摘要
文章叙述了新开发的水轮发电机定子绕组内部故障电量计算与保护方案分析系统，该系统能方便地对任意尺寸、槽数、极对数、绕组形式以及不同中性点连接方式的大型水轮发电机进行各种内部故障（如匝间短路、支路间短路、开焊故障等）进行稳态电量的计算，同时能对内部故障保护方案如单元件横差、不完全差动、裂相横差等保护的灵敏度进行分析校核，并能给出保护方案的最佳ＣＴ组合。该系统可广泛应用于大型水轮发电机定子绕组内部故障分析与保护方案研究等场合。
A system for steady state performance calculation and protection scheme analysis of internal armature winding fault in hydro generator is presented in this paper. It can deal with various internal faults of large hydro generators with different dimensions, slot and pole numbers, winding types and winding neutrals arrangement. It can also analyze protection schemes such as differential protections and give their optimum CT combinations. This system can be widely applied to analysis and protection of internal faults in armature windings of the hydro generator.
出处
《电网技术》
EI
CSCD
北大核心
1999年第8期39-43,共5页
Power System Technology
基金
国家教育委员会博士点基金
关键词
水轮发电机
定子绕组
故障
电气量计算
generator
internal fault
protection scheme
multi loop theory
finite element method
