An adaptive overcurrent protection system applied to distribution systems

被引：31
|
作者：
Nascimento, Jamile P. [1 ]
Brito, Nubia S. D. [1 ]
Souza, Benemar A. [1 ]
机构：
[1] Univ Fed Campina Grande, Dept Elect Engn, Campina Grande, Paraiba, Brazil
来源：
COMPUTERS & ELECTRICAL ENGINEERING | 2020年 / 81卷
关键词：
Adaptive protection system; Distributed generation; Directional overcurrent relay; Microgenetic algorithm; COORDINATION; RELAYS; SCHEME; LOGIC;
D O I：
10.1016/j.compeleceng.2019.106545
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, an innovative adaptive directional overcurrent protection system for electric power distribution systems with respect to distributed generation is proposed. The proposed system supervises network topology based on the monitoring functionality of numerical relays. The system detects any changes in the configuration and recalculates the directional overcurrent protection settings by using a microgenetic algorithm. The proposed system was evaluated for several operating scenarios and insertion levels of distributed generation, and then compared with both conventional and adaptive protection systems by means of a traditional genetic algorithm. The results showed that the performance of the proposed system is superior to the other two methods in terms of both speed and selectivity. This shows that this is a promising proposal for the protection of modern electric power distribution systems. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：16
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