Results 21 to 30 of about 332,517 (295)

Avoiding the non-detection zone of passive loss-of-mains (islanding) relays for synchronous generation by using low bandwidth control loops and controlled reactive power mismatches [PDF]

open access: yes, 2014
Generation connected to electrical distribution systems requires reliable and timely detection of loss of-mains (islanding). Passive loss of mains detection relays typically use measurements of parameters such as frequency, phase, and the magnitudes of ...
Roscoe, Andrew   +2 more
core   +1 more source

DG System Using PFNN Controllers for Improving Islanding Detection and Power Control

open access: yesEnergies, 2019
In this study, an intelligent controlled distributed generator (DG) system is proposed for tracking control and islanding detection. First, a DC/AC inverter with DC power supply is adopted to emulate a DG system and control the active and reactive power ...
Kuang-Hsiung Tan, Chien-Wu Lan
doaj   +1 more source

A comprehensive literature review of conventional and modern islanding detection methods

open access: yesEnergy Strategy Reviews, 2022
Distributed Energy Resources (DER) offer significant advantages by means of raising reliability of distribution system, providing clean source of electricity and reduction in fossil fuel consumption.
Nauman Ali Larik   +4 more
doaj   +1 more source

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

An Intelligent Deep Convolutional Neural Networks-Based Islanding Detection for Multi-DG Systems

open access: yesIEEE Access, 2022
Unintentional islanding is a problem in electrical distribution networks; it happens when the central utility is unintentionally separated from the rest of the distributed power system.
Arif Hussain   +2 more
doaj   +1 more source

An Effective Index for Islanding Detection Based on Fast Discrete S-Transform

open access: yesAdvances in Electrical and Electronic Engineering, 2019
Passive methods of islanding detection have the advantage of not perturbing the system, but they suffer from large Non-Detection Zone (NDZ) and unpredictable detection time. In this paper, a new passive scheme for islanding detection, based on estimating
Solgun Salimi   +2 more
doaj   +1 more source

Islanding detection scheme for converter‐based DGs with nearly zero non‐detectable zone [PDF]

open access: yesIET Generation, Transmission & Distribution, 2019
This study presents a new method for detecting an islanding event in a microgrid with embedded converter‐based distributed generation (DG). Unlike other schemes, the proposed scheme injects negligible perturbations into the microgrid after the generation of an alert signal.
Om Hari Gupta   +2 more
openaire   +1 more source

An innovative hybrid method for islanding detection using fuzzy classifier for different circumstances including NDZ

open access: yesJournal of Radiation Research and Applied Sciences, 2022
Distributed energy resources (DERs) are an alternative to conventional fossil fuel-based energy resources for a pollution-free operation. But the integration of these DERs to the main grid comes with certain challenges, out of which unintentional ...
Yasser A. Elshrief   +6 more
doaj   +1 more source

The diagnostic performance and clinical value of deep learning-based nodule detection system concerning influence of location of pulmonary nodule

open access: yesInsights into Imaging, 2023
Background The deep learning-based nodule detection (DLD) system improves nodule detection performance of observers on chest radiographs (CXRs). However, its performance in different pulmonary nodule (PN) locations remains unknown. Methods We divided the
Seulgi You   +10 more
doaj   +1 more source

Performance analysis of power system parameters for islanding detection using mathematical morphology

open access: yesAin Shams Engineering Journal, 2021
Islanding detection is imperative for the protection of distribution system supported by distributed generation. The accuracy of islanding detection technique mainly depends on the selection of suitable parameter.
Safdar Raza   +3 more
doaj   +1 more source

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