Results 61 to 70 of about 224 (167)

Optimal coordination of overcurrent relays for microgrid operation using JAYA algorithm

e-Prime: Advances in Electrical Engineering, Electronics and Energy
In modern microgrids, relay coordination is a very tedious task because of the variation in magnitude and direction of fault current. The change in fault current is diverse for inverter interfaced DGs (IIDGs) and synchronous-based DGs (SBDGs) The ...
Naveen Kumar, Dinesh Kumar Jain
doaj   +1 more source

Rekonfigurasi Relai Proteksi setelah Penambahan Pembangkit Tersebar pada Jaringan Distribusi

Jurnal Nasional Teknik Elektro, 2017
Installation of distributed generation (DG) on a distribution network can change the direction of electrical current during normal and faulted condition. This change can cause failures to operate of the existing relay protection.
Adrianti Adrianti, Nurul Mukhlisiah
doaj   +1 more source

Optimal Coordination of Distance and Directional Overcurrent Relays Considering Different Network Topologies

Iranian Journal of Electrical and Electronic Engineering, 2015
Most studies in relay coordination have focused solely on coordination of overcurrent relays while distance relays are used as the main protection of transmission lines.
Y. Damchi, J. Sadeh, H. Rajabi Mashhadi
doaj  

Modified Swarm-Based Artificial Intelligence Optimization for Optimal Coordination of Directional Overcurrent Relays in Power System

IEEE Access
The coordination of directional overcurrent relays (DOCRs) plays a critical role in ensuring the reliability and robustness of modern electrical power protection systems.
Abdul Wadood, Hani Albalawi, Aadel Mohammed Alatwi, Herie Park   +3 more
doaj   +1 more source

Optimal directional overcurrent relay settings for stable microgrids with synchronous and inverter-based resources

International Journal of Electrical Power & Energy Systems
Microgrid (MG) is a small-scale system that offers on-site energy production and storage capabilities, allowing for the seamless integration of different technology-driven distributed energy resources (DERs), including inverter-based and synchronous ...
Abdelfattah A. Eladl, Ahmed N. Sheta, M. Elgamal, Juan C. Vasquez, Bishoy E. Sedhom   +4 more
doaj   +1 more source

Optimal Microgrid Protection Coordination for Directional Overcurrent Relays Through Mixed-Integer Linear Optimization

Energies
Microgrids (MGs) are revolutionizing modern power systems by enabling decentralized energy production, renewable energy integration, and enhanced grid resilience. However, the increasing complexity of MGs, particularly with the integration of Distributed
León F. Serna-Montoya, Sergio D. Saldarriaga-Zuluaga, Jesús M. López-Lezama, Nicolás Muñoz-Galeano   +3 more
doaj   +1 more source

Adaptive harmonic-based protection coordination for inverter-dominated isolated microgrids considering N-1 contingency

International Journal of Electrical Power & Energy Systems
Protection coordination is typically approached considering the main network configuration. Nevertheless, contingencies such as generator or line failures may disrupt power grids.
Talal Elemamali Sati, Maher A. Azzouz, Mostafa F. Shaaban   +2 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

Finding Optimal Zone II Settings for Distance Relays in Coordination With Directional Overcurrent Relays Using QCQP Algorithm

IEEE Access
This paper introduces a deterministic method to address coordination challenges between distance relays (DS) and directional overcurrent relays (DOR) by employing quadratic programming with quadratic constraints (QCQP).
N. Praneeth, S. T. P. Srinivas, Alivelu M. Parimi, J. Ankamma Rao, Getie Tesfaye Zelie   +4 more
doaj   +1 more source

Distribution Network Fault Diagnosis Technology Based on Multi-Source Data Fusion

Shanghai Jiaotong Daxue xuebao
How to make full use of existing information to improve the accuracy of fault diagnosis in distribution networks, and provide accurate research and judgement for emergency repair of distribution networks, is an urgent problem to be solved. To address the
ZHANG Chunmei, XU Xingque, LIU Silin
doaj   +1 more source