Results 41 to 50 of about 91,620 (325)

Optimal Coordination of Directional Overcurrent Relays Using an Exponential-Based Non-Standard Characteristic and the Nutcracker Optimizer

Gazi Üniversitesi Fen Bilimleri Dergisi
Directional overcurrent relays (DOCRs) play a crucial role in protecting sub-transmission and distribution systems due to their simplicity and cost- ffectiveness. For selective and rapid protection, proper coordination of these relays is essential.
Alişan Ayvaz
doaj   +1 more source

A Comprehensive Assessment of Fundamental Overcurrent Relay Operation Optimization Function and Its Constraints

Energies, 2022
The optimization of overcurrent relays’ operation is a topic associated with protection coordination of distribution networks. Usually, this refers to medium-voltage networks, since they are protected by numerical relay devices, as opposed to low-voltage
Michele Rojnić, Rene Prenc, Hrvoje Bulat, Dubravko Franković   +3 more
doaj   +1 more source

Enhancing Microgrid Protection Through Adaptive Decentralized Relay Coordination: A Solution to Blinding and Sympathetic Tripping

IEEE Access
Integrating Distributed Energy Resources into microgrids modifies the network’s system parameters and causes it to exhibit behaviour, particularly during fault conditions.
Sujatha Balasubramanian, J. Preetha Roselyn, Prabha Sundaravadivel   +2 more
doaj   +1 more source

A multi-agent based protection in distribution networks including distributed generations

Energy Reports, 2022
This paper proposes a strategy for protection coordination in distribution networks with DGs penetration. The main objective of the present work is to employ the potential of Multi-Agent Systems (MASs), which have recently been given considerable ...
E. Abbaspour, B. Fani, E. Heydarian-Forushani, A. Al-Sumaiti   +3 more
doaj   +1 more source

STiCMAC: A MAC Protocol for Robust Space-Time Coding in Cooperative Wireless LANs

, 2011
Relay-assisted cooperative wireless communication has been shown to have significant performance gains over the legacy direct transmission scheme. Compared with single relay based cooperation schemes, utilizing multiple relays further improves the ...
Erkip, Elza, Korakis, Thanasis, Liu, Pei, Nie, Chun, Panwar, Shivendra, Scaglione, Anna, Verde, Francesco   +6 more
core   +3 more sources

Recent blackouts in US and continental Europe: is liberalisation to blame? [PDF]

, 2004
The paper starts with a detailed technical overview of recent blackouts in the US, Sweden/Denmark and Italy in order to analyse common threads and lessons to be learnt.
Bialek, Janusz
core   +1 more source

Epidermal Patch Technologies for Integrated Healthcare and Infection Management

Advanced Healthcare Materials, EarlyView.
Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang, Atakan Tevlek, Pawel L. Urban, Boaz Mizrahi, Onome Ejeromedoghene, Roshan Deen, Yuanjing Lin, Jagan Mohan Dodda   +7 more
wiley   +1 more source

Distance optimization and directional overcurrent relay coordination using edge-powered biogeography-genetic algorithms

Journal of Cloud Computing: Advances, Systems and Applications
The effective functioning and regulation of power systems crucially rely on the coordination of distance and directional overcurrent relays. Accurate fault detection and successful clearing sequences require support for each relay and the maintenance of ...
Mohammadreza Aminian, Mehdi Jafari Shahbazzadeh, Mahdiyeh Eslami   +2 more
doaj   +1 more source

The development of the impedance measured by distance relay [PDF]

, 2015
This paper explains the possibility of implementation of a model of a quadrilateral characteristic type of distance relay with the zones using MATLAB/SIMULINK package. SimPowerSystem was used to present modeling of distance relay.
Wannous, K.
core  

A Simple Cooperative Diversity Method Based on Network Path Selection

, 2005
Cooperative diversity has been recently proposed as a way to form virtual antenna arrays that provide dramatic gains in slow fading wireless environments.
Bletsas Aggelos(http://users.isc.tuc.gr/~abletsas), Khisti, A.(), Lippman, Andrew(), Reed, D.P. (), Μπλετσας Αγγελος(http://users.isc.tuc.gr/~abletsas)   +4 more
core   +2 more sources