Mitigation of DOCR miscoordination through distance relays and non-standard overcurrent curves
Sign Up to like & getrecommendations! Published in 2018 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2018.06.012
Abstract: Abstract This article presents the application of non-standardized inverse-time curves and distance relays to solve the lack of sensitivity of relays during overcurrent relay coordination. The inclusion of distance relays to replace the insensitive overcurrent… read more here.
Keywords: coordination; mitigation docr; overcurrent relay; overcurrent ... See more keywords
Wide area backup protection scheme for distance relays considering the uncertainty of network protection
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DOI: 10.1016/j.epsr.2020.106651
Abstract: Abstract Although local protection methods can perform well at speed, in a real network where network uncertainties are unavoidable, these methods may result in inaccurate performance. Therefore, the use of other methods, such as wide… read more here.
Keywords: wide area; protection; distance relays; network ... See more keywords
A new approach to eliminate impacts of high-resistance faults by compensation of traditional distance relays’ input signals
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DOI: 10.1016/j.epsr.2021.107098
Abstract: Abstract Ground impedance measuring elements of digital distance relays, responsible for line to ground faults, are highly prone to underreach in case of high-resistance faults. To tackle this problem for the distance protection of parallel… read more here.
Keywords: distance; approach; high resistance; distance relays ... See more keywords
Two effective methods for impedance estimation in distance relays based on the DC offset removal
Sign Up to like & getrecommendations! Published in 2021 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2021.107102
Abstract: Abstract This paper introduces the eigensystem realization (ER)-based identification algorithm and the Z-domain method (ZDM) to improve the impedance estimation of transmission lines under fault conditions, which is achieved by removing the exponential decaying DC… read more here.
Keywords: impedance estimation; distance relays; two effective; distance ... See more keywords
High-speed auxiliary fault location element for distance relays in double-circuit lines
Sign Up to like & getrecommendations! Published in 2021 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2021.107470
Abstract: Abstract In multi-zone distance relays, zone-2 has an intentional time delay which is considered for the coordination among the other distance relays. This delay is unnecessary for faults that occur at the end of the… read more here.
Keywords: distance; fault location; distance relays; high speed ... See more keywords
Multi-Agent Distributed Deep Learning Algorithm to Detect Cyber-Attacks in Distance Relays
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DOI: 10.1109/access.2023.3239684
Abstract: Distance relays are critical components in protection systems of power grids that can be attacked by cyber-attackers. Indeed, a cyber-attacker injects fake data into a distance relay to pretend a fault has happened, and the… read more here.
Keywords: agent distributed; distance; distance relays; cyber attacks ... See more keywords
Setting Zero-Sequence Compensation Factor in Distance Relays Protecting Distribution Systems
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Power Delivery"
DOI: 10.1109/tpwrd.2017.2762465
Abstract: Reliable protection of modern distribution systems is challenging due to various technical difficulties, mainly related to the need for more efficient use of existing networks (e.g., shorter interruption durations and fewer affected customers, integration of… read more here.
Keywords: methodology; distance; setting zero; distribution systems ... See more keywords
Three zone detection and distance relay co-ordination of power system protection
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Electrical and Computer Engineering"
DOI: 10.11591/ijece.v11i2.pp919-928
Abstract: To secure the transmission lines against power system faults, the distance relays are mostly used. Distance relay has its own Resistance (R)–Reactance (X) characteristics. Co-ordination of different distance relays is necessary for the fast operation… read more here.
Keywords: system; distance; power system; distance relays ... See more keywords