Results 41 to 50 of about 6,985 (272)

Optimal Coordination of Protection Devices in Distribution Networks With Distributed Energy Resources and Microgrids

IEEE Access, 2022
Microgrids are promising to enhance power distribution systems’ efficiency, quality, sustainability, and reliability. However, microgrids operation can impose several challenges to traditional protection schemes, like changes in the power flow ...
Cleberton Reiz, Jonatas Boas Leite
doaj   +1 more source

Evaluation of a Local Fault Detection Algorithm for HVDC Systems [PDF]

, 2019
A great increase in the amount of energy generated from clean and renewable sources integrated in the electric power system is expected worldwide in the coming years.
Eguia Lopez, P., Larruskain Eskobal, M., Perez Molina, M.J., Rodriguez Sanchez, R., Santos Mugica, M.   +4 more
core   +2 more sources

Review on Coordination of Time Overcurrent Relays in Electrical Distribution Network

Acta Technica Jaurinensis
Integration of distributed generators in micro grid causes bidirectional current flow as a result of the need for readjustment of the setting of the overcurrent protective relays in the electrical network.
Godfrey Mhagama, Ndyetabura Y. Hamisi, Shililiandumi Naiman   +2 more
doaj   +1 more source

Assessment of unintentional islanding operations in distribution networks with large induction motors [PDF]

, 2020
This paper is aimed at assessing the impact of unintentional islanding operations (IOs) in the presence of large induction motors (IMs) within distribution networks (DNs).
Bosch Tous, Ricardo, Casals Torrens, Pau, Martinez Velasco, Juan A., Serrano Fontova, Alexandre   +3 more
core   +2 more sources

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

Communicationless Overcurrent Relays Coordination for Active Distribution Network Considering Fault Repairing Periods

Energies, 2023
This paper presents an integrated overcurrent relays coordination approach for an Egyptian electric power distribution system. The protection scheme suits all network topologies, including adding distribution generation units (DGs) and creating new paths
Mahmoud A. Elsadd, Ahmed F. Zobaa, Heba A. Khattab, Ahmed M. Abd El Aziz, Tamer Fetouh   +4 more
doaj   +1 more source

A Review of Overcurrent Protection in Smart Grids Under Cyber‐Physical Threats With a Cyber‐Physical Evaluation Framework

Energy Science &Engineering, EarlyView.
By manipulating current and voltage measurements, an assailant can induce unwanted relay action while attempting to avoid detection. Detecting advanced cyber intrusions in power protection environments requires specialised data analysis and anomaly detection methods.
Feras Alasali, Anas AlMajali, Naser Naily, Hassen Loukil, Salah AbuGhalyon, William Holderbaum, Abdelaziz Salah Saidi   +6 more
wiley   +1 more source

Optimal protection coordination for directional overcurrent relays in radial distribution networks with inverter-based distributed energy resources

International Journal of Electrical Power & Energy Systems
The optimal setting of directional overcurrent relays ensures the reliable protection and fast fault clearance of radial distribution networks. However, the increasing proliferation of inverter-based distributed energy resources can result in protection ...
Jie Li, Jingtong Feng, Min Huang, Shenquan Liu, Gang Wang   +4 more
doaj   +1 more source

International White Book on DER Protection : Review and Testing Procedures [PDF]

, 2011
This white book provides an insight into the issues surrounding the impact of increasing levels of DER on the generator and network protection and the resulting necessary improvements in protection testing practices.
Abdulhadi, Ibrahim Faiek, Booth, Campbell, Burt, Graeme, Coffele, Federico, Crolla, Paul, Dysko, Adam, Li, Xinyao, Schafer, Nils   +7 more
core  

An adaptive overcurrent protection scheme for distribution networks [PDF]

, 2015
Distribution networks are evolving toward the vision of smart grids, with increasing penetration of distributed generation (DG), introduction of active network management (ANM), and potentially islanded modes of operation.
Booth, C., Coffele, F., Dyśko, A.
core   +1 more source