极寒条件下输电线路弧垂在线监测技术研究应用
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摘要
文章研究现有接触式和非接触式弧垂传感技术,对比图像特征提取式、超声波测距式、激光测距式等三种传感器的低温运行性能,试验结果显示激光测距式弧垂传感器在各温度下具有较小的测量误差,在极寒条件下优势更突出。在此基础上,研制极寒条件下输电线路弧垂在线监测系统,并在呼伦贝尔根河、海纳尔、满洲里等地应用,通过监测数据对比,文章研制的在线监测系统整体无故障率高于通用型输电线路弧垂在线监测系统,且监测数据未出现中断和丢包,装置整体稳定性好。文中研究成果为我国输电线路监测装置在极寒条件下的运行设计提供依据,有效预防、减少输电线路事故的发生,具有广泛的社会效益和明显的经济效益。
The current contact and non-contact sag sensing technologies are studied in this paper. Performances of three sag sensors in low temperatures are compared and the results show that laser ranging sag sensor has small measuring error especially in cold conditions. Based on the results,sag online monitoring system of transmission line under severe cold conditions is designed,which has applied in Hulun Buir,Hainal,and Manzhouli. From the comparison of monitoring results,the designed system in this paper has higher no fault rate than normal system,as well as no interrupt and packet loss,which indicates high stability and reliability. Results in this paper can offer clues to the design of online monitoring system under severe cold conditions to prevent and reduce transmission line accident,which has great social and economic effects.
The current contact and non-contact sag sensing technologies are studied in this paper. Performances of three sag sensors in low temperatures are compared and the results show that laser ranging sag sensor has small measuring error especially in cold conditions. Based on the results,sag online monitoring system of transmission line under severe cold conditions is designed,which has applied in Hulun Buir,Hainal,and Manzhouli. From the comparison of monitoring results,the designed system in this paper has higher no fault rate than normal system,as well as no interrupt and packet loss,which indicates high stability and reliability. Results in this paper can offer clues to the design of online monitoring system under severe cold conditions to prevent and reduce transmission line accident,which has great social and economic effects.
引文
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[12]Company Usi-power.Power donut 2TM system for overhead transmission line monitoring[EB/OL].http://www.usi-power.com/Products%20&%20 Services/Donut/Power Donut2_Qualifications.pdf.October 2006,2006:10-13.
[13]周海滨,董明,任重,等.振动频谱法在架空输电线路张力检测中的应用[J].电网与清洁能源,2012,28(4):12-18.Zhou Haibin,Dong Ming,Ren Zhong,et al.Application of vibration spectrum analysis in tension detection of overhead transmission lines[J].Power System and Clean Energy,2012,28(4):12-18.
[14]Harvey J R,Larson,R E.Use of Elevated-Temperature Creep Data in Sag-Tension Calculations[J].Power Apparatus and Systems,1970,PAS-89(3):380-386.
[15]DOUGLASS D A,LAWRY D C,EDRIS A A,et al.Dynamic thermal ratings realize circuit load limits[J].IEEE Computer Applications in Power,2000,13(1):38-44.
[16]DOUGLASS D A,EDRIS A A.Real-time monitoring and dynamic thermal rating of power transmission circuits[J].IEEE Transactions on Power Delivery,1996,11(3):1407-1418.
[17]李戈,孟祥杰,王晓华,等.国内超声波测距研究应用现状[J].测绘科学,2011,(4):60-62.Li Ye,Meng Xiangjie,Wang Xiaohua,et al.Research and application status on domestic ultrasonic ranging[J].Science of Surveying and Mapping,2011,(4):60-62.
[2]张江华.高压输电线路弧垂在线监测研究[D].武汉:华中科技大学,2012.Zhang Jianghua.Research on online monitoring of sag of HV power lines[D].Wuhan:Huazhong University of Science and Technology,2012.
[3]丁龙.输电线路导线应力与弧垂监测[D].太原:太原理工大学,2014.Ding Long.Monitoring of sag of transmission line stress and sag[D].Taiyuan:Taiyuan University of Technology,2012.
[4]徐青松,季洪献,王孟龙.输电线路弧垂的实时监测[J].高电压技术,2007,33(7):206-209.Xu Qingsong,Ji Hongxian,Wang Menglong.Online monitoring of power lines sag[J].High Voltage Engineering,2007,33(7):206-209.
[5]SEPPA T O.Increasing transmission capacity by real time monitoring[C].IEEE Power Engineering Society Winter Meeting.New York,USA,2002.
[6]郝兰荣,王国龙,谭磊.浅析送电线路大负荷运行与导线弧垂的关系[J].高电压技术,2006,32(1):107-109.Hao Lanrong,Wang Guolong,Tan Lei.Analysis on the relation between sag of conductor and large load[J].High Voltage Engineering,2006,32(1):107-109.
[7]Q/GDW 242-2010,输电线路状态监测装置通用技术规范[S].
[8]张俊双,郭金刚,李硕,刘辰.极寒天气下输电线路在线监测装置可靠性研究与应用[J].中国水运,2015,(7):135-136,157.Zhang Junshuang,Guo Jingang,et al.Reliability study and application of online monitoring device on transmission lines under severe cold condition[J].China Water Transport,2015,(7):135-136,157.
[9]SEPPA T O.A practical approach for increasing the thermal capabilities of transmission lines[J].IEEE Transactions on Power Delivery,1993,8(3):1536-1550.
[10]SEPPA T O.Accurate ampacity determination:temperature-sag model for operational real time ratings[J].IEEE Transactions on Power Delivery,1995,10(3):1460-1470.
[11]SEPPA T O.Use of on-line tension monitoring systems forreal time ratings,ice loads and other environmental effects[C]//CIGRE.Paris,France:IEEE,1998:22-102.
[12]Company Usi-power.Power donut 2TM system for overhead transmission line monitoring[EB/OL].http://www.usi-power.com/Products%20&%20 Services/Donut/Power Donut2_Qualifications.pdf.October 2006,2006:10-13.
[13]周海滨,董明,任重,等.振动频谱法在架空输电线路张力检测中的应用[J].电网与清洁能源,2012,28(4):12-18.Zhou Haibin,Dong Ming,Ren Zhong,et al.Application of vibration spectrum analysis in tension detection of overhead transmission lines[J].Power System and Clean Energy,2012,28(4):12-18.
[14]Harvey J R,Larson,R E.Use of Elevated-Temperature Creep Data in Sag-Tension Calculations[J].Power Apparatus and Systems,1970,PAS-89(3):380-386.
[15]DOUGLASS D A,LAWRY D C,EDRIS A A,et al.Dynamic thermal ratings realize circuit load limits[J].IEEE Computer Applications in Power,2000,13(1):38-44.
[16]DOUGLASS D A,EDRIS A A.Real-time monitoring and dynamic thermal rating of power transmission circuits[J].IEEE Transactions on Power Delivery,1996,11(3):1407-1418.
[17]李戈,孟祥杰,王晓华,等.国内超声波测距研究应用现状[J].测绘科学,2011,(4):60-62.Li Ye,Meng Xiangjie,Wang Xiaohua,et al.Research and application status on domestic ultrasonic ranging[J].Science of Surveying and Mapping,2011,(4):60-62.