Results 71 to 80 of about 2,378 (215)

Optimal Protection Planning and Coordination in Microgrids With SDGs, SFCLs, and OCR Using WOA

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
One of the critical challenges in power system protection is ensuring proper relay coordination. To achieve optimal coordination of protection systems and ensure security, fast cleaning, and selection of types of faults is a necessary priority. This priority, when hosting synchronous distributed generations (SDGs), although technical factors like power
Mohammad Hassan Tanha, Majid Gandomkar, Javad Nikoukar, Ayman Al-Quraan   +3 more
wiley   +1 more source

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

An Improved Communication-Free Dual Characteristic Over Current-Based Protection Scheme for AC Microgrids

International Transactions on Electrical Energy Systems
The entry of distributed generation causes the network to become complicated, and as a result, the protection coordination between the network equipment is lost.
Hossein Mohammadi Panah, Behrooz Zaker, Haidar Samet   +2 more
doaj   +1 more source

Ant Lion Optimizer for Optimal Coordination of DOC Relays in Distribution Systems Containing DGs

IEEE Access, 2018
Traditionally, the distribution system is typically radial and the protection system has been designed for this purpose. After increasing the distributed generations (DG) in distribution systems, the direction of the electrical power flow and the short ...
A. Y. Hatata, Alnufaie Lafi
doaj   +1 more source

Relay protection for lines being sleet-melted by the short-circuit method [PDF]

, 1956
"July 20, 1956.""Reprinted from Transactions of the American Institute of Electrical Engineers, vol. 74, December 1955.""Sleet formation on transmission lines was recognized as a serious operating problem as early as 1916 and shortly thereafter methods ...
Hogan, J.C., Pebler, C.G.
core  

Influence of fault-ride-through requirements for distributed generators on the protection coordination of an actual distribution system with reclosers [PDF]

, 2017
This paper analyses the existing protection scheme of a real distribution system with distributed generators, in Greece. Network protection utilizes three successive reclosers at the main trunk and fuses at the laterals.
Konstantopoulos, G.C., Nikolaidis, V.C., Papanikolaou, N., Paspatis, A.G., Safigianni, A.S.   +4 more
core   +1 more source

Advanced Three‐Level Characteristic of Overcurrent Relays Based on Non‐Standard Characteristic for Enhanced Microgrid Protection

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
The growing integration of distributed generations (DGs) and the islanding capabilities of microgrids (MGs) have fundamentally changed the configuration of power distribution networks (DNs), significantly impacting short‐circuit current levels and thereby, challenging the reliability of conventional protection systems.
Feras Alasali, Naser El-Naily, Haytham Y. Mustafa, Hassen Loukil, Abdelaziz Salah Saidi, William Holderbaum, Rajashik Paul   +6 more
wiley   +1 more source

Applying Hybrid PSO to Optimize Directional Overcurrent Relay Coordination in Variable Network Topologies

Journal of Applied Mathematics, 2013
In power systems, determining the values of time dial setting (TDS) and the plug setting (PS) for directional overcurrent relays (DOCRs) is an extremely constrained optimization problem that has been previously described and solved as a nonlinear ...
Ming-Ta Yang, An Liu
doaj   +1 more source

Impedance‐Based Adaptive Droop Control for Islanded AC Microgrids and Overview

International Transactions on Electrical Energy Systems, Volume 2025, Issue 1, 2025.
Recent improvements in the application of distributed energy resources (DERs) and microgrids (MGs) have made controlling these resources very important. However, there are still many challenges in this field. One of the anticipated challenges in islanded MGs (IMGs) is the mismatched output impedance of DERs, which affects the volt‐var regulation ...
Forough Qashqaie, Hadi Saghafi, Ramtin Sadeghi, Bahador Fani, Michele De Santis   +4 more
wiley   +1 more source

Pemodelan dan Simulasi Sistem Proteksi Mikrogrid [PDF]

, 2016
Mikrogrid mengintegrasi sumber energi terdistribusi untuk menyediakan sistem yang handal dan ramah lingkungan. Akibat adanya generator dan PV pada semua level sistem mikrogrid dan 3 konfigurasi sistem yang berbeda, yaitu hanya terhubung grid, terhubung ...
Soeprijanto, A. (Adi), Trisnasari, C. T. (Christina), Wibowo, R. S. (Rony)   +2 more
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