Results 81 to 90 of about 235,466 (206)

Coordination of Directional Overcurrent Relays using Growth Optimizer

Electrotehnica, Electronica, Automatica
The protection system plays a crucial role in the generation, transmission, and distribution systems of a power network. Among various protection relay types, Directional Overcurrent Relays (DOCRs) are the most used. When abnormal conditions are detected, these relays trigger the tripping of protection devices by detecting the direction and magnitude ...
Ridha Djamel MOHAMMED, Miloud KADDOURI, Abdelkader BELADEL   +2 more
openaire   +1 more source

Real‐Time Fault Detection and Classification in Active MV Distribution Networks Using Compact Feature–Based Ensemble Learning Under DG Infeed With Field Validation on the Moroccan Grid

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
Reliable fault diagnosis in medium‐voltage distribution networks remains difficult due to measurement noise, variability in operating conditions, and the limited computational resources typically available in protection hardware. To address these constraints, the present paper introduces a compact and relay‐compatible framework that integrates ...
Saad Sarih, Samira Chabaa, Zakaria Boulghasoul, Abdelhadi ElBacha, Abdelouahed Tajer, Anamika Yadav   +5 more
wiley   +1 more source

A Novel Protective Logic for Optimal Coordination of Overcurrent Relays [PDF]

, 2015
Usually coordination of overcurrent relays is done by taking into account the specific structure of the system which does not show the real state of the system.
Samadinasab, Sajad, Shojaei, Nader, Namdari, Farhad   +2 more
core   +1 more source

Optimal Coordination of DOC Relays Incorporated into a Distributed Generation-Based Micro-Grid Using a Meta-Heuristic MVO Algorithm

Energies, 2019
Distributed, generation-based micro-grids are increasingly being used in the build-up of the modern power system. However, the protection of these micro-grids has many challenges.
Mahmoud Abdelsalam, Hatem Y. Diab
doaj   +1 more source

Optimal Coordination of Directional Overcurrent Relays using Hybrid PSO-DE Algorithm

, 2015
-This paper presents a new approach for the optimal coordination of IDMT directional overcurrent relays in meshed power systems using a hybrid particle swarm optimization based differential evolution algorithm (PSO-DE).
M Zellagui, A Y Abdelaziz
core  

Optimal Coordination of Directional Overcurrent Relays (DOCR) Using Cheetah Optimizer

Tikrit Journal of Engineering Sciences
This paper suggests a nature-inspired optimization technique, the Cheetah Optimizer (CO), to achieve optimal Directional Overcurrent Relays (DOCRs) coordination.
Wisam Najm Al-Din Abed
doaj   +1 more source

Optimal coordination of directional overcurrent relays considering non-standard curves and multiple network topologies using tlbo-lp

, 2017
In this article, Directional Over-current Relay (DOCR) Coordination was performed considering various network topologies and the non-standard curve for the overcurrent relay.
Sadeghi, S.H.H., Chabanloo, R. Mohammadi, Bayati, N.   +2 more
core  

Hybrid mixed-integer non-linear programming approach for directional over-current relay coordination

The Journal of Engineering, 2019
This article proposes the optimal coordination problem of protective relays within a hybrid optimisation framework which is presented based on integer coded genetic algorithm (ICGA) and non-linear programming (NLP).
Mohammad Sadegh Javadi, Ali Esmaeel Nezhad, Ali Esmaeel Nezhad, Amjad Anvari-Moghadam, Josep M. Guerrero   +4 more
doaj   +1 more source

Improved Solutions for the Optimal Coordination of DOCRs Using Firefly Algorithm

Complexity, 2018
Nature-inspired optimization techniques are useful tools in electrical engineering problems to minimize or maximize an objective function. In this paper, we use the firefly algorithm to improve the optimal solution for the problem of directional ...
Muhammad Sulaiman, Waseem, Shakoor Muhammad, Asfandyar Khan   +3 more
doaj   +1 more source

Optimum coordination of directional overcurrent relays in a distribution network with distributed generation [PDF]

, 2017
MEng (Electrical and Electronic Engineering), North-West University, Potchefstroom Campus, 2017The conventional relay protection coordination method is mainly used in the industry to calculate the protective overcurrent relay settings.
Mapapanyane, Sophia Masabata
core