摘要
为迅速准确地选择出高压输电故障线路和故障相别、保证继电保护装置正确动作、有选择地切除故障相,基于灰色系统理论中的灰色关联分析,提出一种新的关联度———向量关联度用于故障定位中的判相。利用 MAT- LAB程序计算了现场实际故障波形与RTDS(实时数据仿真系统)采集到的 10 种标准故障波形的向量关联度系数。结果表明,通过比较关联度系数的大小可得出正确的故障类型及相别。同时该方法不受过渡电阻和系统运行方式的影响,且实验的重复性好、准确度高。
It is important to detect the fault phase in fault location, in this paper; a new method to detect the fault phase by the gray vector relational analysis is presented, the actual fault data of transmission line is compared with all kinds of fault types got by RTDS (REAL Time Digital Simulation), at last the type of fault-phase is found. The result is accuracy, so the method is feasible. Comparison is made between common gray relational analysis and vector gray relational analysis, the latter is better and simple.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2005年第3期12-14,共3页
High Voltage Engineering
关键词
灰色向量关联度
判相
故障定位
Gray Vector Relational Analysis
detection of the typ e of fault-phase
fault location
