Results 161 to 170 of about 2,500 (192)

A Novel Convexified Linear Program for Coordination of Directional Overcurrent Relays

IEEE Transactions on Power Delivery, 2019
A novel convexified linear program for optimal directional overcurrent relay (DOCR) coordination problem (CP) is proposed in this letter. The DOCR CP is a highly constrained nonlinear nonconvex problem which was solved using various traditional and heuristic optimization techniques in the past.
Srinivas STP, Pranjal Pragya Verma, K Shanti Swarup   +2 more
openaire   +1 more source

Mitigating the impact of distributed generation and fault current limiter on directional overcurrent relay coordination by adaptive protection scheme

2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2019
Overcurrent protection principle are mostly coordinated offline according to maximum load and fault currents on dominant topology. However, the traditional networks have been evolving gradually toward reliable and sustainable Smart Grid (SG) in which ...
Meng Yen Shih, A. Conde, C. Angeles‐Camacho, E. Fernandez, Zbigniew Leonowicz   +4 more
semanticscholar   +1 more source

Optimal coordination of directional overcurrent relays: A genetic algorithm approach

2012 IEEE Students' Conference on Electrical, Electronics and Computer Science, 2012
In this paper, the optimization of coordination of directional overcurrent relays in an interconnected power system is presented. The objective of protective relay coordination is to achieve selectivity without sacrificing sensitivity and quick fault clearance time.
Dharmendra Kumar Singh, S. Gupta
openaire   +1 more source

Optimization Techniques for Overcurrent Relay Coordination – A Review

2025 IEEE Connecting the Unconnected Europe, Middle East, and Africa Regional Summit (CTUS-EMEA)
Electrical power systems utilize overcurrent relay protection to protect the circuits from excessive currents coming through. When coordinating overcurrent relays, determining the optimal time for primary and backup relays to activate is one of the ...
Amenkhienan O. Glory, Tafa O. Adebimpe, Amole Abraham   +2 more
semanticscholar   +1 more source

Spurious Operation of the Directional Overcurrent Relay for a Collector Feeder in a Type-3 Turbine Wind Farm

Australasian Universities Power Engineering Conference
This study presents a methodology to set wind farm collector feeder's directional overcurrent relay element is set to prevent spurious tripping from occurring.
Girish Chaturvedi, Narottam Das, Shantanu Kumar   +2 more
semanticscholar   +1 more source

Directional overcurrent relay coordination optimization

2023
Meng Yen Shih, Arturo Conde, Jorge Chan González, Francisco Lezama Zárraga   +3 more
openaire   +1 more source

An application of rule based system to the coordination of directional overcurrent relays

6th International Conference on Developments in Power Systems Protection, 1997
In this paper, we apply a rule based system, in which production rules are utilized to solve a domain problem, to the relay settings and its time delay coordination for directional overcurrent relays. In order to proceed them efficiently, we first propose a simple algorithm for finding the order of relay settings by using heuristic rules which are ...
openaire   +1 more source

Coordination of directional overcurrent relays in transmission systems-a subsystem approach

IEEE Transactions on Power Delivery, 1990
A new concept, called subsystem coordination, for efficiently computing proper settings of directional overcurrent relays on transmission systems in response to changes in system topology and load levels is proposed. An automatic window identification and coordination algorithm has been developed, implemented, and tested on a realistic transmission ...
R. Ramaswami, M.J. Damborg, S.S. Venkata
openaire   +1 more source

Optimal Overcurrent Relay Coordination in Electrical Power Systems

2025 2nd International conference on Advances in Electronics, Control and Communication Systems (ICAECCS)
Short circuits arise unexpectedly in power systems, generating fault currents that compromise both equipment integrity and overall stability. Directional overcurrent relays (DOCRs) are therefore essential for fault protection, requiring accurate ...
Merabet Oussama, Kheldoun Aissa, Saadi Houssam Eddine   +2 more
semanticscholar   +1 more source

An adaptive protection method with directional overcurrent relay coordination using hybrid chaotic artificial humming bird optimization

Electrical Engineering, 2023
Nidhi Yashvantrai Savjani, B. Parekh
semanticscholar   +1 more source