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Improving the Directional Decision Algorithm of Protective Devices for the Increasing Interconnection of Distributed Generation
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Publication Year
2019-08-01
Journal
IEEE Power and Energy Society General Meeting
Publisher
IEEE Computer Society
Citation
IEEE Power and Energy Society General Meeting, Vol.2019-August
Keyword
Directional Decision AlgorithmDirectional Protective DeviceDistributed GenerationDistribution System
Mesh Keyword
Decision algorithmsDistribution systemsElectric power corporationProtection coordinationProtective devicesThreshold-valueZero sequence voltage
All Science Classification Codes (ASJC)
Energy Engineering and Power TechnologyNuclear Energy and EngineeringRenewable Energy, Sustainability and the EnvironmentElectrical and Electronic Engineering
Abstract
Directional protective devices are utilized for reliable protection coordination in distribution system with Distributed Generation (DG). However, directional decision algorithm of Korea Electric Power Corporation (KEPCO) has found a problem to detect the correct direction when zero-sequence voltage is lower than the threshold value. This paper proposes new directional decision algorithm to solve this problem. For this, the existing algorithm and its problem are investigated. Then, the characteristic of fault current is analyzed according to the fault location in distribution system with DG. Based on the analysis, the improved algorithm is proposed. Finally, it is verified that the proposed algorithm can determine the correct direction regardless of lower zero-sequence voltage than threshold value.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36465
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85079052717&origin=inward
DOI
https://doi.org/10.1109/pesgm40551.2019.8973406
Journal URL
http://ieeexplore.ieee.org/xpl/conferences.jsp
Type
Conference
Funding
ACKNOWLEDGMENT This research was supported by Korea Electric Power Corporation. (Grant number: R17XA05-37).
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Jung, Jaesung  Image
Jung, Jaesung 정재성
Department of Electrical and Computer Engineering
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