Results 41 to 50 of about 247 (173)

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

Energies, 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, ChiaKwang Tan, A.H.A. Bakar, Hang Seng Che, Jorinda Y.R. Wong   +4 more
doaj   +1 more source

Enhancing distribution generator impact mitigation using an adaptive protection scheme based on modified pelican optimization algorithm and active database management system

Energy Science & Engineering, 2023
This paper addresses the challenge of protecting electrical networks in the presence of distribution generators (DGs). The use of DGs affects fault currents, leading to miscoordination between protection relays and causing constraints on network ...
Mohamed Abdelhamid, Salah Kamel, Hamed Zeinoddini‐Meymand   +2 more
doaj   +1 more source

Review of Fault Detection Methods in Microgrids: From Conventional to Innovative Perspective

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
The increasing global energy demand and the limitations of conventional resources have intensified the need for flexible, reliable, and sustainable energy solutions, highlighting the importance of microgrids. This study presents a comprehensive review of fault detection and management methods in microgrids, comparing traditional, signal processing ...
Mehmet Hasir, Alper Nabi Akpolat, Kürşat Ayan   +2 more
wiley   +1 more source

Comprehensive Study of DC Microgrids Protection: Challenges, Cutting‐Edge Techniques, Machine‐Learning‐Driven Solutions

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
ABSTRACT This paper provides a comprehensive examination of the evolving protection challenges within DC microgrids powered by renewable resources and energy storage systems. It begins by delineating the methodological framework of conventional protection, critically assessing schemes based on current, voltage, and impedance to expose their limitations
Mohamed Elmadawy, Ahmed Shahin, Abdelhady Ghanem, Almoataz Y. Abdelaziz, Fujin Deng, Ahmad S. Ayub, Abdalbaset Mnider, Sayed Abulanwar   +7 more
wiley   +1 more source

Assessment of an Overcurrent Protection Strategy Based on Thermal Stress Curves in Distribution Networks Under Reconfiguration Scenarios

IEEE Access
Network reconfiguration enables the restoration of power supply in interrupted areas after faults or planned maintenance events. However, changes in network topology can often lead to alteration in the direction and magnitude of fault currents ...
Michele Rojnic, Rene Prenc, Vedran Kirincic, Milos Bekovic   +3 more
doaj   +1 more source

A Novel Mesh‐Type Medium‐Voltage Distribution Network Topology Enabled by Soft Open Points: Architecture Variants, Capability Analysis, and Operational Strategy

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
This paper proposes a novel mesh‐type medium‐voltage distribution network topology enabled by soft open points (SOPs) to achieve system‐wide continuous power flow regulation and overcome the limitations of conventional radial architectures. To ensure efficient integration, a multi‐objective stochastic planning model and a three‐tiered control strategy ...
Chen Guo, Honggang Jia, Jian Zeng, Zhiqi Zhang, Xingxing Zhou   +4 more
wiley   +1 more source

A Novel Protection Scheme for Solar Photovoltaic Generator Connected Networks Using Hybrid Harmony Search Algorithm-Bollinger Bands Approach

Energies, 2020
This paper introduces a new protection system for solar photovoltaic generator (SPVG)-connected networks. The system is a combination of voltage-restrained overcurrent relays (VROCRs) and directional overcurrent relays (DOCRs).
Vipul N. Rajput, Kartik S. Pandya, Junhee Hong, Zong Woo Geem   +3 more
doaj   +1 more source

Decentralised Zone‐Based Protection of Radial Smart Grids Using a Multi‐Agent Scheme

IET Smart Grid, Volume 9, Issue 1, January/December 2026.
A decentralised zone‐based protection is proposed where a multi‐agent scheme is used to manage faults using local agents assigned to each zone of smart grids. ABSTRACT This paper proposes a multi‐agent, zone‐based protection scheme for modern radial smart distribution grids with high penetration of Distributed Energy Resources (DERs).
Hamed Rezapour, Sadegh Jamali, Pierluigi Siano, Josep M. Guerrero   +3 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

A q component‐based adaptive protection coordination optimisation using overcurrent relays in coordination with fuses for hybrid microgrid

IET Generation, Transmission & Distribution, 2021
In a hybrid microgrid, the overcurrent relays (OCRs) must sense the changes in the fault currents while the microgrid switches from the grid‐connected to the islanded mode of operation. Further, for the different types of distributed generator (DG), such
Manjeet Singh
doaj   +1 more source