An Implementation Method of the Protection and Control Functions for Power System using IEC 61850 Process Bus

Abstract

This paper proposes implementing and remotely setting any protection control logical nodes for fault clearance and fault cascading prevention applications that require high speed, high accuracy, and noise immunity using the IEC 61850 process bus. The validity of the proposed method is verified through reference implementation and evaluation tests of a domestic protection and control function. The evaluation test results show that the protection control function implemented by the proposed method can perform remote setting changeover and switching based on IEC 61850 and that the required performance in terms of protection relay execution time and accuracy can be obtained. The study also provides key findings on the processing time needed to control on/blocked the trip signal outputs and protection control functions, as well as the amount of communication transmission. This study is expected to contribute to establishing technologies for maintaining power system stability and interconnection of systems in the future.