| 高肇直流接地极过电压保护误动原因分析及解决方案 |
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| 引用本文： | 卢世才,张楠,蔡永梁.高肇直流接地极过电压保护误动原因分析及解决方案[J].南方电网技术,2010,4(1):103-105. |
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| 作者姓名： | 卢世才 张楠 蔡永梁 |
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| 作者单位： | 1. 中国南方电网超高压输电公司贵阳局,贵阳,550003
2. 中国南方电网超高压输电公司检修试验中心,广州,510620 |
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| 摘 要： | 分析2007年4月2日高肇直流高坡换流站发生的接地极过电压保护(59EL)误动作事件的原因,提出了相应的解决方案:将中性母线断路器在分位时将接地极过电压保护动作延时设置为12s,直流站控软件部分满足原有的联锁逻辑时,允许拉开高压母线隔离开关。此方案的有效性获得RTDS仿真证实。
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| 关 键 词： | 直流输电 接地极过电压保护 RTDS仿真 |
| 收稿时间： | 2009/1/16 0:00:00 |
Analysis and Solution of Electrode Overvoltage Protection Misoperation of the Guizhou-Guangdong HVDC Transmission System |
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| LU Shicai,ZHANG Nan and CAI Yongliang.Analysis and Solution of Electrode Overvoltage Protection Misoperation of the Guizhou-Guangdong HVDC Transmission System[J].Southern Power System Technology,2010,4(1):103-105. |
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| Authors: | LU Shicai ZHANG Nan and CAI Yongliang |
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| Affiliation: | Guiyang Bureau, CSG EHV Power Transmission Company, Guiyang 550003, China;;CSG EHV Power Transmission Company, Guangzhou 510620, China);CSG EHV Power Transmission Company, Guangzhou 510620, China) |
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| Abstract: | The cause of the event of electrode overvoltage protection (59EL) misoperation in Gaopo Converter Station of the Guizhou-Guangdong HVDC Transmission System, April 2, 2007, is analyzed, and a corresponding solution is given as follows: to set the delay time of electrode overvoltage protection with 12 s, and to allow the HV bus switch to open when the DC station control software meets the original interlocked logic. The validity of the solution is proved by RTDS simulation. |
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| Keywords: | HVDC electrode overvoltage protection RTDS simulation |
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