新型标积制动式差动保护的分析研究  

RESEARCH ON NEW SCALAR PRODUCT RESTRAINT DIFFERENTIAL PROTECTION

作　　者：桂林[1] 王祥珩[1] 王维俭[1] 

机构地区：[1]清华大学电机系,北京100084

出　　处：《电力系统自动化》2001年第22期15-21,共7页Automation of Electric Power Systems

摘　　要：对二滩电站所采用 ABB公司的新型标积制动式差动保护方案展开初步的分析研究 ,在充分肯定其突出优点的同时 ,指出若将 B值固定取为 1 .5 ,将导致三峡电站发电机组在采用该保护方案时会出现某些内部故障保护拒动现象 ,并提出相应的解决措施。这种新型保护方案值得进一步分析、研究和推广。The paper involves an investigation on the novel ABB scalar product restraint differential protection equipment applied in Ertan Hydropower Station.The advantages of the equipmentare fully stressed,while possible refusal operations of the protection scheme used in Three Gorges Power Station under certain internal faults are pointed out,with the variable B set to 1.5 . The solving methods are then suggested. Further analysis,study and application of the novel protection schem e will be desirable in the future.

关 键 词：继电保护 传统比率制动 标识制动式差动保护 电力系统 

分 类 号：TM772[电气工程—电力系统及自动化]