Estimation Methods of DC Withstand Voltage Lifetime Model for Epoxy/Paper Composites
Cao Wen1, 2, Song Qianwen1, Shen Wei3, Lü Zepeng4, Zhu Yongcan1
1. School of Electronic Information Xi'an Polytechnic University Xi'an 710048 China; 2. School of Mechanical Engineering Northwestern Polytechnical University Xi'an 710072 China ; 3. State Grid Shanxi Electric Power Research Institute Xi'an 710054 China; 4. State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049 China
Abstract：The insulated withstanding voltage performance of epoxy/paper composites for dry-type bushing was studied in this paper. Firstly, modeling and simulations were made through Mote Carlo method to analyze the errors of parameter estimation under different parameter estimation methods, different sample sizes, non-censored withstanding test and Type-II censored withstanding test. It was suggested to use the experimental method of tail-end withstanding voltage and the weighted least squares method. Next, the long-term insulating properties, i.e. the withstanding voltage properties of epoxy/paper composites, were experimentally studied. The results show that the voltage withstanding test of epoxy/paper composites follows Weibull distribution and the established lifetime model of epoxy/paper composites can provide technical support for the insulation structural design of bushing.
曹雯, 宋倩文, 申巍, 吕泽鹏, 朱永灿. 环氧/纸复合材料直流耐压寿命模型的估计方法[J]. 电工技术学报, 2019, 34(18): 3750-3758.
Cao Wen, Song Qianwen, Shen Wei, Lü Zepeng, Zhu Yongcan. Estimation Methods of DC Withstand Voltage Lifetime Model for Epoxy/Paper Composites. Transactions of China Electrotechnical Society, 2019, 34(18): 3750-3758.
[1] 任想, 阮羚, 朱思瑞, 等. 环氧树脂浇注类绝缘管型母线的结构参数核算[J]. 电工技术学报, 2018, 33(增刊1): 234-240. Ren Xiang, Ruan Ling, Zhu Sirui, et al.Calculation of structural parameters of the resin-impregnated- paper insulated tubular busbar[J]. Transactions of China Electrotechnical Society, 2018, 33(S1): 234-240. [2] 蒋伟. 电量传感器灌封工艺及常见问题解决方案[J]. 电气技术, 2018, 19(10): 62-64. Jiang Wei.Sealing technology of electricity sensor and solution of common problems[J]. Electrical Engineering, 2018, 19(10): 62-64. [3] 王旗, 李喆, 尹毅. 微、纳米无机颗粒/环氧树脂复合材料击穿强度性能[J]. 电工技术学报, 2014, 29(12): 230-235. Wang Qi, Li Zhe, Yin Yi.The effect of micro and nano inorganic filler on the breakdown strength of epoxy resin[J]. Transactions of China Electro- technical Society, 2014, 29(12): 230-235. [4] Preetha P, Thomas M J.AC breakdown characteri- stics of epoxy nanocomposites[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2011, 18(5): 1526-1534. [5] 申巍, 柯春俊, 王红斌, 等. 直流高压干式套管的多参量诊断[J]. 高电压技术, 2012, 38(3): 616-622. Shen Wei, Ke Chunjun, Wang Hongbin, et al.Multiparameter diagnosis of HVDC bushing[J]. High Voltage Engineering, 2012, 38(3): 616-622. [6] 宁鑫, 彭宗仁, 冯骅, 等. 特高压直流干式套管用环氧及环氧/皱纹纸复合材料介电特性研究[J]. 中国电机工程学报, 2015, 35(4): 995-1001. Ning Xin, Peng Zongren, Feng Hua, et al.Dielectric properties of epoxy resin and epoxy/crepe paper composites used in the ultra high voltage current dry-type bushing[J]. Proceedings of the CSEE, 2015, 35(4): 995-1001. [7] 吴子剑, 王晨, 张明艳, 等. 环氧树脂纳米复合材料界面及其对电性能影响分析[J]. 电工技术学报, 2018, 33(16): 3897-3905. Wu Zijian, Wang Chen, Zhang Mingyan, et al.Interface of epoxy resin composites, and its influence on electrical performance[J]. Transactions of China Electrotechnical Society, 2018, 33(16): 3897-3905. [8] 黄炎光, 易鹭. 热老化对干式变压器环氧树脂介电性能的影响[J]. 绝缘材料, 2016, 49(9): 53-60. Huang Yanguang, Yi Lu.Effect of thermal ageing on dielectric property of epoxy resin for dry-type trans- former[J]. Insulating Materials, 2016, 49(9): 53-60. [9] 王有元, 刘玉, 王施又, 等. 电热老化对干式变压器中环氧树脂特性的影响[J]. 电工技术学报, 2018, 33(16): 3906-3916. Wang Youyuan, Liu Yu, Wang Shiyou, et al.The effect of electrothermal aging on the properties of epoxy resin in dry-type transformer[J]. Transactions of China Electrotechnical Society, 2018, 33(16): 3906-3916. [10] Cao Wen, Shen Wei, Wu Kai.Study on the properties of space charge and breakdown for epoxy-paper composites[J]. IEEJ Transactions on Electrical and Electronic Engineering, 2015, 10(4): 364-367. [11] 杨丽君, 黄加佳, 许佐明, 等. 高压交流套管的油纸绝缘热老化特性及寿命模型研究[J]. 电工技术学报, 2016, 31(5): 145-151. Yang Lijun, Huang Jiajia, Xu Zuoming, et al.Investigation on thermal aging characteristics and lifetime model of oil-paper insulation for HV AC bushing[J]. Transactions of China Electrotechnical society, 2016, 31(5): 145-151. [12] Cao Wen, Shen Wei, Wu Kai.An approach for economic assessment on oil-paper insulation diagnosis through accelerated aging experiments[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2014, 21(4): 1842-1850. [13] 程博. XLPE绝缘电缆可靠性与寿命预测算法研究[D]. 广州: 华南理工大学, 2014. [14] 刘伟杰. 高频电热应力下环氧树脂绝缘老化特性与寿命评佑[D]. 北京: 华北电力大学, 2015. [15] 陈家鼎, 李东风. 随机截尾情形下正态分布参数的最大似然估计[J]. 应用概率统计, 2011, 34(6): 962-975. Chen Jiading, Li Dongfeng.Maximum likelihood estimation of normal distribution parameters under random censoring[J]. Chinese Journal of Applied Probability and Statistics, 2011, 34(6): 962-975. [16] 麻晓敏, 张士杰, 胡丽琴, 等. 可靠性数据威布尔分析中秩评定算法改进研究[J]. 核科学与工程, 2007, 27(2): 86-92. Ma Xiaomin, Zhang Shijie, Hu Liqin, et al.An improved rank assessment method for Weibull analysis of reliability data[J]. Nuclear Science and Engineering, 2007, 27(2): 86-92. [17] IEEE/IEC62539-2007 Guide for the statistical analysis of electrical insulation breakdown data[S]. 2007. [18] 毕瑞峰, 张发玲. 加权最小二乘法线性回归模型参数的理论推导与计算实例[J]. 计量与测试技术, 2016, 43(2): 67-68. Bi Ruifeng, Zhang Faling.Theoretical derivation and calculation example of the parameters for weighted least square linear regression model[J]. Measurement and Testing Techniques, 2016, 43(2): 67-68. [19] 张详坡, 尚建忠, 陈循, 等. 三参数威布尔分布竞争失效场合变应力加速寿命试验统计分析[J]. 机械工程学报, 2014, 50(14): 42-49. Zhang Xiangpo, Shang Jianzhong, Chen Xun, et al.Statistical infuence of varying-stress accelerated life test with competing fail ures based on three- parameter Weibull distribution[J]. Journal of Mechanical Engineering, 2014, 50(14): 42-49. [20] Cao Wen, Shen Wei, He Baosheng, et al.Structural design for DC bushing core based on the material life[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2013, 20(1): 281-288. [21] 汪正江. 植物油纸绝缘多参量电老化特征及寿命模型[D]. 重庆: 重庆大学, 2015.
2019, Vol. 34 
