抽水蓄能机组工况运行对发变组保护的影响  

Influence of Working Modes of Pumped Storage Unit on Generator-transformer Protection

作　　者：张兵海[1] 王献志[1] 张立[1] 李晓文 

机构地区：[1]河北省电力研究院,河北省石家庄市050021 [2]张河湾抽水蓄能有限责任公司,河北省石家庄市050041

出　　处：《水电自动化与大坝监测》2008年第6期40-44,共5页HYDROPOWER AUTOMATION AND DAM MONITORING

摘　　要：抽水蓄能机组一般有10多种运行工况,不同的工况对发变组保护的要求也不同。文中通过对不同工况的分析,对相关联的几种特殊发变组保护进行了分析探讨,对发电机开关失灵保护、相序保护、差动保护进行了分析,指出了保护盲区的补救措施;对工况的取用形式进行了分析,提出了对工况组合进行优化设置的观点,并探讨了不同工况下保护开放/闭锁逻辑的重要性。Normally, there are more than ten working modes of a pumped storage unit, and each mode demands different protections. Some related special generator-transformer protection is discussed for each working mode. The GCB failure protection, sequence protection, and differential protection are analyzed, and remedial measures for protection blank are proposed. The configuration and optimization of the working modes are expatiated. The importance of the protection release/ block logic is discussed.

关 键 词：抽水蓄能机组 发变组 工况 继电保护 

分 类 号：TV743[水利工程—水利水电工程] TM772[电气工程—电力系统及自动化]