交流滤波器差动保护的研究  

Research on AC Filter Differential Protection

作　　者：冯建波 张玉宝 江修博 

机构地区：[1]许继电气股份有限公司,河南许昌461000

出　　处：《河南科技》2016年第5期132-135,共4页Henan Science and Technology

摘　　要：本文根据直流输电中交流滤波器自身的特点,提出一种有别于常规差动的差动动作判据,阐述了该差动保护的计算整定,并分析此判据下交流滤波器在各种故障下差动保护的动作行为。同时,辅以南方电网在许继集团的交流滤波器保护装置RTDS试验中的数据和波形为佐证。综合分析后得出,该差动保护判据可以很好地应用于直流输电中的交流滤波器差动保护。This paper put forward a new differential criterion, which is different from the traditional differen-tial protection according to the characteristics of AC filter in HVDC System, discussed the calculating set-tings of AG filter differential protection, analyzed the action of AC filter differential protection under this cri-terion when various fault occurred, and used the data and wave shape from XUJI GROUPS AG filter protec - tive device-RTDS in CSG’s project as an evidence. In summary, the new criterion could apply properly to the AC filter differential protection in HVDC system.

关 键 词：直流输电 交流滤波器 制动电流 比率制动系数 单相接地 RTDS 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM773