Adaptive relays for overhead line protection

被引：10

作者：

Calderaro, V. ^{[1
]}

Galdi, V. ^{[1
]}

Piccolo, A. ^{[1
]}

Siano, P. ^{[1
]}

机构：

[1] Univ Salerno, Dept Informat & Elect Engn, I-84084 Salerno, Italy

来源：

ELECTRIC POWER SYSTEMS RESEARCH | 2007年 / 77卷 / 12期

关键词：

protection system; overhead line; adaptive relay; TRANSMISSION-LINES;

D O I：

10.1016/j.epsr.2006.11.001

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：

In the liberalized energy market scenario protective relays play an important role in assuring continuous service in the power system where a malfunctioning could lead to serious damages to a wide number of operators having access to the power system. Considering that power lines are operated many times below a rated load current, in this paper an adaptive procedure is presented in order to manage power distribution systems according to dependability or security requirements. In particular, a procedure to obtain an inverse time trip curve by means of a microprocessor, connected to a relay. is presented. The procedure adapts the trip characteristic depending on the conductor temperature, wind speed, emissivity and solar absorbity and is implemented on a microprocessor Rabbit 2200 considering a Drake conductor, 795 kcmil 26/7 ACSR. (C) 2006 Published by Elsevier B.V.

引用

页码：1552 / 1559

页数：8

共 19 条

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