| 基于ATP-EMTP的±500kV直流线路雷击事故仿真分析(英文) |
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| 引用本文： | 伏进,司马文霞,杨庆.基于ATP-EMTP的±500kV直流线路雷击事故仿真分析(英文)[J].高电压技术,2009,35(4):802-808. |
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| 作者姓名： | 伏进 司马文霞 杨庆 |
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| 作者单位： | State;Laboratory;Power;Transmission;Equipment;System;Security;Technology;Chongqing;University;Yangjiaping;Supply;Bureau; |
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| 摘 要： | This paper calculates and researches on lightning accident of ±500 kV Xing-An DC transmission line in Guangdong based on ATP-EMTP and the simulation calculation model of the HVDC has been constructed. The results show that: when a lightning current strikes to the positive polar conductor of double circuit transmission line and the flashover of insulator strings occurs, as the over-voltage wave propagating along the lines due to the coupling effect between the conductors, the grounding electrode lines would produce the coupling voltage wave, which makes the flashover of the insulator strings occur at the different place along the grounding electrode lines, the unbalanced current of the grounding polar line is produced due to the insulator strings flashover and the unbalanced current exists for a long time, when the unbalanced current is up to the locking condition, the negative polar conductor is locked and the double-pole block fault occurs. In the paper, some effective measures are given to prevent this accident.
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| 关 键 词： | DC transmission line ATP-EMTP insulator strings grounding electrode lines unbalanced current locking condition over-voltage |
Simulation Analysis on Lightning Accident of ±500 kV DC Transmission Line Based on ATP-EMTP |
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| FU Jin,SIMA Wen-xia,YANG Qing,YANG Li-bin,LI Zhi-tai.Simulation Analysis on Lightning Accident of ±500 kV DC Transmission Line Based on ATP-EMTP[J].High Voltage Engineering,2009,35(4):802-808. |
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| Authors: | FU Jin SIMA Wen-xia YANG Qing YANG Li-bin LI Zhi-tai |
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| Affiliation: | 1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology;Chongqing University;Chongqing 400044;China;2. Yangjiaping Power Supply Bureau;Chongqing 400051;3. Guangdong Electric Power Design Institute;Guangzhou 510600;China |
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| Abstract: | This paper calculates and researches on lightning accident of ±500 kV Xing-An DC transmission line in Guangdong based on ATP-EMTP and the simulation calculation model of the HVDC has been constructed. The re- sults show that: when a lightning current strikes to the positive polar conductor of double circuit transmission line and the flashover of insulator strings occurs, as the over-voltage wave propagating along the lines due to the cou- pling effect between the conductors, the grounding electrode lines would produce the coupling voltage wave, which makes the flashover of the insulator strings occur at the different place along the grounding electrode lines, the un- balanced current of the grounding polar line is produced due to the insulator strings flashover and the unbalanced current exists for a long time, when the unbalanced current is up to the locking condition, the negative polar conduc- tor is locked and the double-pole block fault occurs. In the paper, some effective measures are given to prevent this accident. |
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| Keywords: | DC transmission line ATP-EMTP insulator strings grounding electrode lines unbalanced current locking condition over-voltage |
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