Results 1 to 10 of about 749 (154)

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

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   +2 more sources

Reinforcement learning driven adaptive active frequency drift for fast and reliable islanding detection [PDF]

open access: yesScientific Reports
Islanding detection remains a critical challenge in grid-connected photovoltaic (PV) systems, as failure to detect islanding conditions can compromise power quality, safety, and system stability.
Ahmed G. Abo-Khalil   +5 more
doaj   +2 more sources

A Survey of Islanding Detection Methods for Microgrids and Assessment of Non-Detection Zones in Comparison with Grid Codes [PDF]

open access: yesEnergies, 2022
Detection of unintentional islanding is critical in microgrids in order to guarantee personal safety and avoid equipment damage. Most islanding detection techniques are based on monitoring and detecting abnormalities in magnitudes such as frequency ...
José Antonio Cebollero   +4 more
doaj   +3 more sources

Robust modified passive islanding detection for microgrids using mathematical morphology based dual algorithm [PDF]

open access: yesScientific Reports
The integration of distributed generation (DG) in microgrids has brought the challenge of islanding detection, where a portion of the grid operates independently due to disconnection from the main utility.
Fayez F. M. El-Sousy   +5 more
doaj   +2 more sources

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

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   +5 more sources

Intelligent islanding detection framework for smart grids using wavelet scalograms and HOG feature fusion [PDF]

open access: yesScientific Reports
Unintended islanding presents substantial operational and safety risks in modern electrical distribution networks, particularly as distributed generation (DG) sources increasingly match or nearly match local load requirements.
Kumaresh Pal   +7 more
doaj   +2 more sources

Intelligent Islanding Detection of Microgrids Using Long Short-Term Memory Networks

open access: yesEnergies, 2021
This paper presents a new intelligent islanding detection scheme (IIDS) based on empirical wavelet transform (EWT) and long short-term memory (LSTM) network to identify islanding events in microgrids.
Syed Basit Ali Bukhari   +3 more
doaj   +1 more source

A novel hybrid downsampling and optimized random forest approach for islanding detection and non‐islanding power quality events classification in distributed generation integrated system

open access: yesIET Renewable Power Generation, 2021
The quality of power in modern‐day power system is polluted with increased penetration of converter‐based distributed generations such as wind farm, solar PV system.
Sairam Mishra   +3 more
doaj   +1 more source

A Review of Islanding Detection Techniques for Inverter-Based Distributed Generation

open access: yesEngineering Proceedings, 2023
The classical problem of islanding detection in distributed generation falls into the commonly used categories known as passive, active, and hybrid techniques. These approaches vary in terms of their accuracy, security, and dependability.
Muhammad Waleed Jalil   +2 more
doaj   +1 more source

A Robust Passive Islanding Detection Technique With Zero-Non-Detection Zone for Inverter-Interfaced Distributed Generation

open access: yesIEEE Access, 2022
In this paper, a new and efficient passive islanding detection technique for a grid-connected hybrid distributed generating system has been proposed using Second Generation Wavelet Transform (SGWT) and Maximum Overlap Discrete Wavelet Transform (MODWT ...
B. Pangedaiah   +4 more
doaj   +1 more source

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