|
|
Design Optimization of Grading Ring for Electric Multiple Unit High Voltage Disconnector Based on FEM |
Lü Fangcheng1, Zhang Zhaohua1, Wang Fochi1,2 |
1.State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing 102206 China; 2.China Electric Power Research Institute Beijing 100192 China |
|
|
Abstract To control the maximal electric field strength of the electric multiple unit (EMU) high voltage disconnector insulator and fittings surface,the finite element software ANSYS is used to analyze the electric field distributions of EMU high voltage disconnector with/without the grading ring.Then the reasonable parameters of the grading ring are given considering that the electric field strength cannot exceed the corona inception level.The corona discharges of high voltage disconnector insulators with/without the grading ring are observed by ultraviolet imager.The result shows that:when the grading rings are configured at the high pressure end,the electric field distribution at the insulator surface can be effectively improved,the maximal electric strengths at the insulator and fittings surface are reduced,and it is favorable to prevent corona discharge and improve insulator operation reliability;by increasing the height and external diameter of the grading ring,the maximal electric strength at the insulator and fittings surface can be evidently improved,and the tube diameter of the grading ring notably impacts the surface maximal electric strength of the grading ring itself;the corona discharge the EMU high voltage disconnector insulator with grading ring is evidently weakened in the same text voltage.
|
Received: 10 June 2015
Published: 02 November 2016
|
|
|
|
|
[1] 周升.高速电力机车车顶用有机复合绝缘子的研究与开发[D].长沙:湖南大学,2004. [2] 吴广宁,杨坤松,高国强,等.电动车组车顶复合绝缘子内部间隙电场分析[J].高电压技术,2014,40(10):3252-3259. Wu Guangning,Yang Kunsong,Gao Guoqiang,et al.Analysis of the electric field through internal gap of electric multiple unit roof composite insulator[J].High Voltage Engineering,2014,40(10):3252-3259. [3] 黄道春,阮江军,刘佳,等.330 kV绝缘子串电压分布和屏蔽环位置的优化[J].高电压技术,2007,33(1):91-94. Huang Daochun,Ruan Jiangjun,Liu Jia,et al.Calculation of voltage distribution along insulator string of 330 kV transmission line and position optimization of grading ring[J].High Voltage Engineering,2007,33(1):91-94. [4] 杨杰,吉晓波,周国华,等.均压装置对复合绝缘子电气性能的影响[J].高电压技术,2004,30(2):24-25,50. Yang Jie,Ji Xiaobo,Zhou Guohua,et al.The influence of voltage grading fittings on electrical performance of composite insulators[J].High Voltage Engineering,2004,30(2):24-25,50. [5] 卞星明,张福增,王黎明,等.1000 kV 交流复合绝缘子均压环参数设计[J].高电压技术,2009,35(5):980-986. Bian Xingming,Zhang Fuzeng,Wang Liming,et al.Design of grading rings for 1000 kV AC composite insulator[J].High Voltage Engineering,2009,35(5):980-986. [6] 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):1442-1446. 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):1442-1446. [7] 黄玲,文习山,蓝磊,等.基于改进遗传算法的特高压绝缘子均压环优化[J].高电压技术,2009,35(2):218-224. Huang Ling,Wen Xishan,Lan Lei,et al.Optimization of grading rings for UHV composite insulator by the improved GA[J].High Voltage Engineering,2009,35(2):218-224. [8] 江汛,王仲弈.330kV带均压环的棒形悬式复合绝缘子电场有限元分析[J].高压电器,2004,40(3):215-217. Jiang Xun,Wang Zhongyi.Analysis of the electric field of 330 kV composite insulator with grading rings[J].High Voltage Apparatus,2004,40(3):215-217. [9] 张施令,胡伟,彭宗仁,等.采用有限元和粒子群算法优化特高压复合绝缘子均压环结构[J].高电压技术,2012,38(2):359-367. Zhang Shiling,Hu Wei,Peng Zongren,et al.Structural optimization of grading ring for ultra high voltage composite insulator by combining finite element method and particle swarm optimization algorithm[J].High Voltage Engineering,2012,38(2):359-367. [10]司马文霞,施健,袁涛,等.特高压复合绝缘子电场计算及基于神经网络遗传算法的均压环结构优化设计[J].高电压技术,2012,38(2):257-265. Sima Wenxia,Shi Jian,Yuan Tao,et al.Electric field calculation of ultra high voltage composite insulator and optimization design of corona ring structure based on neural network and genetic algorithm[J].High Voltage Engineering,2012,38(2):257-265. [11]黎卫国,郝艳捧,熊国锟,等.覆冰复合绝缘子电位分布有限元仿真[J].电工技术学报,2012,27(12):29-35. Li Weiguo,Hao Yanpeng,Xiong Guokun,et al.Simulation and analysis of potential distribution of iced composite insulator based on finite element method[J].Transactions of China Electrotechnical Society,2012,27(12):29-35. [12]王泽忠.简明电磁场数值计算[M].北京:机械工业出版社,2011:106-122. [13]倪光正,杨仕友,邱捷.工程电磁场数值计算[M].北京:机械出版社,2010. [14]关志成,刘敏,王黎明,等.±800 kV 直流复合绝缘子正方形耐张串均压环设计[J].高电压技术,2010,36(6):1423-1428. Guan Zhicheng,Liu Min,Wang Liming,et al.Design of grading rings for ±800 kV DC tension string with four composite insulators in rectangle form[J].High Voltage Engineering,2010,36(6):1423-1428. [15]Gerdin G,Lakdawala V,Basappa P.Computation of AC and DC electric field around a wet polluted insulator[C]//2002 Annual Repot Conference on Electrical Insulation and Dielectric Phenomena,Cancum,Mexico,2002:176-179. [16]吴光亚,王刚,蔡炜,等.±500 kV直流耐张复合绝缘子的电位分布特性[J].高电压技术,2006,32(9):132-135. Wu Guangya,Wang Gang,Cai Wei,et al.Research of potential distribution of ±500 kV composite insulator[J].High Voltage Engineering,2006,32(9):132-135. [17]司马文霞,杨庆,孙才新,等.基于有限元和神经网络方法对超高压合成绝缘子均压环结构优化研究[J].中国电机工程学报,2005,25(17):115-120. Sima Wenxia,Yang Qing,Sun Caixin,et al.Optimization of corona ring design for EHV composite insulation using finite element and neural network method[J].Proceedings of the CSEE,2005,25(17):115-120. [18]曹龙威.高压绝缘子电场计算与均压环参数优化[D].武汉:华中科技大学,2013.
|
|
|
|