高湿条件下基于凝露分布模型的导线电晕起始电压预测

doi:10.19595/j.cnki.1000-6753.tces.170111

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摘要湿度是影响导线电晕起始电压的重要因素,基于四热阻换热模型和分形理论建立适用于高湿度条件下导线的凝露分布模型,计算得到不同湿度和导线温度配合下导线表面凝露的尺寸和分布规律,计算结果与金相显微镜下凝露试验测量结果相差很小。通过有限元方法由凝露分布模型得出的参数计算得到凝露时导线表面的电场分布;代入导线电晕放电的光电离模型计算得到电晕起始电压的预测值。研究表明：相对湿度越高,导线温度与环境温度相差越大,电晕起始电压下降越明显,在相对湿度高于80%后,电晕起始电压趋于饱和。试验得到的不同凝露条件下导线的电晕起始电压和预测值的误差小于5%。因此,所提方法可应用于高湿度条件下导线电晕起始电压的预测。

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	胡琴
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关键词 ：凝露, 导线, 电晕起始电压, 凝露分布模型, 高湿度

Abstract：Humidity has a significant influence on the corona onset voltage of conductor.The presented paper constructs a condensation-distribution model based on quadri-thermal resistance heat transfer model and fractal theory under high humidity circumstance, and calculates the dimensions of the maximum dewdrop and the distribution regularities of dewdrop under various conductor temperature and humidity conditions, which are agree with the test results of metallographic microscope. The parameters derived from the condensation-distribution model are used to calculate the electric field intensity distribution of conductors, and input the results of electric field intensity distribution into a corona photoionization model to obtain the corresponding corona onset voltage.The higher of the humidity or the temperature differences between conductor and circumstance, the smaller of the corona onset voltage, and when the relative humidity reaches 80%, the corresponding corona inception voltage tends to saturate. Comparing the prediction results of corona onset voltage with experiments results, the errors are less than 5%. Therefore, the proposed method could be applied on the corona onset voltage prediction of conductors under high humidity circumstance.

Key words： Condensation conductor corona onset voltage condensation-distribution model high humidity

收稿日期: 2017-02-08 出版日期: 2018-04-12

PACS:

TM726

基金资助:国家电网重庆市电力公司科研项目（SGCQDK00PJJS1600049）和国家自然科学基金专项基金创新群体基金（51321063）资助

通讯作者: 何高辉男,1992年生,博士研究生,研究方向为复杂大气环境下输电线路电晕放电。E-mail：hegaohui@cqu.edu.cn

作者简介: 胡琴男,1981年生,博士,教授,研究方向为电气工程领域高电压与绝缘技术。E-mail：huqin@cqu.edu.cn

引用本文:

胡琴, 何高辉, 彭华东, 李永福, 舒立春. 高湿条件下基于凝露分布模型的导线电晕起始电压预测[J]. 电工技术学报, 2018, 33(7): 1634-1640. Hu Qin, He Gaohui, Peng Huadong, Li Yongfu, Shu Lichun. Prediction of Conductor Corona Onset Voltage Based on Condensation-Distribution Model under High Humidity Conditions. Transactions of China Electrotechnical Society, 2018, 33(7): 1634-1640.

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[1] 周顺武, 马悦, 宋瑶, 等. 中国东部地区冬季和夏季地面湿度空间分布特征的对比分析[J]. 气候与环境研究, 2015, 20(5):589-599.
Zhou Shunwu, Ma Yue, Song Yao, et al.Comparison between the spatial distribution of surface humidity in winter and summer over east China[J]. Climatic and Environmental Research, 2015, 20(5):589-599.
[2] 胡文超, 白虎志, 董安祥. 中国西部空中水汽分布结构特征[J]. 南京气象学院学报, 2005, 28(6):808-814.
Hu Wenchao, BaiHuzhi, Dong Anxiang. Distributive characters of water vapor in western China[J]. Journal of Nan Jing Institute of Meteorology, 2005, 28(6):808-814.
[3] 刘阳, 崔翔, 卢铁兵, 等. 湿度对绞线正极性电晕电流脉冲及其无线电干扰影响的实验[J]. 电工技术学报, 2015, 30(3):79-89.
Liu Yang, Cui Xiang, Lu Tiebing, et al.Experimental investigation of humidity impact on positive corona current pulse and its radio interference of stranded conductors[J]. Transactions of China Electrotechnical Society, 2015, 30(3):79-89.
[4] Abdelsalam M.Positive wire-to-plane coronas as influenced by atmospheric humidity[J]. IEEE Transactions on Industry Applications, 1985, 21(1):35-40.
[5] 王清亮, 张璐, 李舟, 等. 空气湿度对导线电晕起始电压的影响[J]. 电力建设, 2009, 30(8):38-41.
Wang Qingliang, Zhang Lu, Li Zhou, et al.Influence of humidity on conductor corona onset voltage[J]. Electric Power Construction, 2009, 30(8):38-41.
[6] 惠建峰, 关志成, 王黎明, 等. 正直流电晕特性随气压和湿度变化的研究[J]. 中国电机工程学报, 2007, 27(33):53-58.
HuiJianfeng, Guan Zhicheng, Wang Liming, et al. Research on variation of positive DC corona characteristics with air pressure and humidity[J]. Proceedings of the CSEE, 2007, 27(33):53-58.
[7] 卞星明, 惠建峰, 黄海鲲, 等. 气压湿度对负直流电晕特性影响的研究[J]. 中国电机工程学报, 2010, 30(4):118-124.
BianXingming, HuiJianfeng, Huang Haikun, et al. Effects of air pressure and humidity on the characteristics of negative DC corona[J]. Proceedings of the CSEE, 2010, 30(4):118-124.
[8] Hu Q, Shu L, Jiang X, et al.Effects of air pressure and humidity on the corona onset voltage of bundle conductors[J]. IET Generation, Transmission & Distribution, 2011, 5(6):621-629.
[9] 林锐. 直流正极性下导线电晕放电特性及影响因素的研究[D]. 重庆:重庆大学, 2009.
[10] 叶瑞, 张豪俊, 张冰冰, 等. 户外型智能控制柜凝露预防[J]. 电气技术, 2016, 17(8):110-113.
Ye Rui, Zhang Haojun, Zhang Bingbing, et al.Condensation prevention for outdoor intelligent control cabinet[J]. Electrical Engineering, 2016, 17(8):110-113.
[11] Rose JW.Dropwise condensation theory[J]. International Journal of Heat and Mass Transfer, 1981, 24(2):191-194.
[12] Abu-Orabi M.Modeling of heat transfer in dropwise condensation[J]. International Journal Heat and Mass Transfer, 1998, 41(1):81-87.
[13] Glicksman L, Hunt A.Numerical simulation of dropwise condensation[J]. International Journal of Heat and Mass Transfer, 1972, 15(11):2251-2269.
[14] Lefevre EJ, Rose JW.A theory of heat transfer by dropwise condensation[C]//Proceedings of the 3^rdInternational Heat Transfer Conference, Chicago, USA, 1966:362-375.
[15] Rose JW.On the mechanism of dropwisecondensation[J]. International Journal of Heat and Mass Transfer, 1967, 10(6):755-756.
[16] Graham C, Griffith P.Drop size distributions and heat transfer in dropwise condensation[J]. International Journal of Heat and Mass Transfer, 1973, 16(2):337-346.
[17] 胡琴, 袁伟, 舒立春, 等. 电压类型对复合绝缘子覆冰及闪络特性的影响[J]. 电工技术学报, 2015, 30(3):268-276.
Hu Qin, Yuan Wei, ShuLichun, et al. Influence of voltage types on composite insulator icing and flashover characteristics[J]. Transactions of China Electrotechnical Society, 2015, 30(3):268-276.
[18] 蒋兴良, 孟志高, 张志劲, 等. OPGW临界融冰电流及其影响因素[J]. 电工技术学报, 2016, 31(9):174-180.
Jiang Xingliang, MengZhigao, Zhang Zhijin, et al. Critical ice-melting current of ice-covered OPGW and its impacting factors[J]. Transactions of China Electrotechnical Society, 2016, 31(9):174-180.
[19] 舒立春, 宫林, 蒋兴良, 等. 水滴或污秽对导线电晕放电起始特性的影响[J]. 高电压技术, 2008, 34(4):633-637.
ShuLichun, Gong Lin, Jiang Xingliang, et al. Corona inception discharge characteristics of conductor adhered with water drops or pollution[J]. High Voltage Engineering, 2008, 34(4):633-637.
[20] 施明恒, 甘永平, 马重芳. 沸腾和凝结[M]. 北京: 高等教育出版社, 1995.
[21] 谢和平. 分形应用中的数学基础与方法[M]. 北京: 科学出版社, 1997.
[22] 张济忠. 分形[M]. 北京: 清华大学出版社, 1966.
[23] El-Bahy M, Abouelsaad M, Abdel-Gawad N, et al.Onset voltage of negative corona on stranded conductors[J]. Journal of Physics D-Applied Physics, 2007, 40(10):3094-3101.