风速和温度对红外热像检测绝缘子的影响分析
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摘要
为研究风速和温度对红外成像法检测绝缘子的影响,提高检测的准确性,根据绝缘子电压分布模型和发热模型进行了仿真分析,并通过试验验证其合理性。仿真和试验结果表明:温度对可检测劣化阻值范围的影响很小,而风速的提升会显著减小可检测范围,其减小程度与绝缘子的位置有关,高风速对检测中间位置的劣化绝缘子会产生更为不利的影响。
In order to analyze the impact of wind speed and temperature on detecting deteriorated insulator using infrared thermal image and to improve the accuracy,we simulated according to the voltage distribution of insulator and heating model of the insulator,and proved the rationality by experiment.Simulation and experiment show that there is little effect of temperature on detectable range,while the increase of wind speed will significantly reduce the detectable range.And the degree of reduction is related to the location of a insulator.The high wind speed will have a more adverse effect on detecting the deteriorated insulators in the middle.
In order to analyze the impact of wind speed and temperature on detecting deteriorated insulator using infrared thermal image and to improve the accuracy,we simulated according to the voltage distribution of insulator and heating model of the insulator,and proved the rationality by experiment.Simulation and experiment show that there is little effect of temperature on detectable range,while the increase of wind speed will significantly reduce the detectable range.And the degree of reduction is related to the location of a insulator.The high wind speed will have a more adverse effect on detecting the deteriorated insulators in the middle.
引文
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[18]李佐胜,姚建刚,杨迎建,等.湿污绝缘子发热模型[J].电工技术学报,2009,24(7):21-27.LI Zuosheng,YAO Jiangang,YANG Yingjian,et al.Heating model of polluted and wetted insulators[J].Transactions of China Electrotechnical Society,2009,24(7):21-27.
[19]方春华,王建国,操平梅,等.污秽绝缘子泄漏电流与环境温、湿度相关分析[J].高电压技术,2012(4):885-891.FANG Chunhua,WANG Jianguo,CAO Pingmei,et al.Correlation analysis of contamination insulator leakage current environmental temperature and humidity[J].High Voltage Engineering,2012(4):885-891.
[20]陈海拔.悬式盘形绝缘子的带电检测[J].电网技术,2007,(S1):128-130.CHEN Haiba.Discussion on detection of cap and pin insulator in transmission line[J].Power System Technology,2007,31(S1):128-130.
[2]顾洪连,沈其荣.输电线路绝缘子掉串事故的原因分析[J].电力建设,2002,23(2):30-31.GU Honglian,SHEN Jirong.Analysis on causes of string breakage failure of insulators on transmission lines[J].Electric Power Construction,2002,23(2):30-31.
[3]迟殿林,曾庆立,孙立时.用紫外成像检测绝缘子[J].高电压技术,2006(2):115-116.CHI Dianlin,ZENG Qingli,SUN Lishi.Detecting insulator by UV imaging[J].High Voltage Engineering,2006(2):115-116.
[4]安玲,江秀臣,朱宇,等.检测劣质绝缘子的新方法---敏感绝缘子法[J].中国电机工程学报,2002(9):109-113.AN Ling,JIANG Xiuchen,ZHU Yu,et al.An new method of detection degradation insulator:sensitive insulator method[J].Proceedings of the CSEE,2002(9):109-113.
[5]ZHAO Zhenbing,XU Guozhi,QI Yincheng.Representation of binary feature pooling for detection of insulator strings in infrared images[J].IEEE Transactions on Dielectrics and Electrical Insulation,2016,23(5):2858-2866.
[6]张斌.劣化绝缘子检测技术的国内外研究现状[J].电网技术,2006(S1):275-278.ZHANG Bin.Current study situation of faulty insulator detection method home and abroad[J].Power System Technology,2006(S1):275-278.
[7]金立军,张达,段绍辉,等.基于红外与紫外图像信息融合的绝缘子污秽状态识别[J].电工技术学报,2014,29(8):309-318.JIN Lijun,ZHANG Da,DUAN Shaohui,et al.Recognition of contamination grades of insulators based on IR and UV image information fusion[J].Transactions of China Electrotechnical Society,2014,29(8):309-318.
[8]李佐胜,李文利,姚建刚,等.应用绝缘子红外热像处理的现场污秽等级检测方法[J].中国电机工程学报,2010(4):132-138.LI Zuosheng,LI Wenli,YAO Jiangang,et al.On-site detection of pollution lever of insulators based on infraredthermal-image processing[J].Proceedings of the CSEE,2010(4):132-138.
[9]何洪英,姚建刚,蒋正龙,等.利用红外图像特征和径向基概率神经网络识别不同湿度条件下绝缘子的污秽等级[J].中国电机工程学报,2006,26(8):117-123.HE Hongying,YAO Jiangang,JIANG Zhenglong,et al.Contamination grades recognition of insulators under different humidity using infrared image features and RBPNN[J].PROCEEDINGS OF THE CHINESE SOCIETYFOR ELECTRICAL ENGINEERING,2006,26(8):117-123.
[10]姚建刚,付鹏,李唐兵,等.基于红外图像的绝缘子串自动提取和状态识别[J].湖南大学学报:自然科学版,2015(2):74-80.YAO Jiangang,FU Peng,LI Tangbing,et al.Algorithm research of automatically extracting the erea of insulator from infrared image and state identification[J].Journal of Hunan University Natural Sciences,2015(2):74-80.
[11]胡淋波,李唐兵,姚建刚,等.綦陆杰,郑玲.一起劣化悬式瓷质高压绝缘子红外检测案例分析[J].红外技术,2016(07):622-626.HU Linbo,LI Tangbing,YAO Jiangang,et al.Analysis of an infrared detection case of degradated ceramic voltage insulator[J].Infrared Technology,2016(07):622-626.
[12]姚建刚,关石磊,陆佳政,等.相对温度分布特征与人工神经网络相结合的零值绝缘子识别方法[J].电网技术,2012(2):170-175.YAO Jiangang,GUAN Danlei,LU Jiazheng,et al.Identification of zero resistance insulators by combining relative temperature distribution characteristics with artificial neural network[J].Power System Technology,2012(2):170-175.
[13]贺景亮.绝缘子链电压分布的计算方法[J].高电压技术,1985(04):11-16.HE Jingliang.Calculation of voltage distribution on suspension insulator for HV transmission lines[J].High Voltage Engineering,1985(04):11-16.
[14]吴光亚,蔡炜,卢燕龙,等.交流输电线路绝缘子串片数的选择[J].高电压技术,2002,28(2):21-23.WU Guangya,CAI Hui,LU Yanlong,et al.Selection of numbers of insulator of insulator string on AC transmission line[J].High Voltage Engineering,2002,28(2):21-23.
[15]陈林华,梁曦东.特高压交流瓷绝缘子串电压分布的计算分析[J].高电压技术,2012,38(2):376-381.CHEN LIN Hua,LIANG Xidong.Computational analysis on voltage distribution along ceramic insulator strings of UHV AC transmission line[J].High Voltage Engineering,2012,38(2):376-381.
[16]MIZUNO Y,NAITO K.Voltage and temperature distribution along semiconducting glaze insulator strings[J].IEEE Transactions on Dielectrics and Electrical Insulation,1999,6(1):100-104.
[17]胡世征.劣化绝缘子的发热机理及热象特征[J].电网技术,1997(10):44-46.HU Shizheng.Heating mechanism and thermograph of degradated insulators[J].Power System Technology,1997(10):44-46.
[18]李佐胜,姚建刚,杨迎建,等.湿污绝缘子发热模型[J].电工技术学报,2009,24(7):21-27.LI Zuosheng,YAO Jiangang,YANG Yingjian,et al.Heating model of polluted and wetted insulators[J].Transactions of China Electrotechnical Society,2009,24(7):21-27.
[19]方春华,王建国,操平梅,等.污秽绝缘子泄漏电流与环境温、湿度相关分析[J].高电压技术,2012(4):885-891.FANG Chunhua,WANG Jianguo,CAO Pingmei,et al.Correlation analysis of contamination insulator leakage current environmental temperature and humidity[J].High Voltage Engineering,2012(4):885-891.
[20]陈海拔.悬式盘形绝缘子的带电检测[J].电网技术,2007,(S1):128-130.CHEN Haiba.Discussion on detection of cap and pin insulator in transmission line[J].Power System Technology,2007,31(S1):128-130.