Open AccessInfluence of mutual coupling modelling on the effectiveness of a distance relaying algorithm applicable to long parallel transmission lines
Author(s) -
Araújo Marcos R.,
Pereira Clever
Publication year - 2018
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.0270
Subject(s) - electric power transmission , relay , matlab , coupling (piping) , transmission line , fault (geology) , line (geometry) , computer science , compensation (psychology) , algorithm , transmission (telecommunications) , parallel , electrical impedance , phase (matter) , control theory (sociology) , electronic engineering , topology (electrical circuits) , mathematics , telecommunications , electrical engineering , engineering , physics , geometry , mechanical engineering , psychology , power (physics) , control (management) , quantum mechanics , artificial intelligence , seismology , geology , psychoanalysis , operating system
This study presents an evaluation of the influence of mutual coupling modelling on the effectiveness of a distance protection scheme suitable for long parallel transmission lines. Sliding single‐line‐to‐ground fault simulations have been carried out in MATLAB using a phase‐domain approach. The output voltage and current signals were applied to the distance relaying algorithm considering exact compensation parameters. It is shown that, for the system considered, assuming parallel transmission lines modelled as a six‐phase line, an average relative error of 1.19% is found for the magnitude of the apparent impedances seen by the relay.