中国电力2017，Vol.50Issue(12)：33-37,43,6.DOI:10.11930/j.issn.1004-9649.201711222
上电调相机内部故障分析及主保护配置方案优化设计
Internal Fault Analysis and Optimization Design of Main Protection Scheme for Shanghai Electric Phase Modifier
摘要
Abstract
Due to the possible stator winding inter-turn short circuit in large phase modifiers,there will be seriously potential risk for the safe operation of the phase modifier without inter-turn short circuit protection.Internal fault analysis and main protection configuration scheme optimization design of a 300 Mvar phase modifier manufactured by Shanghai Electric are carried out with the multi-loop method.The analysis showed that different main protection configuration schemes should be chosen for different outgoing modes of the phase modifier neutral point.Compared with the neutral point outgoing mode and main protection scheme based on the traditional electromagnetic current transformer,the split-phase transverse differential protection based on FOCT will completely change the current status of large turbo-generator without stator winding inter-turn short circuit protection and has little influence on generator design and manufacture,thus providing the high quality guarantee for the safe operation of the generator.关键词
大型调相机/匝间短路/内部故障分析/裂相横差保护/光学电流互感器Key words
large phase modifier/inter-turn short circuit/internal fault analysis/split-phase transverse differential protection/flexible optical current transformer分类
信息技术与安全科学引用本文复制引用
桂林,赵斌超,王光,王祥珩,王维俭..上电调相机内部故障分析及主保护配置方案优化设计[J].中国电力,2017,50(12):33-37,43,6.基金项目
国家自然科学基金资助项目(50707014,51277103)This work is supported by National Natural Science Fund (No.50707014,No.51277103). （50707014,51277103）
