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
분산전원 연계선로에서 보호계전기의 상전류 오차보정 알고리즘 개발

Dong-Yeol Shin, Donghyun Yun, HanJu Cha
2013 The Transactions of The Korean Institute of Electrical Engineers  
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
more » ... ent 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.
doi:10.5370/kiee.2013.62.11.1604 fatcat:txc55waspjefteerwly3jwuee4