| 一起高压输电线路直流融冰感应过电压分析 |
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| 引用本文： | 曾华荣,张迅,吕黔苏,傅闯. 一起高压输电线路直流融冰感应过电压分析[J]. 南方电网技术, 2011, 5(4): 78-80 |
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| 作者姓名： | 曾华荣 张迅 吕黔苏 傅闯 |
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| 作者单位： | 1. 贵州电力试验研究院,贵阳,550002
2. 南方电网科学研究院,广州,510080 |
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| 摘 要： | 针对500 kV鸭渓—福泉Ⅱ回输电线路的直流融冰遇到的感应过电压问题,进行了理论计算和实测,结论为:此感应过电压是由于并行运行的输电线路的感应电压扰动导致了融冰线路的过电压保护间隙击穿放电所致,可通过变更直流融冰方式或根据整流装置的参数调整间隙距离来解决。
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| 关 键 词： | 直流融冰 感应过电压 并行输电线路 融冰方式 保护间隙 |
Case Analysis of Inductive Over-Voltage Occurred on a HV Transmission Line During DC De-Icing |
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| ZENG Huarong,ZHANG Xun,Lü Qiansu,FU Chuang. Case Analysis of Inductive Over-Voltage Occurred on a HV Transmission Line During DC De-Icing[J]. Southern Power System Technology, 2011, 5(4): 78-80 |
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| Authors: | ZENG Huarong ZHANG Xun Lü Qiansu FU Chuang |
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| Affiliation: | Guizhou Electric Power Research Institute, Guiyang 550002, China;Guizhou Electric Power Research Institute, Guiyang 550002, China;Guizhou Electric Power Research Institute, Guiyang 550002, China;Electric Power Research Institute, CSG, Guangzhou 510080, China |
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| Abstract: | Aiming at the problem of inductive over-voltage occurred on 500 kV Yaxi-Fuquan Transmission Line Ⅱ during DC de-icing,this paper does theoretical calculation and actual tests,resulting in a conclusion that this inductive over-voltage is caused by the disruptive discharge of the over-voltage protection gap on the DC de-icing line due to the inductive voltage perturbation of parallel-operating transmission lines,and it can be overcome in a way to change the de-icing method,or to adjust the gap distance settings of the rectifier device. |
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| Keywords: | DC de-ice inductive voltage across parallel transmission lines ice melting method protection gap |
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