Results 21 to 30 of about 2,135,737 (211)

Protection of Microgrids

open access: yes, 2021
The concept of microgrids goes back to the early years of the electricity industry although the systems then were not formally called microgrids. Today, two types of microgrids can be seen: independent and grid connected. The protection requirement of these two types differs as the protection needs of an independent microgrid are intended for ...
Dehua Zheng   +6 more
openaire   +3 more sources

Reducing Microgrids Integration Complexity in Distribution Networks Considering Bidirectional Power Flow in SFCLs

open access: yesIEEE Access, 2022
In this paper, investigations are carried out to explore the application of the well-known unique bidirectional power flow nature of superconducting fault current limiters (SFCLs) to reduce the complexities of integrating microgrids into distribution ...
Mohamed Elsamahy
doaj   +1 more source

Optimizing the roles of unit and non-unit protection methods within DC microgrids [PDF]

open access: yes, 2012
The characteristic behavior of physically compact, multiterminal dc networks under electrical fault conditions can produce demanding protection requirements.
Burt, Graeme   +4 more
core   +4 more sources

Some Security Aspects of Batteries and Power Electronic Converters in a Microgrid

open access: yesIEEE Access, 2023
The motivation to write this paper is a need to contribute to research of methods of defence against intentional attacks on components of hybrid power systems (microgrids) based on renewable energy sources and storage systems.
Luka Matic   +3 more
doaj   +1 more source

A black-box dynamic equivalent model for microgrids using measurement data [PDF]

open access: yes, 2014
A dynamic equivalent black-box model, based on Prony analysis is presented. The proposed model is suitable for dynamic studies of microgrids, considering changes in the active and reactive powers, bus voltages, currents and frequency. The developed model
Roscoe, Andrew   +5 more
core   +4 more sources

Multi-objective optimal scheduling of microgrid with electric vehicles

open access: yesEnergy Reports, 2022
With the increasing global attention to environmental protection, microgrids with efficient usage of renewable energy have been widely developed. Currently, the intermittent nature of renewable energy and the uncertainty of its demand affect the stable ...
Yu Mei   +4 more
doaj   +1 more source

A Novel Protection Method for Single Line-to-Ground Faults in Ungrounded Low-Inertia Microgrids

open access: yesEnergies, 2016
This paper proposes a novel protection method for single line-to-ground (SLG) faults in ungrounded low-inertia microgrids. The proposed method includes microgrid interface protection and unit protection. The microgrid interface protection is based on the
Liuming Jing   +3 more
doaj   +1 more source

Adaptive protection scheme

open access: yesAlexandria Engineering Journal, 2016
This paper aims at modelling an electronically coupled distributed energy resource with an adaptive protection scheme. The electronically coupled distributed energy resource is a microgrid framework formed by coupling the renewable energy source ...
R. Sitharthan   +2 more
doaj   +1 more source

Genetic Algorithm-Based Optimal Protection Scheme for the Coordination of Bi-Directional Overcurrent Relays in a Carbon-Free AC Microgrid

open access: yesEngineering Proceedings, 2023
With the increasing predilection for renewable energy sources across the world, the novel idea of a miniature version of a grid, called a microgrid, has emerged. The efficiency and sustainability of a power grid increase by integrating distributed energy
Umbrin Sultana   +2 more
doaj   +1 more source

Distance protection for microgrids in distribution system [PDF]

open access: yesIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, 2015
Owing to the increasing penetration of distributed generation, there are some challenges for the conventional protection in distribution system. Bidirectional power flow and variable fault current because of the various operation modes may lead to the selectivity and sensitivity of the overcurrent protection decreased.
Hengwei Lin   +3 more
openaire   +3 more sources

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