[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5370/JEET.2016.11.3.585

A New Algorithm to Reduce the Mal-Operation of DOCR in Bi-directional Power Distribution Systems

Jang, Su-Hyeong (R&D Lab., LS Industrial Systems)
Oh, Joon-Seok (School of Electric Engineering, Chungbuk National Univ.)
Jeong, Ui-Yong (School of Electric Engineering, Chungbuk National Univ.)
Kim, Jae-Eon (School of Electric Engineering, Chungbuk National University)

Publication Information

Journal of Electrical Engineering and Technology / v.11, no.3, 2016 , pp. 585-591 More about this Journal

Abstract

DOCR can be used to efficiently increase the reliability and to protect the bi-directional D/L(Distribution Lines). As more DG(Distributed Generation)s attempt to connect the bi-directional D/L, there is an increasing need for studies of how to use DOCR installed in the D/L. This paper investigates the operating principles of DOCR and presents the results an effect of sequence and fault impedance in L-L(Line to Line) fault. An advanced DOCR operating algorithm is proposed to reduce the mal-operation of conventional DOCR. The proposed algorithm is applied to the bi-directional power flow system and shows that it decreases the mal-operation of DOCR through the computer simulation.

Keywords

Bi-directional power flow; Distributed generation; DOCR; Fault impedance; Mal-Operation; Sequence impedance;

Citations & Related Records

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