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Energies 2017, 10(7), 1004; https://doi.org/10.3390/en10071004

New Adaptive Reclosing Technique in Unbalanced Distribution System

School of IT Engineering, Yonam Institute of Technology, Jinju 52821, Korea
Received: 9 June 2017 / Revised: 12 July 2017 / Accepted: 13 July 2017 / Published: 15 July 2017
(This article belongs to the Section Electrical Power and Energy System)
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Abstract

The conventional reclosing of a distribution system is performed after a fixed dead time. However, it may lead to the increased outage time due to delayed reclosing. To solve this problem, this paper proposes a new adaptive reclosing scheme. The electrostatic induction is analyzed under at during-fault and post-fault conditions. Based on this analysis, the method to judge the fault clearance using the load current is proposed. The reclosing is adaptively performed after fault clearance. The distribution system and reclosing scheme are modelled by the electromagnetic transient program (EMTP). The various simulations according to the unbalanced ratio and various fault conditions are performed and analyzed. The superiority of the proposed scheme is verified by comparing with the conventional reclosing method. View Full-Text
Keywords: distribution system; electrostatic induction; EMTP; neutral current; reclosing distribution system; electrostatic induction; EMTP; neutral current; reclosing
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Seo, H.-C. New Adaptive Reclosing Technique in Unbalanced Distribution System. Energies 2017, 10, 1004.

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