Open AccessParametric analysis of the travelling wave‐based differential protection TW87
Author(s) -
Lopes Felipe V.,
Ribeiro João Paulo G.,
Leite Eduardo J.S.,
Silva Kleber. M.
Publication year - 2018
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.0230
Subject(s) - tripping , differential protection , relay , fault (geology) , parametric statistics , protective relay , electric power system , computer science , time domain , reliability engineering , power system protection , differential (mechanical device) , stability (learning theory) , process (computing) , power (physics) , domain (mathematical analysis) , electrical engineering , engineering , circuit breaker , mathematics , voltage , physics , transformer , mathematical analysis , quantum mechanics , statistics , aerospace engineering , operating system , machine learning , computer vision , seismology , geology
Time‐domain protection relays have increasingly attracted the attention of electrical power utilities. These relays speed up the tripping process of traditional protection schemes, increasing the stability margins of high‐loaded power grids. Among the existing time‐domain protection functions, the travelling wave (TW)‐based differential protection TW87 has shown to be promising. However, as such a function is relatively new in the relay market, studies on the TW87 performance have been of interest to protection engineers. Thus, this study presents a parametric analysis of the TW87 performance. To do so, massive fault simulations are carried out, considering different fault scenarios and protection settings. From the obtained results, important issues related to the TW87 performance are addressed.