电力系统保护与控制2011，Vol.39Issue(19)：94-99,6.
基于后向预测Prony算法的超高压输电线路故障选相方案
EHV transmission line faulty phase selection scheme based on backward Prony algorithm
杨明玉 1杨玉坤2
作者信息
- 1. 华北电力大学电力系统保护与动态安全监控教育部重点实验室,河北保定071003
- 2. 吉林省电力勘测设计院,吉林长春130022
- 折叠
摘要
Abstract
Component analysis of EHV transmission line fault transient signals based on distributed parameter shows that the amplitude and the frequency of high frequency transient current signals after fault can reliably distinguish various fault types. So a faulty phase selection scheme based on high frequency transient current signals after fault is proposed. In this scheme, backward Porny algorithm and QR decomposition are employed, which makes the extraction of HF component more accurate and fast. A large number of ATP simulation results show that the proposed scheme can distinguish different fault types fast and correctly and it is not affected by transition resistances, inception angles, and load current.关键词
输电线路/故障选相/Prony/暂态量保护Key words
transmission line/ faulty phase selection/ Prony/ transient-based protection分类
信息技术与安全科学引用本文复制引用
杨明玉,杨玉坤..基于后向预测Prony算法的超高压输电线路故障选相方案[J].电力系统保护与控制,2011,39(19):94-99,6.
