Transmission Line Protection Using Decaying DC Information in Fault Current

被引：1
|
作者：
Jena, Soumitri [1 ]
Pradhan, Ashok Kumar [2 ]
机构：
[1] SUNY Stony Brook, Dept Elect & Comp Engn, Stony Brook, NY 11794 USA
[2] Indian Inst Technol, Dept Elect Engn, Kharagpur 712302, India
来源：
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS | 2023年 / 19卷 / 07期
关键词：
Decaying DC; fault analysis; fault direction; least error square (LES); line protection; WAVELET TRANSFORM;
D O I：
10.1109/TII.2022.3218628
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Today use of fast and reliable transmission line protection is of importance. This article presents two protection techniques for transmission lines using information obtained from the decaying dc component of fault current and the prefault voltage signal. The fault direction is obtained using the polarities of prefault voltage and decaying dc of fault current. Internal faults in the transmission lines are detected with exchange of information on the decaying dc currents at both ends. The protection decisions are derived within a quarter cycle with a signal sampling rate of 4 kHz. Upon testing on a 400-kV simulated transmission system for different fault types, resistances, inception angles, and field data from a 400-kV line, the proposed techniques are found to be accurate.
引用
收藏
页码：8452 / 8461
页数：10
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