Results 41 to 50 of about 1,169 (119)

Optimal Adjustment of Dualsetting Overcurrent Relays in Inverter-Based Microgrids [PDF]

open access: yesIranian Journal of Electrical and Electronic Engineering, 2023
Increasing the penetration of distributed generation (DG) systems in power systems has many advantages, but it also has problems, including interference with the proper functioning of the protection systems.
Seyed Masoud Barakati, Farzad Tahmasebi
doaj  

A Practical Protection Coordination Strategy Applied to Secondary and Facility Microgrids

open access: yesEnergies, 2012
In a conventional distribution system, protection algorithms are designed to operate on a unidirectional high fault-current level. In a microgrid, a fault current from distributed generation (DG) may bring about a relay malfunction because of the ...
Woo-Kyu Chae   +5 more
doaj   +1 more source

A Protection Method for Inverter-based Microgrid Using Current-only Polarity Comparison

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
The design of an effective protection system for inverter-based microgrids is a complicated engineering challenge. This is due to the fact that inverters have limited fault current capabilities, and that the conventional overcurrent protection is not ...
Bin Wang, Liuming Jing
doaj   +1 more source

A Comprehensive Review on Differential Protection Schemes in IBR-Dominated Microgrids

open access: yesIEEE Access
This review paper provides a systematic examination of differential protection schemes in microgrids, particularly focusing on configurations with electronically coupled Distributed Energy Resources (DERs).
Saeed Sanati   +4 more
doaj   +1 more source

Advanced Microgrid Protection Utilizing Zero Sequence Components With Hard-Ware-in-the-Loop Testing

open access: yesIEEE Access
Microgrid protection and ground fault management are critical aspects of modern power distribution systems, especially with the increasing integration of Distributed Generators (DGs) such as renewable energy sources.
Zahra Ghanem   +7 more
doaj   +1 more source

A Novel Approach for Microgrid Protection Based upon Combined ANFIS and Hilbert Space-Based Power Setting

open access: yesEnergies, 2016
Nowadays, the use of distributed generation (DG) has increased because of benefits such as increased reliability, reduced losses, improvement in the line capacity, and less environmental pollution.
Ali Hadi Abdulwahid, Shaorong Wang
doaj   +1 more source

The Impact of DG Access on Microgrid Current Protection

open access: yes发电技术, 2019
When distributed generator (DG) is connected to the microgrid, the microgrid will change from single source system to multiple source system, which will change the power flow distribution and fault short-circuit current flow of the original network, the ...
Jing DING   +4 more
doaj   +1 more source

Advanced centralized protection system for AC microgrids using TW-DWT techniques

open access: yesEnergy Conversion and Management: X
Microgrid protection has made significant strides in recent years, yet distribution system operators face substantial challenges. The advent of microgrid operation has revealed the limitations of existing protection devices, particularly in recognizing ...
Asmaa M. Aboelezz   +5 more
doaj   +1 more source

Modelling and Fault Protection Analysis of a DC Microgrid using Voltage Source Converter and Relays

open access: yesITEGAM-JETIA
A direct current (DC) microgrid has been the preferred power system in recent years because of the system's overall efficiency. Finding a suitable protection strategy is the primary issue with DC microgrids.
Ayya Chaithanya   +4 more
doaj   +1 more source

Novel High-Speed Protection Strategy for Inverter-Dominated AC Microgrid Using Particle Filter Algorithm

open access: yesIEEE Access
AC microgrids are a contemporary adaptation of traditional power distribution networks, propelled by the rapid integration of renewable energy resources. Yet, their dynamic operational nature poses distinct protection & control challenges.
Nauman Ali Larik   +4 more
doaj   +1 more source

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