Adaptive Protection Algorithm for Overcurrent Relay in Distribution System with DG

被引:11
|
作者
Sung, Byung Chul [1 ]
Lee, Soo Hyoung [3 ]
Park, Jung-Wook [1 ,2 ]
Meliopoulos, A. P. S. [3 ]
机构
[1] Yonsei Univ, Sch Elect & Elect Engn, Seoul 120749, South Korea
[2] Yonsei Univ, Sch Elect & Elect Engn, Yonsei Power & Renewable Energy FuturE Technol Re, Seoul 120749, South Korea
[3] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
基金
新加坡国家研究基金会;
关键词
Adaptive protection algorithm; Coordination time interval; Distributed generation; Inverse-time overcurrent relay; Protective coordination; FUSE;
D O I
10.5370/JEET.2013.8.5.1002
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 proposes the new adaptive protection algorithm for inverse-time overcurrent relays (OCRs) to ensure their proper operating time and protective coordination. The application of the proposed algorithm requires digital protection relays with microcontroller and memory. The operating parameters of digital OCRs are adjusted based on the available data whenever system conditions (system with distributed generation (DG)) vary. Moreover, it can reduce the calculation time required to determine the operating parameters for achieving its purpose. To verify its effectiveness, several case studies are performed in time-domain simulation. The results show that the proposed adaptive protection algorithm can keep the proper operating time and provide the protective coordination time interval with fast response.
引用
收藏
页码:1002 / 1011
页数:10
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