Results 41 to 50 of about 182 (135)

An Intelligent Machine Learning‐Based Algorithm to Adapt the Behaviour of Differential Protection During Sub‐Synchronous Resonance in Smart Grids

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
The smart grid requires self‐healing protection; therefore, this paper proposes an intelligent machine learning‐based algorithm capable of adapting the behaviour of transformer differential protection during SSR. ABSTRACT The smart grid incorporates renewable energy generation sources, such as doubly fed induction generators in wind farms and ...
Salman Rezaei
wiley   +1 more source

Advanced Hosting Capacity Assessment in Distribution Systems Using a Centralised HIL‐Based Setup

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
The paper proposes a two‐stage framework for assessing distributed energy resource (DER) hosting capacity that combines an initial optimisation‐based estimate with real‐time validation using a centralised IEC 61850–compliant Hardware‐in‐the‐Loop (HIL) platform and a digital twin of the IEEE 33‐bus system.
Meysam Pashaei, Seyed Farhad Zandrazavi, Kimmo Kauhaniemi, Hannu Laaksonen   +3 more
wiley   +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

An adaptive virtual impedance fault current limiter for optimal protection coordination of islanded microgrids

IET Renewable Power Generation, 2022
Fault currents of inverter‐interfaced distributed generators (IIDGs) depend on inverter controllers. Thus, IIDGs fault currents are different than those of synchronous‐based DGs, both from the magnitude and waveshape perspectives.
Talal Elemamali Sati, Maher A. Azzouz
doaj   +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

Considering Pilot Protection in the Optimal Coordination of Distance and Directional Overcurrent Relays

Iranian Journal of Electrical and Electronic Engineering, 2015
The aim of the relay coordination is that protection systems detect and isolate the faulted part as fast and selective as possible. On the other hand, in order to reduce the fault clearing time, distance protection relays are usually equipped with pilot ...
Y. Damchi, J. Sadeh, H. Rajabi Mashhadi
doaj  

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

Optimum Coordination Approach for Directional Overcurrent Relays in Interconnected Power Systems Considering Uncertainty in Photovoltaic Generation

IEEE Access
Optimizing the sensitivity and speed of the overcurrent protection system in the presence of distributed generation units while also ensuring the cost-effective design of the fault current limiter (FCL) represents great challenges for engineers.
Mahmoud A. Elsadd, Hossam A. Abd El-Ghany, Mohamed S. Zaky, Almoataz Y. Abdelaziz, Eman S. Ahmed   +4 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

Applying Hybrid PSO to Optimize Directional Overcurrent Relay Coordination in Variable Network Topologies

Journal of Applied Mathematics, 2013
In power systems, determining the values of time dial setting (TDS) and the plug setting (PS) for directional overcurrent relays (DOCRs) is an extremely constrained optimization problem that has been previously described and solved as a nonlinear ...
Ming-Ta Yang, An Liu
doaj   +1 more source