Postfault analysis of operation of distance protective relays of power transmission lines

被引：24

作者：

Izykowski, Jan ^{[1
]}

Rosolowski, Eugeniusz

Saha, Murari Mohan

机构：

[1] Wroclaw Tech Univ, PL-50370 Wroclaw, Poland

[2] ABB, SE-72159 Vasteras, Sweden

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2007年 / 22卷 / 01期

关键词：

algorithms; distance protection; fault analysis; power transmission line; simulation; two-end measurement;

D O I：

10.1109/TPWRD.2006.877084

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper deals with the postfault analysis of the operation of distance protective relays from the line terminals. The signals of the digital distance relays are processed in the offline regime with the aim of evaluating the particular relay operation case. First, the program enables imitating the fault-loop impedance measurements of the distance relays. Second, the two-end unsynchronized measurements of the relays are considered. The unknown synchronization angle is determined by using the developed noniterative procedure. Then, the distance to fault is calculated. It is applied for calculating the actual values of impedance for the line sections. Comparing the results of these two ways performs analysis of operation of the relays under resistive fault cases. The described postfault analysis algorithm has been tested with the fault data obtained from versatile Alternative Transients Program-Electromagnetic Transients Program simulations. The examples are reported and discussed.

引用

页码：74 / 81

页数：8

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