直流输电工程直流电流互感器现场暂态校验技术
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摘要
随着直流输电工程建设的不断推进,直流电流互感器的现场校验技术逐渐成为直流输电领域的一大研究热点。针对目前直流电流互感器现场暂态性能校验技术的研究空白,分析了现有直流电流互感器的工作原理及其现场校验方法,研制了一套基于信号回采和预畸调节的便携式直流电流互感器现场暂态校验系统。该系统通过修正产生接近于仿真信号的阶跃大电流,其500 kHz的高速发送和采集模块保障了暂态过程采样与波形还原的准确性。利用该测试系统,在苏南UPFC工程实现了国内首次直流电流互感器的现场暂态性能试验。对极线和阀出口侧互感器的上升时间、最大过冲和暂态延时进行了测试,试验结果为直流电流互感器的暂态性能评估提供了依据。该技术在直流电流互感器现场校验中具有重要的推广意义。
With the constantly development of High-Voltage Direct Current(HVDC) transmission system construction, the on-site calibration of DC current transformer has become the major research interest in HVDC transmission field. According to the research gap of the on-site transient performance calibration technology, the working principle of the existing DC current transformer and the on-site calibration method are analyzed. A set of portable transient performance calibration system for DC current transformer is devised based on signal resampling and pre-distorting adjustment. By revision, the system produces the large step current close to the simulation signal, and its 500 kHz high speed sending and collecting modules ensure the accuracy of the sampling and waveform restoring during the transient process. Furthermore, the first on-site transient performance test of the pole and converter valve DC current transformers has been carried out with the system in Sunan UPFC Project. The rising time, maximum overshoot and the transient delay of the pole and converter valve transformers are tested, and the results provide the basis for the evaluation of the DC current transformers. The technology has a good application prospect for the on-site DC current transformer calibration.
With the constantly development of High-Voltage Direct Current(HVDC) transmission system construction, the on-site calibration of DC current transformer has become the major research interest in HVDC transmission field. According to the research gap of the on-site transient performance calibration technology, the working principle of the existing DC current transformer and the on-site calibration method are analyzed. A set of portable transient performance calibration system for DC current transformer is devised based on signal resampling and pre-distorting adjustment. By revision, the system produces the large step current close to the simulation signal, and its 500 kHz high speed sending and collecting modules ensure the accuracy of the sampling and waveform restoring during the transient process. Furthermore, the first on-site transient performance test of the pole and converter valve DC current transformers has been carried out with the system in Sunan UPFC Project. The rising time, maximum overshoot and the transient delay of the pole and converter valve transformers are tested, and the results provide the basis for the evaluation of the DC current transformers. The technology has a good application prospect for the on-site DC current transformer calibration.
引文
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[13]TAKAHASHI M,SASAKI K,HIRATA Y,et al.Field test of DC optical current transformer for HVDC link[C]//Proceedings of the IEEE PES General Meeting.Minneapolis,July 25-29,2010,Providence,RI,USA:1-6.
[14]董新洲,雷傲宇,汤兰西.电力线路行波差动保护与电流差动保护的比较研究[J].电力系统保护与控制,2018,46(1):1-8.DONG Xinzhou,LEI Aoyu,TANG Lanxi.Comparative study of traveling wave differential protection and current differential protection for power lines[J].Power System Protection and Control,2018,46(1):1-8.
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[16]RIETVELD G,BEEK J,HOUTZAGER E.Accurate DCcurrent ratio measurements for primary currents up to600A[J].IEEE Transactions on Instrumentation and Measurement,2015,64(11):3055-3061.
[17]邱进,吴士普,汪本进,等.特高压直流换流站分压器预试方法研究[J].电力系统保护与控制,2018,46(3):152-157.QIU Jin,WU Shipu,WANG Benjin,et al.Preventive test method research of UHVDC converter station DCvoltage divider[J].Power System Protection and Control,2018,46(3):152-157.
[18]罗苏南,曹冬明,王耀,等.±800 kV特高压直流全光纤电流互感器研制及应用研究[J].高压电器,2016,52(10):1-7.LUO Sunan,CAO Dongming,WANG Yao,et al.Development and application research of±800 kVUHVDC fiber optical current transducer[J].High Voltage Apparatus,2016,52(10):1-7.
[19]贾丹平,伞宏力,苑玮琦,等.基于光纤测温法的电流互感器[J].电工技术学报,2008,23(10):47-52.JIA Danping,SAN Hongli,YUAN Weiqi,et al.Current transformer based on optical fiber thermometry[J].Transactions of China Electrotechnical Society,2008,23(10):47-52.
[20]宋璇坤,闫培丽,肖智宏,等.全光纤电流互感器技术应用评述[J].电力系统保护与控制,2016,44(8):149-154.SONG Xuankun,YAN Peili,XIAO Zhihong,et al.Comment on the technology and application of fiber optic current transformer(FOCT)[J].Power System Protection and Control,2016,44(8):149-154.
[21]张鼎衢,潘峰,林国营,等.高压直流电流互感器运行现状及现场校准技术研究[J].电力与能源,2015,36(6):787-793.ZHANG Dingqu,PAN Feng,LIN Guoying,et al.Optical status and on-site calibration technology for HVDCtransformer[J].Power&Energy,2015,36(6):787-793.
[22]李前,章述汉,李登云,等.±500 kV直流电压互感器现场校准技术试验分析[J].高电压技术,2010,36(11):2856-2862.LI Qian,ZHANG Shuhan,LI Dengyun,et al.Experimental analysis of the on-site calibration technology for±500 kVDCPTs[J].High Voltage Engineering,2010,36(11):2856-2862.
[23]葛立青,刘青红,王建锋,等.计及样本容量合理性的风电功率预测考核算法[J].电力系统自动化,2017,41(18):118-124.GE Liqing,LIU Qinghong,WANG Jianfeng,et al.Economic dispatch optimization method for large-scale power grid based on variable dimension reduction[J].Automation of Electric Power Systems,2017,41(18):118-124.
[24]景无为,黄学良,陈琛,等.多组无线电能传输系统间效率影响因素分析[J].电工技术学报,2015,30(4):457-462.JING Wuwei,HUANG Xueliang,CHEN Chen,et al.Study on impacts among wireless power transmission multi-system[J].Transactions of China Electrotechnical Society,2015,30(4):457-462.
[25]庞福滨,杨毅,袁宇波,等.智能变电站保护动作时间延时特性研究[J].电力系统保护与控制,2016,44(15):86-94.PANG Fubin,YANG Yi,YUAN Yubo,et al.Research on characteristics of intelligent substation protection time delay[J].Power System Protection and Control,2016,44(15):86-94.
[2]许朋见,黄金海,许静静,等.宾金特高压直流换相失败保护的研究[J].电力系统保护与控制,2017,45(2):140-146.XU Pengjian,HUANG Jinhai,XU Jingjing,et al.Study of Bin-Jin UHVDC project commutation failures protection[J].Power System Protection and Control,2017,45(2):140-146.
[3]刘凯,张庆武,侍乔明.灵绍±800 kV特高压直流协调频率控制功能应用[J].电力工程技术,2018,37(4):14-20.LIU Kai,ZHANG Qingwu,SHI Qiaoming.Application of coordinated frequency control function in Lingshao±800 kV UHVDC project[J].Electric Power Engineering Technology,2018,37(4):14-20.
[4]张杰,胡媛媛,刘飞,等.高压直流互感器现场校验关键技术[J].高电压技术,2016,42(9):3003-3010.ZHANG Jie,HU Yuanyuan,LIU Fei,et al.Critical technology of on-site calibration system for DC electronic instrument transformer[J].High Voltage Engineering,2016,42(9):3003-3010.
[5]杨亚宇,邰能灵,范春菊,等.基于计算电阻的高压直流输电线路纵联保护[J].电工技术学报,2017,32(7):84-94.YANG Yayu,TAI Nengling,FAN Chunju,et al.A pilot protection scheme for HVDC transmission lines based on calculated resistance[J].Transactions of China Electrotechnical Society,2017,32(7):84-94.
[6]陈波,李俊一,王军龙,等.高精度光学电压互感器技术及应用[J].电网与清洁能源,2017,33(6):7-13.CHEN Bo,LI Junyi,WANG Junlong,et al.Technology and its application of high precision optical voltage transformer[J].Power System and Clean Energy,2017,33(6):7-13.
[7]习超群,程炯,杨世贵.光电流互感器在换流站直流滤波器中的应用[J].电网技术,2008,32(1):17-19.XI Chaoqun,CHENG Jiong,YANG Shigui.The application of optical current transformer in converter station DCfilter and its fault reason analysis[J].Power System Technology,2008,32(1):17-19.
[8]卜强生,王建明,袁宇波,等.电子式互感器极性校验系统的设计与应用[J].江苏电机工程,2012,31(5):32-36.BU Qiangsheng,WANG Jianming,YUAN Yubo,et al.Research and application of the polarity verification system of electronic transformers[J].Jiangsu Electrical Engineering,2012,31(5):32-36.
[9]李前,李鹤,周一飞,等.±800 kV直流输电系统换流站直流电流互感器现场校准技术[J].高电压技术,2011,37(12):3053-3058.LI Qian,LI He,ZHOU Yifei,et al.On-site calibration technology of DC current measurement device in converter station of±800 k V UHVDC transmission project[J].High Voltage Engineering,2011,37(12):3053-3058.
[10]柏航,徐雁,肖霞,等.HVDC电子式电流互感器现场校准方法及关键问题[J].中国电机工程学报,2016,36(19):5227-5236.BAI Hang,XU Yan,XIAO Xia,et al.Research on field calibration methods and key problems for HVDC electronic current transformers[J].Proceedings of the CSEE,2016,36(19):5227-5236.
[11]郑欣,汪司珂,庞博,等.直流电流互感器现场检测方法及应用[J].电测与仪表,2015,52(16):119-123.ZHENG Xin,WANG Sike,PANG Bo,et al.The method and application of DC current transformer test in field[J].Electrical Measurement&Instrumentation,2015,52(16):119-123.
[12]CALLEGARO L,CASSIAGO C,GASPAROTTO E.On the calibration of direct-current current transformers(DCCT)[J].IEEE Transactions on Instrumentation and Measurement,2015,64(3):723-727.
[13]TAKAHASHI M,SASAKI K,HIRATA Y,et al.Field test of DC optical current transformer for HVDC link[C]//Proceedings of the IEEE PES General Meeting.Minneapolis,July 25-29,2010,Providence,RI,USA:1-6.
[14]董新洲,雷傲宇,汤兰西.电力线路行波差动保护与电流差动保护的比较研究[J].电力系统保护与控制,2018,46(1):1-8.DONG Xinzhou,LEI Aoyu,TANG Lanxi.Comparative study of traveling wave differential protection and current differential protection for power lines[J].Power System Protection and Control,2018,46(1):1-8.
[15]高压直流输电直流电子式电流互感器技术规范:Q/GDW 530-2010[S].北京:中国电力出版社,2010.Technical standards for HVDC electronic current transformers:Q/GDW 530-2010[S].Beijing:China Electric Power Press,2010.
[16]RIETVELD G,BEEK J,HOUTZAGER E.Accurate DCcurrent ratio measurements for primary currents up to600A[J].IEEE Transactions on Instrumentation and Measurement,2015,64(11):3055-3061.
[17]邱进,吴士普,汪本进,等.特高压直流换流站分压器预试方法研究[J].电力系统保护与控制,2018,46(3):152-157.QIU Jin,WU Shipu,WANG Benjin,et al.Preventive test method research of UHVDC converter station DCvoltage divider[J].Power System Protection and Control,2018,46(3):152-157.
[18]罗苏南,曹冬明,王耀,等.±800 kV特高压直流全光纤电流互感器研制及应用研究[J].高压电器,2016,52(10):1-7.LUO Sunan,CAO Dongming,WANG Yao,et al.Development and application research of±800 kVUHVDC fiber optical current transducer[J].High Voltage Apparatus,2016,52(10):1-7.
[19]贾丹平,伞宏力,苑玮琦,等.基于光纤测温法的电流互感器[J].电工技术学报,2008,23(10):47-52.JIA Danping,SAN Hongli,YUAN Weiqi,et al.Current transformer based on optical fiber thermometry[J].Transactions of China Electrotechnical Society,2008,23(10):47-52.
[20]宋璇坤,闫培丽,肖智宏,等.全光纤电流互感器技术应用评述[J].电力系统保护与控制,2016,44(8):149-154.SONG Xuankun,YAN Peili,XIAO Zhihong,et al.Comment on the technology and application of fiber optic current transformer(FOCT)[J].Power System Protection and Control,2016,44(8):149-154.
[21]张鼎衢,潘峰,林国营,等.高压直流电流互感器运行现状及现场校准技术研究[J].电力与能源,2015,36(6):787-793.ZHANG Dingqu,PAN Feng,LIN Guoying,et al.Optical status and on-site calibration technology for HVDCtransformer[J].Power&Energy,2015,36(6):787-793.
[22]李前,章述汉,李登云,等.±500 kV直流电压互感器现场校准技术试验分析[J].高电压技术,2010,36(11):2856-2862.LI Qian,ZHANG Shuhan,LI Dengyun,et al.Experimental analysis of the on-site calibration technology for±500 kVDCPTs[J].High Voltage Engineering,2010,36(11):2856-2862.
[23]葛立青,刘青红,王建锋,等.计及样本容量合理性的风电功率预测考核算法[J].电力系统自动化,2017,41(18):118-124.GE Liqing,LIU Qinghong,WANG Jianfeng,et al.Economic dispatch optimization method for large-scale power grid based on variable dimension reduction[J].Automation of Electric Power Systems,2017,41(18):118-124.
[24]景无为,黄学良,陈琛,等.多组无线电能传输系统间效率影响因素分析[J].电工技术学报,2015,30(4):457-462.JING Wuwei,HUANG Xueliang,CHEN Chen,et al.Study on impacts among wireless power transmission multi-system[J].Transactions of China Electrotechnical Society,2015,30(4):457-462.
[25]庞福滨,杨毅,袁宇波,等.智能变电站保护动作时间延时特性研究[J].电力系统保护与控制,2016,44(15):86-94.PANG Fubin,YANG Yi,YUAN Yubo,et al.Research on characteristics of intelligent substation protection time delay[J].Power System Protection and Control,2016,44(15):86-94.