Abstract：The pattern called UHVDC hierarchical connection to AC grid is a urgent topic in the future, and the calculation for surface electric field intensity on valve hall fittings will be of great guiding significance for the design of the converter station. For this reason, a full-size model for low voltage valve hall of ±800kV UHVDC receiving end in hierarchical connection was set up, and voltages on some key parts was obtained. The surface electric field intensity on typical fittings in low voltage valve hall was determined according to the voltage distributions. On this basis, a practicable method for ±800kV valve hall fittings design was proposed, in which the fillet radius of D side B phase arrester grading ring increased to the right value according to the curve that revealed the varying rules between the maximal surface electric field intensity and the fillet radius. As a result, the tube diameter of 400kV equalizing ring could increase to 90mm and other parts remained unchanged. The calculation results provided a data support for UHVDC hierarchical connection engineering design and construction.
刘士利, 王洋, 张力丹, 拾杨. ±800kV特高压直流受端分层接入方式下低端阀厅金具结构设计[J]. 电工技术学报, 2017, 32(14): 238-245.
Liu Shili, Wang Yang, Zhang Lidan, Shi Yang. Structure Design of ±800kV UHVDC Receiving End Low Voltage Valve Hall Fittings for Hierarchical Connection. Transactions of China Electrotechnical Society, 2017, 32(14): 238-245.
[1] 赵婉君. 高压直流输电工程技术[M]. 北京: 中国电力出版社, 2011. [2] 孙海峰, 刘磊, 崔翔, 等. 高压直流换流站换流系统宽频建模研究[J]. 中国电机工程学报, 2009, 29(12): 24-29. Sun Haifeng, Liu Lei, Cui Xiang, et al. Wide-band modeling of converter systems in HVDC converter stations[J]. Proceedings of the CSEE, 2009, 29(12): 24-29. [3] 刘振亚, 秦晓辉, 赵良, 等. 特高压直流分层接入方式在多馈入直流电网的应用研究[J]. 中国电机工程学报, 2013, 33(10): 1-7. Liu Zhenya, Qin Xiaohui, Zhao Liang, et al. Study on the application of UHVDC hierarchical connection mode to multi-infeed HVDC system[J]. Proceedings of the CSEE, 2013, 33(10): 1-7. [4] 李少华, 王秀丽, 张望, 等. 特高压直流分层接入交流电网方式下直流控制系统设计[J]. 中国电机工程学报, 2015, 35(10): 2409-2416. Li Shaohua, Wang Xiuli, Zhang Wang, et al. Control system design for UHVDC hierarchical connection to AC grid[J]. Proceedings of the CSEE, 2015, 35(10): 2409-2416. [5] 郭龙, 刘崇茹, 贠飞龙, 等. ±1100kV直流系统分层接入方式下的功率协调控制[J]. 电力系统自动化, 2015, 39(11): 24-30. Guo Long, Liu Chongru, Yun Feilong, et al. Power coordination control of ±1100kV UHVDC system with hierarchical connection mode[J]. Automation of Electric Power System, 2015, 39(11): 24-30. [6] 吴彦维, 李晔, 陈大鹏, 等. 10000MW特高压直流工程受端分层接入交流电网方式下直流控制系统研究[J]. 电力系统保护与控制, 2015, 43(18): 108-113. Wu Yanwei, Li Ye, Chen Dapeng, et al. Research on control system for 10000 MW UHVDC station B hierarchical connection to AC grid[J]. Power System Protection and Control, 2015, 43(18): 108-113. [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. ±1100kV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 ±1100 kV ultra-high voltage converter valve hall[J]. High Voltage Engineering, 2015, 41(11): 3728-3736. [9] 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): 1205-1210. 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. [10] 杜志叶, 朱琳, 阮江军, 等. 基于瞬时电位加载法的±800kV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. [11] 王栋, 阮江军, 杜志叶, 等. 基于三维自适应有限元的阀厅全模型电场分布并行计算[J]. 现代电力, 2014, 31(6): 81-85. Wang Dong, Ruan Jiangjun, Du Zhiye, et al. Parallel computation of electric field distribution for full model of valve hall based on 3D adaptive finite element method[J]. Modern Electric Power, 2014, 31(6): 81-85. [12] 金硕, 甘艳, 阮江军, 等. 特高压直流输电系统阀厅金具表面电场精细求解[J]. 高电压技术, 2015, 41(4): 1299-1305. Jin Shuo, Gan Yan, Ruan Jiangjun, 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. [13] 刘士利, 魏晓光, 曹均正, 等. 应用混合权函数边界元法的特高压换流阀屏蔽罩表面电场计算[J]. 中国电机工程学报, 2013, 33(25): 180-186. Liu Shili, Wei Xiaoguang, Cao Junzheng, et al. UHVDC converter valve shielding case surface electric field calculation using hybrid-weight- function boundary element method[J]. Proceedings of the CSEE, 2013, 33(25): 180-186. [14] 刘士利, 王泽忠, 孙超. 应用伽辽金边界元法的直流换流站屏蔽罩表面场强计算[J]. 电网技术, 2011, 35(5): 223-227. Liu Shili, Wang Zezhong, Sun Chao. Surface electric field intensity calculation of shielding case for valve tower of DC converter station with Galerkin boundary element method[J]. Power System Techno- logy, 2011, 35(5): 223-227. [15] 黄道春, 阮江军, 刘守豹. 特高压交流复合绝缘子电位和均压环表面电场分布计算[J]. 高电压技术, 2010, 36(6): 1442-1447. Huang Daochun, Ruan Jiangjun, Liu Shoubao. Potential distribution along UHV AC transmission line composite insulator and electric field distribution on the surface of grading ring[J]. High Voltage Engineering, 2010, 36(6): 1442-1447. [16] 王泽忠, 李亚莎, 邓春华. 基于球坐标的三维静电场曲边边界元方法[J]. 电工技术学报, 2007, 22(4): 33-36. Wang Zezhong, Li Yasha, Deng Chunhua. Curve quadrangular BEM in 3-D electrostatic fields based on spherical systems[J]. Transactions of China Electrotechnical Society, 2007, 22(4): 33-36. [17] 李亚莎, 王泽忠. 基于柱坐标的三维静电场曲边边界元方法[J]. 高电压技术, 2007, 33(1): 132-134. Li Yasha, Wang Zezhong. Curve quadrangular BEM in 3-D electrostatic fields based on cylinder coordinate transforms[J]. High Voltage Engineering, 2007, 33(1): 132-134. [18] 刘士利. 改进的边界元法及其在电场计算中的应用 . 北京: 华北电力大学, 2011. [19] 刘士利, 王泽忠, 孙静. HVDC 换流系统屏蔽罩寄生电容提取研究[J]. 电工技术学报, 2011, 26(2): 201-206. Liu Shili, Wang Zezhong, Sun Jing. Extraction of parasitic capacitance of shield in HVDC converter stations[J]. Transactions of China Electrotechnical Society, 2011, 26(2): 201-206. [20] 刘士利, 王泽忠, 孙静. 基于线-面模型的边界元法计算特高压交流变电站设备附近工频电场[J]. 电工技术学报, 2011, 26(3): 162-167. Liu Shili, Wang Zezhong, Sun Jing. Calculation of power frequency electric field near equipments in UHV substations with BEM based on line-area models[J]. Transactions of China Electrotechnical Society, 2011, 26(3): 162-167. [21] Zhang Bo, He Jinliang, Cui Xiang, et al. Electric field calculation for HV insulators on the head of transmission tower by coupling CSM with BEM[J]. IEEE Transactions on Magnetics, 2006, 42(4): 543- 546. [22] 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. [23] 阮江军, 詹婷, 杜志叶, 等. ±800kV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 electric power fittings about surface field in ±800kV UHVDC converter station valve hall[J]. High Voltage Engineering, 2013, 39(12): 2916-2923. [24] 王栋, 阮江军, 杜志叶, 等. ±660kV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 ±660kV DC converter station valve hall[J]. High Voltage Engineering, 2011, 37(10): 2594-2600. [25] 王栋, 阮江军, 杜志叶, 等. ±500kV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. NumericaI solution of the surface electric field of electric power fittings in ±500kV DC converter station valve hall[J]. High Voltage Engineering, 2011, 37(2): 404-410. [26] 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 intensity on the fittings inside UHVDC valve hall[J]. Electric Power, 2014, 47(10): 19-23. [27] 邱志斌, 阮江军, 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): 81-89. Qiu Zhibin, Ruan Jiangjun, 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): 81-89. 28 （编辑 郭丽军）
2017, Vol. 32 
