| 直流线路纵联差动保护的相关问题 |
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| 引用本文： | 周红阳,余江,黄佳胤,赵曼勇.直流线路纵联差动保护的相关问题[J].南方电网技术,2008,2(3):17-20. |
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| 作者姓名： | 周红阳 余江 黄佳胤 赵曼勇 |
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| 作者单位： | 中国南方电网电力调度通信中心,广州,510623 |
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| 摘 要： | 介绍交、直流线路差动保护原理，分析了天广、高肇直流的运行中直流线路纵联差动保护的几类典型动作情况，并针对运行中出现的问题提出了改进建议。所提出的直流线路纵联差动保护采用独立保护通道的提议已用于新建的兴安直流工程。
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| 关 键 词： | 直流输电 差动保护 保护通道 灵敏度 |
| 收稿时间： | 2008/1/22 0:00:00 |
Issues over DC Line Differential Protection |
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| ZHOU Hong-yang,YU Jiang,HUANG Jia-yin and ZHAO Man-yong.Issues over DC Line Differential Protection[J].Southern Power System Technology,2008,2(3):17-20. |
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| Authors: | ZHOU Hong-yang YU Jiang HUANG Jia-yin and ZHAO Man-yong |
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| Affiliation: | CSG Power Dispatching & Communication Center;CSG Power Dispatching & Communication Center;CSG Power Dispatching & Communication Center;CSG Power Dispatching & Communication Center |
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| Abstract: | Introducing the principle of differential protection for AC/DC lines and summarizing the typical cases of DC line differential protection (87DCLL) operation, this paper proposes measures to improve the DC line differential protection. The proposal to use independent channel for 87DCLL has been accepted in the newly-built GG2 project. |
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| Keywords: | HVDC differential protection protection channel sensitivity |
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