梯形动态电弧模型下VFTO的计算和分析
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摘要
针对气体绝缘变电站(gas insulated substation,GIS)的特快速暂态过电压(very fast tran-sient over-voltage,VFTO)进行仿真计算时,根据不同情况,准确地建立电弧模型是提高VFTO计算精度的关键。本文根据电弧的动态物理过程,在分段动态电弧模型的基础上,提出一种基于Bergeron等效电路并结合梯形积分法得到的动态电弧模型(以下简称梯形动态电弧模型),将时变电弧电阻、时变电弧电感、电弧杂散电容及隔离开关的时变对地电容均考虑进该电弧模型中,结果表明,梯形动态电弧模型适用于VFTO的计算与分析,对提高VFTO仿真计算结果准确性有着重要意义。
At present,the very fast transient overvoltage(VFTO)in gas insulated substation(GIS)is simulated,according to different circumstances,accurately establishing the arc model is the key to im-prove the calculation precision of VFTO. According to the dynamic physical process of the arc and basingon piecewise dynamic arc model,a dynamic arc model that is obtained by using trapezoidal integrationmethod based on the equivalent circuit of Bergeron(hereinafter referred to as the trapezoidal dynamic arcmodel)is proposed,the time-varying arc resistance,time-varying inductance,stray capacitance arcand variable the capacitance of isolating switch are considered into the arc model. The results show thatthe trapezoidal dynamic arc model can be used in the calculation and analysis of VFTO,and it is greatsignificance to improve the accuracy of VFTO simulation results.
At present,the very fast transient overvoltage(VFTO)in gas insulated substation(GIS)is simulated,according to different circumstances,accurately establishing the arc model is the key to im-prove the calculation precision of VFTO. According to the dynamic physical process of the arc and basingon piecewise dynamic arc model,a dynamic arc model that is obtained by using trapezoidal integrationmethod based on the equivalent circuit of Bergeron(hereinafter referred to as the trapezoidal dynamic arcmodel)is proposed,the time-varying arc resistance,time-varying inductance,stray capacitance arcand variable the capacitance of isolating switch are considered into the arc model. The results show thatthe trapezoidal dynamic arc model can be used in the calculation and analysis of VFTO,and it is greatsignificance to improve the accuracy of VFTO simulation results.
引文
[1]吴文辉,曹祥麟.电力系统电磁暂态计算与EMTP应用[M].北京:中国水利水电出版社,2012.
[2]刘教民,杜巍,王震洲,等.VFTO仿真中GIS隔离开关电弧模型的研究进展[J].高压电器,2013,49(5):21-25.LIU Jiaomin,DU Wei,WANG Zhenzhou,et al.The research progress of isolating Switch arc model in GIS simulation of VFTO[J].High Voltage Apparatus,2013,49(5):21-25.
[3]刘德东,吴文辉,何人望,等.考虑弧道电感特性的电弧电阻模型下VFTO的研究[J].高压电器,2015,51(1):105-109.LIU Dedong,WU Wenhui,HE Renwang,et al.The VFTOresearch under the arc resistance model caring about inductance characteristics[J].High Voltage Apparatus,2015,51(1):105-109.
[4]VINOD KUMAR V,THOMAS J M,NAIDU M S.Influence of switching conditions on the VFTO magnitudes in a GIS[J].Power Delivery,IEEETransactionson,2001,16(4):539-544.
[5]MARTINEZ J A,CHOWDHURI P.Modeling guidelines for GIS[J].IEEE Trans on Power Delivery,2001,16(4):539-544.
[6]高有华,王尔智,尹小芳.VFTO试验与数值模拟对比分析[J].电机与控制学报,2011(1):52-55.GAO Youhua,WANG Erzhi,YIN Xiaofang.Comparison and analysis between test and numerical simulation of VF-TO[J].Electric Machine and Control,2011(1):52-55.
[7]田荟,吴细秀,张欢.VFTO计算中隔离开关燃弧模型探究[J].高压电器,2013,49(5):106-113.TIAN Hui,WU Xixiu,ZHANG Huan.Review on the arcing model for disconnectors in the calculation of VFTO[J].High Voltage Apparatus,2013,49(5):106-113.
[8]孟涛,林莘,徐建源.分段电弧模型下VFTO的计算与分析[J].电工技术学报,2010,25(9):69-73.MENG Tao,LIN Shen,XU Jianyuan.Calculation of VFTOon the condition of segmental arcing model[J].Transactions of China Electrotechnical Society,2010,25(9):69-73.
[9]林莘,王娜,徐建源.动态电弧模型下特快速瞬态过电压特性的计算与分析[J].中国电机工程学报,2012,32(16):157-164.LIN Shen,WANG Na,XU Jianyuan.Calculation and analysis of very fast transient over-voltage characteristic on the condition of dynamic arcing model[J].Proceedings of the CSEE,2012,32(16):157-164.
[10]张雪.GIS设备VFTO仿真中隔离开关电弧模型的研究[D].北京:华北电力大学:北京华北电力大学,2010.
[11]李爽.GIS中DS操作产生的电磁暂态问题及其影响研究[D].沈阳:沈阳工业大学,2011.
[12]张建功,王红超,赵军,等.基于分段电弧模型的多次重燃弧VFTO计算与分析[J].高压电器,2016,52(5):14-19.ZHANG Jiangong,WANG Hongchao,ZHAO Jun,et al.Calculation and analysis of multiple restrikes VFTO based on piecewise arc model[J].High Voltage Apparatus,2016,52(5):14-19.
[13]万亦如,杜鹃,刘庄.隔离开关多次重燃的VFTO计算模型[J].浙江电力,2014(2):22-25.WAN Yiru,DU Juan,LIU Zhuang.VFTO calculation model for multiple restrikes of disconnecting switches[J].Zhejiang Electric Power,2014(2):22-25.
[14]RIECHERT U,NEUMANN C,HAMA H,et al.Very fast transient overvoltage(VFTO)in gas-insulated UHV substations[R].CIGRE Advisory Group Report,paris,2010.
[15]张建功,赵军,谢鹏康,等.VFTO作用下电子式电流互感器二次端口电磁特性仿真分析[J].电工技术学报,2015,30(z2):88-94.ZHANG Jiangong,ZHAO Jun,XIE Pengkang,et al.Simulation and analysis of electromagnetic properties at the secondary port of electronic current transformers under very fast transient overvoltage[J].Transactions of China Electrotechnical Society,2015,30(z2):88-94.199
[16]陈维江,颜湘莲,王绍武,等.气体绝缘开关设备中特快速瞬态过电压研究的新进展[J].中国电机工程学报,2011,31(31):1-11.CHEN Weijiang,YAN Xianglian,WANG Shaowu,et al.Recent progress in investigations on very fast transient overvoltage in gas insulated switchgear[J].Proceedings of the CSEE,2011,31(31):1-11.
[17]IKEBE K,SHIMOMURA T.Simulation technology for1 000 k V power systems[J].Mitsubishi Electric Advance,1996,77(12):238-324.
[18]岳功昌,刘卫东,陈维江,等.气体绝缘开关设备中特快速瞬态过电压的全过程测量方法[J].中国电机工程学报,2011,31(31):18-27.YUE Gongchang,LIU Weidong,CHEN Weijiang,et al.Measurement methods of very fast transient overvoltage in gas insulated switchgear with complete process[J].Proceedings of the CSEE,2011,31(31):18-27.
[19]王磊,陈维江,岳功昌,等.特高压气体绝缘开关设备的隔离开关残余电荷电压仿真分析[J].高电压技术,2014,40(12):3911-3917.WANG Lei,CHEN Weijiang,YUE Gongchang,et al.Simulation analysis of potential caused by trapped charge in disconnector of UHV GIS device[J].High Voltage Apparatus,2014,40(12):3911-3917.
[20]王娜,林莘,徐建源,等.GIS中隔离开关电弧模型对快速暂态过电压的影响[J].电工电能新技术,2013,32(1):85-88.WANG Na,LIN Shen,XU Jianyuan,et al.Influence of arcing model of GIS switching to VFTO[J].Advanced Technology of Electrical Engineering and Energy,2013,32(1):85-88.
[2]刘教民,杜巍,王震洲,等.VFTO仿真中GIS隔离开关电弧模型的研究进展[J].高压电器,2013,49(5):21-25.LIU Jiaomin,DU Wei,WANG Zhenzhou,et al.The research progress of isolating Switch arc model in GIS simulation of VFTO[J].High Voltage Apparatus,2013,49(5):21-25.
[3]刘德东,吴文辉,何人望,等.考虑弧道电感特性的电弧电阻模型下VFTO的研究[J].高压电器,2015,51(1):105-109.LIU Dedong,WU Wenhui,HE Renwang,et al.The VFTOresearch under the arc resistance model caring about inductance characteristics[J].High Voltage Apparatus,2015,51(1):105-109.
[4]VINOD KUMAR V,THOMAS J M,NAIDU M S.Influence of switching conditions on the VFTO magnitudes in a GIS[J].Power Delivery,IEEETransactionson,2001,16(4):539-544.
[5]MARTINEZ J A,CHOWDHURI P.Modeling guidelines for GIS[J].IEEE Trans on Power Delivery,2001,16(4):539-544.
[6]高有华,王尔智,尹小芳.VFTO试验与数值模拟对比分析[J].电机与控制学报,2011(1):52-55.GAO Youhua,WANG Erzhi,YIN Xiaofang.Comparison and analysis between test and numerical simulation of VF-TO[J].Electric Machine and Control,2011(1):52-55.
[7]田荟,吴细秀,张欢.VFTO计算中隔离开关燃弧模型探究[J].高压电器,2013,49(5):106-113.TIAN Hui,WU Xixiu,ZHANG Huan.Review on the arcing model for disconnectors in the calculation of VFTO[J].High Voltage Apparatus,2013,49(5):106-113.
[8]孟涛,林莘,徐建源.分段电弧模型下VFTO的计算与分析[J].电工技术学报,2010,25(9):69-73.MENG Tao,LIN Shen,XU Jianyuan.Calculation of VFTOon the condition of segmental arcing model[J].Transactions of China Electrotechnical Society,2010,25(9):69-73.
[9]林莘,王娜,徐建源.动态电弧模型下特快速瞬态过电压特性的计算与分析[J].中国电机工程学报,2012,32(16):157-164.LIN Shen,WANG Na,XU Jianyuan.Calculation and analysis of very fast transient over-voltage characteristic on the condition of dynamic arcing model[J].Proceedings of the CSEE,2012,32(16):157-164.
[10]张雪.GIS设备VFTO仿真中隔离开关电弧模型的研究[D].北京:华北电力大学:北京华北电力大学,2010.
[11]李爽.GIS中DS操作产生的电磁暂态问题及其影响研究[D].沈阳:沈阳工业大学,2011.
[12]张建功,王红超,赵军,等.基于分段电弧模型的多次重燃弧VFTO计算与分析[J].高压电器,2016,52(5):14-19.ZHANG Jiangong,WANG Hongchao,ZHAO Jun,et al.Calculation and analysis of multiple restrikes VFTO based on piecewise arc model[J].High Voltage Apparatus,2016,52(5):14-19.
[13]万亦如,杜鹃,刘庄.隔离开关多次重燃的VFTO计算模型[J].浙江电力,2014(2):22-25.WAN Yiru,DU Juan,LIU Zhuang.VFTO calculation model for multiple restrikes of disconnecting switches[J].Zhejiang Electric Power,2014(2):22-25.
[14]RIECHERT U,NEUMANN C,HAMA H,et al.Very fast transient overvoltage(VFTO)in gas-insulated UHV substations[R].CIGRE Advisory Group Report,paris,2010.
[15]张建功,赵军,谢鹏康,等.VFTO作用下电子式电流互感器二次端口电磁特性仿真分析[J].电工技术学报,2015,30(z2):88-94.ZHANG Jiangong,ZHAO Jun,XIE Pengkang,et al.Simulation and analysis of electromagnetic properties at the secondary port of electronic current transformers under very fast transient overvoltage[J].Transactions of China Electrotechnical Society,2015,30(z2):88-94.199
[16]陈维江,颜湘莲,王绍武,等.气体绝缘开关设备中特快速瞬态过电压研究的新进展[J].中国电机工程学报,2011,31(31):1-11.CHEN Weijiang,YAN Xianglian,WANG Shaowu,et al.Recent progress in investigations on very fast transient overvoltage in gas insulated switchgear[J].Proceedings of the CSEE,2011,31(31):1-11.
[17]IKEBE K,SHIMOMURA T.Simulation technology for1 000 k V power systems[J].Mitsubishi Electric Advance,1996,77(12):238-324.
[18]岳功昌,刘卫东,陈维江,等.气体绝缘开关设备中特快速瞬态过电压的全过程测量方法[J].中国电机工程学报,2011,31(31):18-27.YUE Gongchang,LIU Weidong,CHEN Weijiang,et al.Measurement methods of very fast transient overvoltage in gas insulated switchgear with complete process[J].Proceedings of the CSEE,2011,31(31):18-27.
[19]王磊,陈维江,岳功昌,等.特高压气体绝缘开关设备的隔离开关残余电荷电压仿真分析[J].高电压技术,2014,40(12):3911-3917.WANG Lei,CHEN Weijiang,YUE Gongchang,et al.Simulation analysis of potential caused by trapped charge in disconnector of UHV GIS device[J].High Voltage Apparatus,2014,40(12):3911-3917.
[20]王娜,林莘,徐建源,等.GIS中隔离开关电弧模型对快速暂态过电压的影响[J].电工电能新技术,2013,32(1):85-88.WANG Na,LIN Shen,XU Jianyuan,et al.Influence of arcing model of GIS switching to VFTO[J].Advanced Technology of Electrical Engineering and Energy,2013,32(1):85-88.