±800 kV云广直流输电系统串联双阀组换流变分接开关125℃闭锁调整分析及处理
Analysis and Dispose of Converter Transformer OLTC 125°C Blocking in Series Dual Groups of Yunnan-Guangdong ±800 kV DC Transmission Project
作者: 陈灿旭 * , 刘茂涛 , 宋述波 ：中国南方电网超高压输电公司广州局，广州; 张志朝 ：中国南方电网超高压输电公司，广州;
关键词: 特高压直流工程； 换流变分接开关； 125℃闭锁调整； UHVDC Project； OLTC of Converter Transformer； 125°C Blocking
摘要:
南方电网所有直流输电系统中，±800 kV云广特高压直流首次使用了真空有载分接开关，本文首先介绍真空有载分接开关的工作过程，然后总结分析了云广±800 kV直流输电工程中换流变分接开关125℃闭锁调整的原因，对其存在的风险进行深入剖析，最后提出有效的处理措施，降低云广特高压直流输电系统闭锁的风险。
Abstract: Yunnan-Guangdong ±800 kV DC transmission project is the first project which uses vacuum on-load tap- changer in all DC transmission projects of CSG. The paper introduces the operation of vacuum on-load tap-changer firstly, then summarizes and analyzes the cause of converter transformer OLTC 125°C blocking in Yunnan-Guangdong ±800 kV DC transmission project, and analyzes its risk thoroughly, at last, some effective measures which can depress the risk of blocking both pole in Yunnan-Guangdong ±800 kV DC transmission project are given.
Abstract: Yunnan-Guangdong ±800 kV DC transmission project is the first project which uses vacuum on-load tap- changer in all DC transmission projects of CSG. The paper introduces the operation of vacuum on-load tap-changer firstly, then summarizes and analyzes the cause of converter transformer OLTC 125°C blocking in Yunnan-Guangdong ±800 kV DC transmission project, and analyzes its risk thoroughly, at last, some effective measures which can depress the risk of blocking both pole in Yunnan-Guangdong ±800 kV DC transmission project are given.
文章引用: 陈灿旭 , 刘茂涛 , 张志朝 , 宋述波 (2013) ±800 kV云广直流输电系统串联双阀组换流变分接开关125℃闭锁调整分析及处理。 智能电网， 3， 22-27. doi: 10.12677/SG.2013.31004
参考文献
[1] 袁清云. 特高压直流输电技术现状及在我国的应用前景[J]. 电网技术, 2005, 29(14): 1-3.
[2] 陈潜, 张尧, 钟庆等. ±800 kV特高压直流输电系统运行方式的仿真研究[J]. 继电器, 2007, 35(16): 27-32.
[3] 吴俊, 周剑, 苏寅生等. 云广±800 kV直流双极运行模式研究[J]. 南方电网技术, 2010, 4(4): 28-31.
[4] 张爱玲, 刘涛, 李少华. 云广特高压工程紧急停运及旁路开关操作控制策略研究[J]. 电力系统保护与控制, 2011, 39(13): 121-125.
[5] 王瑶. 特高压直流输电控制与保护技术的研究[J]. 电力系统保护与控制, 2009, 37(15): 53-58.
[6] 浙江大学直流输电科研组. 直流输电[M]. 北京: 水利电力出版社, 1985: 120-135.