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http://dx.doi.org/10.5370/KIEE.2013.62.11.1604

The Development of an Algorithm for the Correction of Errors in the Phase Current of the Protective Relay on Distribution System Interconnected with Distributed Generations  

Shin, Dong-Yeol (Korea Electric Power Research Institute)
Yun, Donghyun (Department of Electrical Engineering, Chungnam National University)
Cha, HanJu (Department of Electrical Engineering, Chungnam National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.11, 2013 , pp. 1604-1609 More about this Journal
Abstract
When the ground fault on the power side occurs on distribution system interconnected with distributed generations, the abnormal current is generated in the neutral conductor by the connection type and the iron core structure of transformers for the interconnection of distributed power supplies due to the unbalanced voltage of the system, and subsequently the false operation of the protective relay on the load side occurs. Herein, this paper proposes the method to correct errors in the phase current to prevent the false operation of the protective relay by applying p-q theory and presents the simulation result of the error correction algorithm using PSCAD/EMTDC.
Keywords
p-q theory; Algorithm for the correction of errors in the phase current; Protective relay; Y-Y or Y-${\Delta}$ connected transformer;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Dong-Yeol Shin, Donghyun Yun, HanJu Cha, "Problem Analysis by Iron Core Structure of the Transformer on Asymmetric three Phase Lines and Prevention Measures", The Transactions of the Korean Institute of Electrical Engineers Vol.61, No.10, pp.1536-1541, 2012   과학기술학회마을   DOI   ScienceOn
2 Dong-Yeol Shin, Yong-woo Park, HanJu Cha " A Case Study on Malfunction of OCGR and Inaccuracy of Watt-hour Meter in Distributed Generation System", The Transactions of the Korean Institute of Electrical Engineers Vol.57, No.8, pp.1349-1355, 2008   과학기술학회마을
3 Dongyeol Shin, Dongmyung Kim, HanJu Cha, "An Overcurrent Analysis in Neutral Line and Algorithm to Prevent Malfunction of Relay in Distributed Generations", The Transactions of the Korean Institute of Electrical Engineers, Vol.58, No.10, pp. 1916-1922, 2009   과학기술학회마을
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