高压断路器弧触头动态接触电阻研究
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摘要
SF_6高压断路器触头间的动态接触电阻是反映SF6高压断路器弧触头烧蚀程度的一个重要参数。研究弧触头动态接触电阻与弧触头的烧蚀程度之间的关系具有重要意义。基于电接触理论,建立了一个弧触头动态接触电阻仿真的理论模型。通过开断过程中的弧触头受力情况分析,得出在八触指自力型弧触头模型中,电流小于2 k A时,可忽略各种电动力的影响,只考虑触指接触压力的影响。在这个假设下,文中首次建立了简化的弧触头动态接触电阻的仿真模型。与大量弧触头模拟烧蚀试验结果对比,文中所提出的弧触头动态接触电阻仿真模型,在弧触头接触行程为15 mm以后,仿真结果与试验结果吻合度较高。
The dynamic contact resistance between the arcing contacts of an SF6 high voltage circuit breaker is an im-portant parameter reflecting the erosion degree of the arcing contacts of the circuit breaker. It is of great importanceto study the relationship between the dynamic contact resistance of the arcing contacts and their erosion degree of thearcing contact. In this study,a theoretical model for dynamic contact resistance simulation of the arcing contacts isestablished on the basis of the theory of electrical contact. The contact force on the arcing contact during breakingprocess is analyzed. Result indicates that the influence of the contact force is only considered when the current is lessthan 2 kA in the model of eight-finger self-propelled arcing contacts. Under this assumption,a simulation model ofsimplified dynamic contact resistance of the arcing contact is established. Compared with the simulated erosion testresults of a large number of arcing contacts,the proposed simulation model of arcing contact dynamic contact resis-tance shows a good agreement with the test results after 15 mm of the contacting distance of arcing contact.
The dynamic contact resistance between the arcing contacts of an SF6 high voltage circuit breaker is an im-portant parameter reflecting the erosion degree of the arcing contacts of the circuit breaker. It is of great importanceto study the relationship between the dynamic contact resistance of the arcing contacts and their erosion degree of thearcing contact. In this study,a theoretical model for dynamic contact resistance simulation of the arcing contacts isestablished on the basis of the theory of electrical contact. The contact force on the arcing contact during breakingprocess is analyzed. Result indicates that the influence of the contact force is only considered when the current is lessthan 2 kA in the model of eight-finger self-propelled arcing contacts. Under this assumption,a simulation model ofsimplified dynamic contact resistance of the arcing contact is established. Compared with the simulated erosion testresults of a large number of arcing contacts,the proposed simulation model of arcing contact dynamic contact resis-tance shows a good agreement with the test results after 15 mm of the contacting distance of arcing contact.
引文
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[5]李六零,丁卫东,石月春,等.动态电阻测量法用于评估SF6断路器灭弧室状况的探讨[J].高压电器,2002,38(2):54-57.LI Liuling,DING Weidong,SHI Yuechun,et al.Dynamic resistance measurement:A new method for online condition assessment of SF6 circuit breaker[J].High Voltage Apparatus,2002,38(2):54-57.
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[8]李雪,贺欣,吴杨,等.SF6断路器触头状态专家诊断系统研究[J].水电能源科学,2016,34(7):211-214.LI Xue,HE Xin,WU Yang,et al.Study on diagnosis of SF6circuit breaker contact[J].Water Resources and Power,2016,34(7):211-214.
[9]程亭婷,高文胜,陈锋,等.实验电流对高压断路器动态回路电阻的影响[J].高电压技术,2015,41(9):3142-3147.CHENG Tingting,GAO Wensheng,CHEN Feng,et al.Effect of experimental current on dynamic loop resistance of high voltage circuit breaker[J].High Voltage Engineering,2015,41(9):3142-3147.
[10]LANDRY M,MERCIER A,OUELLERT G,et al.A new measurement method of the dynamic contact resistance of HV circuit breakers[C]//IEEE PES Transmission and Distribution Conference and Exposition Latin America.Venezuela:IEEE,2006:1002-1009.
[11]STANISIC Z,STOCKHOLM,NEIMANIS.A new ultra lightweight method for Static and dynamic resistance measurements[C]//Conference Record of the 2010 IEEE International Symposium on Electrical Insulation(ISEI).San Diego:IEEE,2010:1-4.
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[13]DE SOUZA R T,DA COSTA E G,DE OLIVEIRA A C.Characterizationofcontactsdegradationincircuitbreakers through the dynamic contact resistance[C]//Transmission and Distribution Conference and Exposition-Latin America(PES T&DLA).[S.l.]:IEEE,2014:1-5.
[14]DE SOUZA R T,DA COSTA E G.de ARAúJO J F.A system for dynamic contact resistance with Arduino platform on MV and HV Circuit Breaker[C]//Instrumentation and Measurement Technology Conference(I2MTC).[S.l.]:IEEE,2014:369-373.
[15]周蠡,鲁铁成,张博,等.基于三维分形接触电阻模型的粗糙表面多物理场耦合分析[J].电工技术学报,2015,30(14):226-232.ZHOU Tie,LU Tiecheng,ZHANG Bo,et al.Multi-physics coupling analysis of rough surfaces using 3D fractal model[J].Transactions of China Electrotechnical Society,2015,30(14):226-232.
[16]纽春萍,强若辰,王小华,等.高压断路器接触电阻耦合面积分析法[J].高压电器,2015,51(21):18-23.NIU Chunping,QIANG Ruochen,WANG Xiaohua,et al.Analysis of contact resistance coupling area of high voltage circuit breakers[J].High Voltage Apparatus,2015,51(21):18-23.
[17]金向朝,黄松波,谢志杨,等.考虑粗糙表面接触的气体绝缘开关设备接头接触电阻数值计算与影响因素分析[J].电网技术,2015,39(6):1725-1730.JIN Xiangchao,HUANG Songbo,XIE Zhiyang,et al.Numerical calculation and influence factors analysis of gas insulated switchgear connector contact resistance considering rough surface contact[J].Power System Technology,2015,39(6):1725-1730.
[18]吴细秀.开关电器触头材料喷溅侵蚀模型研究及其实验[D].武汉:华中科技大学,2005:59-61.WU Xixiu.Investigate on the sputter erosion model of electrical arcing contact and its experimental[D].Wuhan:Huazhong University of Science and Technology,2005:59-61.
[19]程礼椿.电接触理论及应用[M].北京:机械工业出版社,1985:18-27.CHENG Lichun.Electric contact theory and application[M].Beijing:Mechanical Industry Press,1985:18-27.
[20]傅中,陈维江,李志兵,等.大容量电容器组用断路器弧触头侵蚀状态的评估方法[J].中国电机工程学,2016,36(20):5668-5678.FU Zhong,CHEN Weijiang,LI Zhibing,et al.Evaluation of erosion status of circuit breaker arcing contacts for large capacity capacitor banks[J].Proceeding of the CSEE,2016,36(20):5668-5678.
[21]林莘,何柏娜,徐建源.自力型触头的设计与计算[J].高电压技术,2008,34(4):828-830.LIN Xin,HE Baina,XU Jianyuan.Design and calculation of self-elastic contact[J].High Voltage Engineering,2008,34(4):828-830.
[22]陈忠华,石英龙,时光,等.受电弓滑板与接触网导线接触电阻计算模型[J].电工技术学报,2013,28(5):188-195.CHEN Zhonghua,SHI Yinglong,SHI Guang,et al.Calculation model of contact resistance between pantograph and contact wire[J].Transactions of China Electrotechnical Society,2013,28(5):188-195.
[2]黎斌.高压电器设计[M].北京:机械工业出版社,2003.LI Bin.High-voltage electrical design[M].Beijing:Mechanical Industry Press,2003.
[3]舒印彪.1 000 k V交流特高压输电技术的研究和应用[J].电网技术,2005,29(19):1-6.SHU Yinbiao.Research and application of 1 000 k V AC UHV transmission technology[J].Power System Technology,2005,29(19):1-6.
[4]吴祎琼,黄宝莹,燕立,等.1 000 k V变电站主变110 k V侧并联电容器装置的参数选择[J].电网技术,2009,33(10):42-47.WU Yiqiong,HUANG Baoying,YAN Li,et al.Parameter selection of shunt capacitor device for 110 k V side of main transformer in 1 000 k V substation[J].Power System Technology,2009,33(10):42-47.
[5]李六零,丁卫东,石月春,等.动态电阻测量法用于评估SF6断路器灭弧室状况的探讨[J].高压电器,2002,38(2):54-57.LI Liuling,DING Weidong,SHI Yuechun,et al.Dynamic resistance measurement:A new method for online condition assessment of SF6 circuit breaker[J].High Voltage Apparatus,2002,38(2):54-57.
[6]毛文奇,陈功,范敏,等.126 k V断路器触头状态诊断方法研究[J].水电能源科学,2015,33(5):190-192.MAO Wenqi,CHEN Gong,FAN Min,et al.Study on the contact state diagnosis of 126 k V circuit breaker[J].Water Resources and Power,2015,33(5):190-192.
[7]范敏,毛文奇,段肖力,等.基于动态电阻技术的SF6断路器灭弧室状态评估方法[J].水电能源科学,2016,34(10):189-192.FAN Min,MAO Wenqi,DUAN Xiaoli,et al.Study on state evaluation of arc extinguishing chamber of SF6 circuit breaker based on dynamic resistance technology[J].Water Resources and Power,2016,34(10):189-192.
[8]李雪,贺欣,吴杨,等.SF6断路器触头状态专家诊断系统研究[J].水电能源科学,2016,34(7):211-214.LI Xue,HE Xin,WU Yang,et al.Study on diagnosis of SF6circuit breaker contact[J].Water Resources and Power,2016,34(7):211-214.
[9]程亭婷,高文胜,陈锋,等.实验电流对高压断路器动态回路电阻的影响[J].高电压技术,2015,41(9):3142-3147.CHENG Tingting,GAO Wensheng,CHEN Feng,et al.Effect of experimental current on dynamic loop resistance of high voltage circuit breaker[J].High Voltage Engineering,2015,41(9):3142-3147.
[10]LANDRY M,MERCIER A,OUELLERT G,et al.A new measurement method of the dynamic contact resistance of HV circuit breakers[C]//IEEE PES Transmission and Distribution Conference and Exposition Latin America.Venezuela:IEEE,2006:1002-1009.
[11]STANISIC Z,STOCKHOLM,NEIMANIS.A new ultra lightweight method for Static and dynamic resistance measurements[C]//Conference Record of the 2010 IEEE International Symposium on Electrical Insulation(ISEI).San Diego:IEEE,2010:1-4.
[12]STOCKHOLM S Z.Method for static and dynamic resistance measurements of HV circuit breaker[C]//2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies(ISGT Europe).Manchester:IEEE,2011:1-5.
[13]DE SOUZA R T,DA COSTA E G,DE OLIVEIRA A C.Characterizationofcontactsdegradationincircuitbreakers through the dynamic contact resistance[C]//Transmission and Distribution Conference and Exposition-Latin America(PES T&DLA).[S.l.]:IEEE,2014:1-5.
[14]DE SOUZA R T,DA COSTA E G.de ARAúJO J F.A system for dynamic contact resistance with Arduino platform on MV and HV Circuit Breaker[C]//Instrumentation and Measurement Technology Conference(I2MTC).[S.l.]:IEEE,2014:369-373.
[15]周蠡,鲁铁成,张博,等.基于三维分形接触电阻模型的粗糙表面多物理场耦合分析[J].电工技术学报,2015,30(14):226-232.ZHOU Tie,LU Tiecheng,ZHANG Bo,et al.Multi-physics coupling analysis of rough surfaces using 3D fractal model[J].Transactions of China Electrotechnical Society,2015,30(14):226-232.
[16]纽春萍,强若辰,王小华,等.高压断路器接触电阻耦合面积分析法[J].高压电器,2015,51(21):18-23.NIU Chunping,QIANG Ruochen,WANG Xiaohua,et al.Analysis of contact resistance coupling area of high voltage circuit breakers[J].High Voltage Apparatus,2015,51(21):18-23.
[17]金向朝,黄松波,谢志杨,等.考虑粗糙表面接触的气体绝缘开关设备接头接触电阻数值计算与影响因素分析[J].电网技术,2015,39(6):1725-1730.JIN Xiangchao,HUANG Songbo,XIE Zhiyang,et al.Numerical calculation and influence factors analysis of gas insulated switchgear connector contact resistance considering rough surface contact[J].Power System Technology,2015,39(6):1725-1730.
[18]吴细秀.开关电器触头材料喷溅侵蚀模型研究及其实验[D].武汉:华中科技大学,2005:59-61.WU Xixiu.Investigate on the sputter erosion model of electrical arcing contact and its experimental[D].Wuhan:Huazhong University of Science and Technology,2005:59-61.
[19]程礼椿.电接触理论及应用[M].北京:机械工业出版社,1985:18-27.CHENG Lichun.Electric contact theory and application[M].Beijing:Mechanical Industry Press,1985:18-27.
[20]傅中,陈维江,李志兵,等.大容量电容器组用断路器弧触头侵蚀状态的评估方法[J].中国电机工程学,2016,36(20):5668-5678.FU Zhong,CHEN Weijiang,LI Zhibing,et al.Evaluation of erosion status of circuit breaker arcing contacts for large capacity capacitor banks[J].Proceeding of the CSEE,2016,36(20):5668-5678.
[21]林莘,何柏娜,徐建源.自力型触头的设计与计算[J].高电压技术,2008,34(4):828-830.LIN Xin,HE Baina,XU Jianyuan.Design and calculation of self-elastic contact[J].High Voltage Engineering,2008,34(4):828-830.
[22]陈忠华,石英龙,时光,等.受电弓滑板与接触网导线接触电阻计算模型[J].电工技术学报,2013,28(5):188-195.CHEN Zhonghua,SHI Yinglong,SHI Guang,et al.Calculation model of contact resistance between pantograph and contact wire[J].Transactions of China Electrotechnical Society,2013,28(5):188-195.