hao,WANG Dongju.Overvoltage protection and insulation coordination for±1 100 kV UHVDCconverter station[J].Power System Technology,2012,36(9):1-8.
[8]邓旭,王东举,沈扬,等.±1 100 kV特高压换流站直流操作过电压研究[J].电力自动化设备,2014,34(1):141-147.DENG Xu,WANG Dongju,SHEN Yang,et al.Switching overcoltage of±1 100 kV UHVDC converter station[J].Electric Power Automation Equipment,2014,34(1):141-147.
[9]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 andshielding fittings inside±1 100 kV ultra-high voltage converter valve hall[J].High Voltage Engineering,2015,41(11):3728-3736.
[10]丁永福,王祖力,张燕秉,等.基于区域化剖分技术的特高压直流换流站阀厅电场求解方法[J].高压电器,2015,39(3):12.DING Yongfu,WANG Zuli,ZHANG Yanbing,et al.Electric field calculation method for UHVDC converter valve hall based on regionalization meshing tech-9220186nique[J].High Voltage Apparatus,2015,39(3):12.
[11]阮江军,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 Jiangjun,ZHAN Ting,DU Zhiye,et al.Numerical solution of surface field in±800 kV UHVDC converter station valve hall of electric power fittings[J].High Voltage Engineering,2013,39(12):2916-2923.
[12]胡蓉,金硕.±500 kV换流站四重阀阀厅金具电场计算与分析[J].高压电器,2014,50(10):49-55.HU Rong,JIN Shuo.Electric field computation and analysis of fittings in quadruple valve hall of±500 kVHVDC converter station[J].High Voltage Engineering,2014,50(10):49-55.
[13]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.Numerical 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.
[14]王栋,阮江军,杜志叶,等.±500 kV直流输电系统换流站阀厅内金具表面电场数值求解[J].高电压技术,2011,37(2):404-410.WANG Dong,RUAN Jiangjun,DU Zhiye,et al.Numerical solution of the surface electric field of electric power fittings in±500 kV DC converter station valve hall[J].High Voltage Engineering,2011,37(2):404-410.
[15]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 calculationof fittings inside±800 kVvalve hall using electrostatic fieldinstantaneous load method[J].High Voltage Engineering,2014,40(6):1809-1815.
[16]王栋,阮江军,杜志叶,等.直流换流站阀厅内部场域电位和电场强度子模型法数值求解[J].电网技术,2011,35(9):158-163.WANG Dong,RUAN Jiangjun,DU Zhiye,et al.Numerical solution of potential and electric field intensity in field domain of valve hall of DC converter station by sub-model method[J].Power System Technology,2011,35(9):158-163.
[17]田冀焕,周远翔,郭绍伟,等.直流换流站阀厅内三维电场的分布式并行计算[J].高电压技术,2010,36(5):(100)5461205-1210.TIAN Jihuan,ZHOU Yuanxiang,GUO Shaowei,et al.Distributed parallel computation of the 3D electric field in the HVDC converter valve hall[J].High Voltage Engineering,2010,36(5):1205-1210.
[18]杜志叶,阮江军,詹婷,等.±660 kV阀厅金具电场分布计算及优化研究[D].武汉:武汉大学,2012.DU Zhiye,RUAN Jiangjun,ZHAN Ting,et al.Research on the calculation and optimization of the surface electric field of electric power fittings in±660 kVvalve hall[D].Wuhan:Wuhan University,2012.
[19]韩少卫.高压直流输电线路电晕起始电压及起始场强研究[D].保定:华北电力大学,2008.(92)HAN Shaowei.The study of corona inception voltage and inception electric field of HVDC transmission lines[D].Baoding:North China Electric Power University,2008
[20]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 the surface electric field and checking of the corona onset field intensityonthe fittings inside UHVDC valve hall[J].Electric Power,2014,47(10):19-23.
[2]赵畹君.高压直流输电工程技术[M].北京:中国电力出版社,2004:302-303.ZHAO Wanjun.High voltage DC transmission project technology[M].Beijing:China Electric Power Press,2004:302-303.
[3]刘士利,魏晓光,曹均正,等.±1 100 kV特高压直流换流阀冲击电压试验能力研究[J].中国电机工程学报,2013,33(28):161-167.LIU Shili,WEI Xiaoguang,CAO Junzheng,et al.Study on the impulse test capability of 1 100 kVUHVDC converter valve[J].Proceedings of the CSEE,2013,33(28):161-167.
[4]齐磊,王星星,李超,等.±1 100 kV特高压直流换流阀绝缘型式试验下的电场仿真及优化[J].高电压技术,2015,41(4):1262-1271.QI Lei,WANG Xingxing,LI Chao,et al.Electric field simulation and optimization of±1 100 kV HVDC converter valve in insulaion type test[J].High Voltage Engineering,2015,41(4):1262-1271.
[5]张学成,檀金华,牛万宇,等.±1 100 kV直流输电工程换流变压器阀侧套管的设计[J].高电压技术,2012,38(2):393-399.ZHANG Xuecheng,TAN Jinhua,NIU Wanyu,et al.bushings deignof converter transformer’s valve side of UHVDC transmission project[J].High Voltage Engineering,2012,38(2):393-399.
[6]孙优良,李文平.±1 100 kV特高压换流变压器的主绝缘结构[J].电力建设,2012,33(12):87-90.SUN Youliang,LI Wenping.Main insulation structure of±1 100 kV UHV converter transformer[J].Electric Power Construction,2012,33(12):87-90.
[7]周浩,王东举.±1 100 kV特高压直流换流站过电压保护和绝缘配合[J].电网技术,2012,36(9):1-8.ZHOU Hao,WANG Dongju.Overvoltage protection and insulation coordination for±1 100 kV UHVDCconverter station[J].Power System Technology,2012,36(9):1-8.
[8]邓旭,王东举,沈扬,等.±1 100 kV特高压换流站直流操作过电压研究[J].电力自动化设备,2014,34(1):141-147.DENG Xu,WANG Dongju,SHEN Yang,et al.Switching overcoltage of±1 100 kV UHVDC converter station[J].Electric Power Automation Equipment,2014,34(1):141-147.
[9]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 andshielding fittings inside±1 100 kV ultra-high voltage converter valve hall[J].High Voltage Engineering,2015,41(11):3728-3736.
[10]丁永福,王祖力,张燕秉,等.基于区域化剖分技术的特高压直流换流站阀厅电场求解方法[J].高压电器,2015,39(3):12.DING Yongfu,WANG Zuli,ZHANG Yanbing,et al.Electric field calculation method for UHVDC converter valve hall based on regionalization meshing tech-9220186nique[J].High Voltage Apparatus,2015,39(3):12.
[11]阮江军,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 Jiangjun,ZHAN Ting,DU Zhiye,et al.Numerical solution of surface field in±800 kV UHVDC converter station valve hall of electric power fittings[J].High Voltage Engineering,2013,39(12):2916-2923.
[12]胡蓉,金硕.±500 kV换流站四重阀阀厅金具电场计算与分析[J].高压电器,2014,50(10):49-55.HU Rong,JIN Shuo.Electric field computation and analysis of fittings in quadruple valve hall of±500 kVHVDC converter station[J].High Voltage Engineering,2014,50(10):49-55.
[13]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.Numerical 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.
[14]王栋,阮江军,杜志叶,等.±500 kV直流输电系统换流站阀厅内金具表面电场数值求解[J].高电压技术,2011,37(2):404-410.WANG Dong,RUAN Jiangjun,DU Zhiye,et al.Numerical solution of the surface electric field of electric power fittings in±500 kV DC converter station valve hall[J].High Voltage Engineering,2011,37(2):404-410.
[15]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 calculationof fittings inside±800 kVvalve hall using electrostatic fieldinstantaneous load method[J].High Voltage Engineering,2014,40(6):1809-1815.
[16]王栋,阮江军,杜志叶,等.直流换流站阀厅内部场域电位和电场强度子模型法数值求解[J].电网技术,2011,35(9):158-163.WANG Dong,RUAN Jiangjun,DU Zhiye,et al.Numerical solution of potential and electric field intensity in field domain of valve hall of DC converter station by sub-model method[J].Power System Technology,2011,35(9):158-163.
[17]田冀焕,周远翔,郭绍伟,等.直流换流站阀厅内三维电场的分布式并行计算[J].高电压技术,2010,36(5):(100)5461205-1210.TIAN Jihuan,ZHOU Yuanxiang,GUO Shaowei,et al.Distributed parallel computation of the 3D electric field in the HVDC converter valve hall[J].High Voltage Engineering,2010,36(5):1205-1210.
[18]杜志叶,阮江军,詹婷,等.±660 kV阀厅金具电场分布计算及优化研究[D].武汉:武汉大学,2012.DU Zhiye,RUAN Jiangjun,ZHAN Ting,et al.Research on the calculation and optimization of the surface electric field of electric power fittings in±660 kVvalve hall[D].Wuhan:Wuhan University,2012.
[19]韩少卫.高压直流输电线路电晕起始电压及起始场强研究[D].保定:华北电力大学,2008.(92)HAN Shaowei.The study of corona inception voltage and inception electric field of HVDC transmission lines[D].Baoding:North China Electric Power University,2008
[20]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 the surface electric field and checking of the corona onset field intensityonthe fittings inside UHVDC valve hall[J].Electric Power,2014,47(10):19-23.