Effects of Un-transposed UHV Transmission Line on Fault Analysis of Power Systems
The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are symmetrical in case of fault. The errors caused by the method with the symmetrical distributed parameter circuit model as the equivalent circuit of t...
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| Published in | Transactions of Tianjin University Vol. 14; no. 3; pp. 231 - 234 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Heidelberg
Tianjin University
01.06.2008
School of Electrical Engineering, Shandong University, Jinan 250061, China |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1006-4982 1995-8196 |
| DOI | 10.1007/s12209-008-0042-6 |
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| Abstract | The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are symmetrical in case of fault. The errors caused by the method with the symmetrical distributed parameter circuit model as the equivalent circuit of the un-transposed ultra high voltage（UHV） transmission line were studied under both normal operation and fault,and the corresponding problems arising were pointed out. By contrast with electromagnetic transient and power electronics（EMTPE） simulation results with the asymmetrical distributed parameter circuit model of un-transposed line, it is shown that the conventional method cannot show the existence of negative and zero sequences before fault happening and there are many errors on voltage and current after fault happening which are different with fault types. The error ranges of voltage and current are 2.13%— -81.13% and -7.82%— -86.15%, respectively. |
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| AbstractList | The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are symmetrical in case of fault. The errors caused by the method with the symmetrical distributed parameter circuit model as the equivalent circuit of the un-transposed ultra high voltage(UHV) transmission line were studied under both normal operation and fault, and the corresponding problems arising were pointed out. By contrast with electromagnetic transient and power electronics(EMTPE) simulation results with the asymmetrical distributed parameter circuit model of un-transposed line, it is shown that the conventional method cannot show the existence of negative and zero sequences before fault happening and there are many errors on voltage and current after fault happening which are different with fault types. The error ranges of voltage and current are 2.13%-81.13% and -7.82%- -86.15%, respectively. TM7; The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are symmetrical in case of fault. The errors caused by the method with the symmetrical distributed parameter circuit model as the equivalent circuit of the un-transposed ultra high voltage (UHV) transmission line were studied under both normal operation and fault, and the corresponding problems arising were pointed out. By contrast with electromagnetic transient and power electronics (EMTPE) simulation results with the asymmetrical distributed parameter circuit model of un-transposed line, it is shown that the conventional method cannot show the existence of negative and zero sequences before fault happening and there are many errors on voltage and current after fault happening which are different with fault types. The error ranges of voltage and current are 2.13%-81.13% and -7.82%-86.15%, respectively. The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are symmetrical in case of fault. The errors caused by the method with the symmetrical distributed parameter circuit model as the equivalent circuit of the un-transposed ultra high voltage(UHV) transmission line were studied under both normal operation and fault, and the corresponding problems arising were pointed out. By contrast with electromagnetic transient and power electronics(EMTPE) simulation results with the asymmetrical distributed parameter circuit model of un-transposed line, it is shown that the conventional method cannot show the existence of negative and zero sequences before fault happening and there are many errors on voltage and current after fault happening which are different with fault types. The error ranges of voltage and current are 2.13%–81.13% and −7.82%– −86.15%, respectively. The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are symmetrical in case of fault. The errors caused by the method with the symmetrical distributed parameter circuit model as the equivalent circuit of the un-transposed ultra high voltage（UHV） transmission line were studied under both normal operation and fault,and the corresponding problems arising were pointed out. By contrast with electromagnetic transient and power electronics（EMTPE） simulation results with the asymmetrical distributed parameter circuit model of un-transposed line, it is shown that the conventional method cannot show the existence of negative and zero sequences before fault happening and there are many errors on voltage and current after fault happening which are different with fault types. The error ranges of voltage and current are 2.13%— -81.13% and -7.82%— -86.15%, respectively. |
| Author | 王安宁 陈青 周占平 |
| AuthorAffiliation | School of Electrical Engineering, Shandong University, Jinan 250061, China |
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| Keywords | EMTPE fault calculation un-transposed UHV transmission line simulation |
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| References | AdibiM. M.MilaniczD. P.VolkmannT. L.Asymmetry issues in power system restoration[J]IEEE Trans on Power Systems19991431085109110.1109/59.780930 Shu Yinbiao. Development foreground and critical technology of UHV transmission engineering in China [C]. In: Seminar on UHV Transmission Technology. Weihai, China, 2006(in Chinese). LinJ.ChenZ.WangX.EMTP/EMTPE Manual[M]2001BeijingChina Power Technology Academy516 ShuY.The research and application of 1 000 kV ultra-HVAC transmission technology[J]Power System Technology200529191602167706 Zhang Changhao, Li Zhu, Wu Xing. UHV: Stand on the New Jumping-off Point-Record of China UHV Grid Development[N]. State Network Newspaper, Aug. 20th, 2006(in Chinese). WanQ.YangY.ZhaoG.An UHV test line[J]High Voltage Engineering199723179 AndersonP. M.Analysis of Faulted Power Systems [M]1995New YorkIEEE Press3766 Zhong S, Abur A. Effects of non-transposed lines and unbalanced loads on state estimation[C]. In: Proc 2002 IEEE Power Engineering Society Winter Meeting. New York, 2002. 975–979. DuncanG. J.Sarma MulukutlaS.Power System Analysis and Design[M]20013New YorkThomson-Engineering Publisher356 LiuZ.UHV Grid[M]2005BeijingChina Economic Publishing House2735 42_CR8 Q. Wan (42_CR9) 1997; 23 J. Lin (42_CR10) 2001 P. M. Anderson (42_CR1) 1995 G. J. Duncan (42_CR2) 2001 Z. Liu (42_CR7) 2005 42_CR4 42_CR5 M. M. Adibi (42_CR3) 1999; 14 Y. Shu (42_CR6) 2005; 29 |
| References_xml | – reference: LinJ.ChenZ.WangX.EMTP/EMTPE Manual[M]2001BeijingChina Power Technology Academy516 – reference: AndersonP. M.Analysis of Faulted Power Systems [M]1995New YorkIEEE Press3766 – reference: DuncanG. J.Sarma MulukutlaS.Power System Analysis and Design[M]20013New YorkThomson-Engineering Publisher356 – reference: ShuY.The research and application of 1 000 kV ultra-HVAC transmission technology[J]Power System Technology200529191602167706 – reference: Zhong S, Abur A. Effects of non-transposed lines and unbalanced loads on state estimation[C]. In: Proc 2002 IEEE Power Engineering Society Winter Meeting. New York, 2002. 975–979. – reference: Shu Yinbiao. Development foreground and critical technology of UHV transmission engineering in China [C]. In: Seminar on UHV Transmission Technology. Weihai, China, 2006(in Chinese). – reference: LiuZ.UHV Grid[M]2005BeijingChina Economic Publishing House2735 – reference: Zhang Changhao, Li Zhu, Wu Xing. UHV: Stand on the New Jumping-off Point-Record of China UHV Grid Development[N]. State Network Newspaper, Aug. 20th, 2006(in Chinese). – reference: WanQ.YangY.ZhaoG.An UHV test line[J]High Voltage Engineering199723179 – reference: AdibiM. M.MilaniczD. P.VolkmannT. L.Asymmetry issues in power system restoration[J]IEEE Trans on Power Systems19991431085109110.1109/59.780930 – start-page: 356 volume-title: Power System Analysis and Design[M] year: 2001 ident: 42_CR2 – ident: 42_CR4 – ident: 42_CR5 – start-page: 37 volume-title: Analysis of Faulted Power Systems [M] year: 1995 ident: 42_CR1 – volume: 29 start-page: 1 issue: 19 year: 2005 ident: 42_CR6 publication-title: Power System Technology – ident: 42_CR8 – start-page: 5 volume-title: EMTP/EMTPE Manual[M] year: 2001 ident: 42_CR10 – start-page: 27 volume-title: UHV Grid[M] year: 2005 ident: 42_CR7 – volume: 23 start-page: 7 issue: 1 year: 1997 ident: 42_CR9 publication-title: High Voltage Engineering – volume: 14 start-page: 1085 issue: 3 year: 1999 ident: 42_CR3 publication-title: IEEE Trans on Power Systems doi: 10.1109/59.780930 |
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| Snippet | The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are... TM7; The conventional fault analysis method based on symmetrical components supposes that the three-phase parameters of un-transposed transmission line are... |
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| SubjectTerms | Engineering Humanities and Social Sciences Mechanical Engineering multidisciplinary Science 故障分析 故障计算 电力系统 超高压传输线 |
| Title | Effects of Un-transposed UHV Transmission Line on Fault Analysis of Power Systems |
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