Results 11 to 20 of about 224 (167)

Non-Communication Based Time-Current-Voltage Dual Setting Directional Overcurrent Protection for Radial Distribution Systems With DG

open access: yesIEEE Access, 2020
This paper proposes a novel protection scheme equipped with time current voltage dual setting directional overcurrent relays for radial distribution systems with (distributed generation) DG without the need of communication assistance.
Ahmed Abdullah Balyith   +4 more
doaj   +1 more source

Coordination of non‐directional overcurrent relays and fuses in active distribution networks considering reverse short‐circuit currents of DGs

open access: yesIET Generation, Transmission & Distribution, 2021
Abstract The main protection equipment in radial distribution networks are non‐directional overcurrent relays (NDOCR) and fuses which are coordinated using the conventional protection coordination method.
Mahdi Ghotbi‐Maleki   +3 more
doaj   +1 more source

Fault Analysis and Design of a Protection System for a Mesh Power System with a Co-Axial HTS Power Cable

open access: yesEnergies, 2020
The uses of high-temperature superconducting (HTS) cables pose a challenge of power system protection since the impedance of the HTS cable is varied during fault conditions. The protection systems should be designed properly to ensure the reliability and
Thai-Thanh Nguyen   +3 more
doaj   +1 more source

A Distribution Line Protection Scheme for Network with Distributed Generation

open access: yesJurnal Nasional Teknik Elektro, 2021
Installation of distributed generations (DGs) can cause performance degradation of distribution lines protection. Therefore, the objective of this paper is to propose a protection scheme that can be a solution for this protection line degradation..
Adrianti Adrianti   +2 more
doaj   +1 more source

Optimal Coordination of Directional Overcurrent Relays Using PSO-TVAC Considering Series Compensation

open access: yesAdvances in Electrical and Electronic Engineering, 2015
The integration of system compensation such as Series Compensator (SC) into the transmission line makes the coordination of directional overcurrent in a practical power system important and complex.
Nabil Mancer   +2 more
doaj   +1 more source

Microgrid Protection through Adaptive Overcurrent Relay Coordination

open access: yesElectricity, 2021
The inclusion of distributed energy resources (DER) in Microgrids (MGs) comes at the expense of increased changes in current direction and magnitude.
Haneen Bawayan, Mohamed Younis
doaj   +1 more source

A Novel Reactive Current Injection (RCI) Control for Microgrid Protection with Inverter Based Distributed Generation (IBDG)

open access: yesEnergies, 2019
As the development of renewable distributed generations (DGs) is growing rapidly, the autonomous self-healing microgrid had emerged as an effective solution for integrating renewable DGs in the distribution networks.
Kheng Heong Oon   +4 more
doaj   +1 more source

Impact of GCSC on IDMT directional overcurrent relay in the presence of phase to earth fault [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2013
This paper presents the impact of GTO Controlled Series Capacitor (GCSC) parameters on the Inverse Definite Minimum Time (IDMT) Directional Overcurrent Relay (DOCR) based on the International Electrotechnical Commission (IEC) standards. The DOCR
Zellagui Mohamed   +3 more
doaj   +1 more source

An Adaptive Overcurrent Coordination Scheme Withstanding Active Network Operations

open access: yesIEEE 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

Improved Firefly Algorithm for the Optimal Coordination of Directional Overcurrent Relays [PDF]

open access: yesIEEE Access, 2019
In an electrical power network linear and non-linear models are used for directional overcurrent relay (DOCR) coordination issue by applying different heuristic techniques. Nature inspired algorithms (NIA) have found great interest in power system optimization issues.
Tahir Khurshaid   +5 more
openaire   +2 more sources

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