电力系统保护与控制2012，Vol.40Issue(15)：46-51,6.
糯扎渡送电广东特高压直流输电工程直流滤波器C1不平衡保护研究
Study of DC filter C1 unbalance protection for Nuozhadu-Guangdong ultra HVDC transmission project
黄金海 1冯雷 1李曼丽 2吴庆范1
作者信息
- 1. 许继电气股份有限公司,河南许昌461000
- 2. 江西电力科学研究院,江西南昌330096
- 折叠
摘要
Abstract
DC filter is an important part of HVDC transmission system. The high voltage capacitor Cl has high fault rate in DC filter. In order to detect the fault of the internal components of the high voltage capacitor unit, we configure unbalanced protection to reflect the damage of capacitance components. This paper studies the fault mechanism of high voltage capacitor and fault characteristics in depth. The principle and scheme of Cl unbalance protection for Nuozhadu-Guangdong UHVDC transmission project are proposed and the calculation method of Cl unbalance protection setting value is given. The protection scheme is tested in the RTDS real time simulation system, and experiment results show that it can protect high voltage capacitor effectively, and identify the unit fault of the high voltage capacitor accurately and reliably.关键词
特高压直流输电/直流滤波器/不平衡保护/RTDS 仿真Key words
UHVDC/DC filter/unbalanced protection/RTDS simulation分类
信息技术与安全科学引用本文复制引用
黄金海,冯雷,李曼丽,吴庆范..糯扎渡送电广东特高压直流输电工程直流滤波器C1不平衡保护研究[J].电力系统保护与控制,2012,40(15):46-51,6.
