Results 21 to 30 of about 136,630 (267)

An Optimization-based Protection Strategy in Active Distribution Network using Double Dual-Setting Directional Overcurrent Relays to Increase DG Penetration [PDF]

International Journal of Research and Technology in Electrical Industry, 2023
Coordination between protection devices is one of the important issues in any protection scheme of an electrical power system. The tendency to increasingly use distributed generation has jeopardized the selectivity of overcurrent relays in active ...
Sajjad Dadfar, Shokoofeh Balooch
doaj   +1 more source

Politicization of water, humanitarian response, and health in Syria as a contributor to the ongoing cholera outbreak

International Journal of Infectious Diseases, 2023
In September 2022, the Syrian Ministry of Health declared a cholera outbreak after a surge of acute watery diarrhea cases. Since then, cases have been reported across Syria, particularly in the northwest.
Maia C. Tarnas, Nabil Karah, Naser Almhawish, Ibrahim Aladhan, Radwan Alobaid, Aula Abbara   +5 more
doaj   +1 more source

Adaptive Protection Method of Distribution Networks Using the Sensitivity Analysis for Changed Network Topologies Based on Base Network Topology

IEEE Access, 2020
This paper proposes an adaptive protection method using sensitivity analysis that examines the effect of changed network topologies (CNTs) on the operation time of protective devices (PDs) for a base network topology (BNT) in a distribution network.
Mi-Gon Choi, Seon-Ju Ahn, Joon-Ho Choi, Sung-Min Cho, Sang-Yun Yun   +4 more
doaj   +1 more source

An Adaptive Overcurrent Coordination Scheme Withstanding Active Network Operations

IEEE Access, 2022
This paper aims to present a centralized adaptive protection scheme (APS) for the directional overcurrent relays (DOCRs) considering system dynamics such as load demand variations, topology changes and DGs to mitigate the above-mentioned effects.
Arturo Conde, Meng Yen Shih
doaj   +1 more source

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

Energies, 2018
The radial distribution networks are designed for unidirectional power flows and are passive in nature. However, with the penetration of Distributed Generation (DG), the power flow becomes bidirectional and the network becomes active.
Sunny Katyara, Lukasz Staszewski, Zbigniew Leonowicz   +2 more
doaj   +1 more source

Progress on Protection Strategies to Mitigate the Impact of Renewable Distributed Generation on Distribution Systems

Energies, 2017
The benefits of distributed generation (DG) based on renewable energy sources leads to its high integration in the distribution network (DN). Despite its well-known benefits, mainly in improving the distribution system reliability and security, there are
Mohamad Norshahrani, Hazlie Mokhlis, Ab. Halim Abu Bakar, Jasrul Jamani Jamian, Shivashankar Sukumar   +4 more
doaj   +1 more source

Protection Coordination Method Using Symmetrical Components in Loop Distribution System

Energies, 2021
Power utilities worldwide commonly use the radial distribution system because of its advantages of being simple in structure and having relatively inexpensive installation costs.
Jung-Hun Lee, Woo-Hyun Kim, Hak-Ju Lee, Jun-Oh Kim, Woo-Kyu Chae   +4 more
doaj   +1 more source

User-Defined Dual Setting Directional Overcurrent Relays with Hybrid Time Current-Voltage Characteristics-Based Protection Coordination for Active Distribution Network

IEEE Access, 2021
With the penetration of renewable energy sources based distributed generation (RES-DG) in the distribution network (DN), the operating time of protection relays becomes a major concern to avoid the mis-coordination and nuisance tripping of RES-DG.
Lucheng Hong, Mian Rizwan, Muhammad Wasif, Shafiq Ahmad, Mazen Zaindin, Muhammad Firdausi   +5 more
doaj   +1 more source

A Robust Adaptive Overcurrent Relay Coordination Scheme for Wind-Farm-Integrated Power Systems Based on Forecasting the Wind Dynamics for Smart Energy Systems

Applied Sciences, 2020
Conventional protection schemes in the distribution system are liable to suffer from high penetration of renewable energy source-based distributed generation (RES-DG).
Mian Rizwan, Lucheng Hong, Muhammad Waseem, Shafiq Ahmad, Mohamed Sharaf, Muhammad Shafiq   +5 more
doaj   +1 more source

Minimum income protection and EU coordination [PDF]

European Journal of Social Security, 2018
A number of studies suggest that the Europeanisation process is having a profound impact on national labour market policies. Nevertheless, rather little research has been devoted to the development of social assistance schemes across countries and over time.
Wang, J., Vliet, O.P. van, Goudswaard, K.P.   +2 more
openaire   +2 more sources