Results 61 to 70 of about 2,477 (219)

MMC‐HVDC Control Parameter Selection for Grid Code Compliance and Improved System Protection Performance Under AC‐Side Faults

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper explores the control parameter selection in modular multilevel converter based high voltage direct current systems to enhance distance protection performance while maintaining stability and grid code compliance under varying grid conditions.
Xiaoxiao Liu, Paul Judge, Geraint Chaffey, Willem Leterme, Dirk Van Hertem   +4 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 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

Impact of distributed PV generation on relay coordination and power quality [PDF]

, 2019
Distributed generation (DG) has gained popularity among electricity end users who are determined to contribute to a cleaner environment by conforming to green and sustainable energy sources for various daily needs. The power system impact of such trends (
Akmal, Muhammad, Al-Naemi, Faris, Al-Tarabsheh, Anas, Iqbal, Nusrat, Meegahapola, Lasantha   +4 more
core   +1 more source

UAV‐Assisted Fault Location Coordinated Strategy for Resilient Distribution Systems

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
Disasters may also damage the communication infrastructure, resulting in untimely reporting of fault information detected by remote fault indicators (RFIs). In this paper, we propose a UAV‐assisted coordination strategy for status collection and fault location in distribution systems.
Haochen Zhang, Chen Chen, Jian Zhong, Zhaohong Bie, Guowei Liu   +4 more
wiley   +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

Development of Economical Hardware Enhancement for Load Break Switch in Smart Distribution Network

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
ABSTRACT This study explores the design and evaluation of an economical hardware platform aimed at enhancing load break switches (LBS) in distribution systems. Simulations conducted using DIgSILENT power factory and PSCAD validated the proposed method.
Praditpong Suksirithawornkul, Teratam Bunyagul, Noppadol Charbkaew, Yotaka Chompusri, Tirapong Kasirawat, Narong Tantichayakorn   +5 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

Optimization Techniques for Directional Overcurrent Relay Coordination: A Comprehensive Review

IEEE Access
This paper provides a comprehensive review of optimization techniques for coordinating directional overcurrent relays in power systems. It covers a wide range of techniques, including conventional and deterministic methods, metaheuristic algorithms, and ...
Tareq Foqha, Samer Alsadi, Osama Omari, Shady S. Refaat   +3 more
doaj   +1 more source

Enabling Temporary Blocking of Offshore Converters Through Grid‐Forming Wind Turbines to Assist HVDC Grid Protection

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
The paper higlights the usage of GFM WTG to enable temporary blocking of the offshore converter in MT‐HVDC systems to reduce protection requirements. It is shown, that smaller DCCB series inductances can be used. During temporary blocking the AC power transfer is interupted but is returned quickly after the converter is brought back into operation ...
Christopher Klein, Thomas Heynen, Miriam Hagmans, Willem Leterme   +3 more
wiley   +1 more source