Results 41 to 50 of about 5,917 (221)

Reliability assessment of microgrid with renewable generation and prioritized loads

open access: yes, 2017
With the increase in awareness about the climate change, there has been a tremendous shift towards utilizing renewable energy sources (RES). In this regard, smart grid technologies have been presented to facilitate higher penetration of RES.
Ansari, O. A., Chung, C. Y., Safar, N.
core   +1 more source

Coordinated operation of parallel-connected inverters for active islanding detection using high frequency signal injection [PDF]

open access: yes, 2013
The high frequency impedance measured at the terminals of inverters connected in a microgrid by means of the injection of a small magnitude, high frequency voltage, has been shown to be a reliable metric to detect islanding.
Blanco Charro, Cristian   +3 more
core   +1 more source

Microgrid Islanding Detection Using D-PMU and Phase Angle Analysis of Negative Sequence Impedance

open access: yesIEEE Access
Unintentional islanding detection is a major challenge during the operation of a microgrid. When islanding occurs, distributed energy resources (DERs) need to be disconnected quickly, under 2 seconds, which makes fast islanding detection crucial.
Asim Chaulagain   +3 more
doaj   +1 more source

Islanding detection in three-phase and single-phase systems using pulsating high-frequency signal injection [PDF]

open access: yes, 2015
This paper analyzes the use of pulsating high-frequency signal injection for islanding detection purposes. Active islanding detection using high-frequency signal injection is an appealing option due to its reduced nondetection zone, reduced cost, and ...
Blanco Charro, Cristian   +3 more
core   +2 more sources

Comprehensive Review of Islanding Detection Methods for Distributed Generation Systems

open access: yesEnergies, 2019
The increased penetration of distributed generation (DG), renewable energy utilization, and the introduction of the microgrid concept have changed the shape of conventional electric power networks.
Min-Sung Kim   +5 more
doaj   +1 more source

RES Based Islanded DC Microgrid with Enhanced Electrical Network Islanding Detection

open access: yesEnergies, 2021
An electrical islanding detection method for DC microgrid (MG) is proposed in this paper. Unlikely conventional AC MG system protection has been challenging for the DC MG system.
Muhammad Umair Shahid   +5 more
doaj   +1 more source

Circular Economy Pathways for Airport Climate Change Mitigation

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Airport operators face growing climate‐change pressures; the circular economy offers pathways to reduce impacts and recover resources. We examine how airport operators apply the circular economy in practice. We use an exploratory qualitative multicase design based on practitioner‐generated documents (e.g., press releases and sustainability ...
Michele Oppioli   +3 more
wiley   +1 more source

Islanding Detection for Microgrid Based on Frequency Tracking Using Extended Kalman Filter Algorithm

open access: yesJournal of Applied Mathematics, 2014
Islanding detection is essential for secure and reliable operation of microgrids. Considering the relationship between the power generation and the load in microgrids, frequency may vary with time when islanding occurs.
Bin Li   +3 more
doaj   +1 more source

Coordinated Load Shedding Control Scheme for Recovering Frequency in Islanded Microgrids

open access: yesIEEE Access, 2020
Supply and demand balance is required to assure the normal operation of microgrids. When unintentional islanding occurs in a microgrid, a load shedding (LS) control scheme is necessary to achieve the power balance and frequency stability of an islanded ...
Can Wang   +4 more
doaj   +1 more source

Analysis of the operation of a microgrid with renewable distributed generation [PDF]

open access: yes, 2015
This article reports the ongoing research on the performance assessment of an experimental microgrid which integrates various renewable energy sources.
Batista, José   +3 more
core   +1 more source

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