Results 31 to 40 of about 4,412,019 (245)

Microgrid Protection Coordination Considering Clustering and Metaheuristic Optimization

open access: yesEnergies, 2023
This paper addresses the protection coordination problem of microgrids combining unsupervised learning techniques, metaheuristic optimization and non-standard characteristics of directional over-current relays (DOCRs).
Javier E. Santos-Ramos   +4 more
semanticscholar   +1 more source

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

Enhancing Microgrid Protection: Wavelet Response Analysis for Islanded and Grid-Connected Modes

open access: yesNorth American Power Symposium, 2023
Microgrid systems have emerged as a viable solution to address the challenges associated with conventional power grids, such as reliability, resiliency, and sustainability.
Jorge I. Cisneros-Saldana   +1 more
semanticscholar   +1 more source

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

Voltage-Based Frequency Synchronization for Phasor Measurements in Microgrid Protection

open access: yes2023 IEEE PES/IAS PowerAfrica, 2023
The accurate measurement of current phasors is crucial for the reliable and effective protection of microgrids. However, the presence of harmonics and variations in the fundamental frequency due to the integration of inverter-based resources (IBRs), can ...
Jorge I. Cisneros-Saldana   +1 more
semanticscholar   +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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