Results 71 to 80 of about 749 (154)

Intelligent islanding detection in smart microgrids using variance autocorrelation function‐based modal current envelope

IET Smart Grid, Volume 7, Issue 6, Page 1019-1035, December 2024.
This paper proposes and demonstrates an efficient and accurate approach to islanding detection based on the Variance Autocorrelation Function of a Modal Current Envelope (VAMCE) technique. The VAMCE methodology is better suited for islanding detection because of its response to current sensitivity under islanding scenarios but not under normal ...
Shanzah Naseem, Sadiq Ahmad, Saddam Aziz, Muhammad Ali, Kazi N. Hasan, Ayaz Ahmad, Abdullah Shoukat   +6 more
wiley   +1 more source

Age effects on autism heritability and etiological stability of autistic traits

Journal of Child Psychology and Psychiatry, Volume 65, Issue 9, Page 1135-1144, September 2024.
Background Autism and autistic traits onset in childhood but persist into adulthood. Little is known about how genetic and environmental factors influence autism and autistic traits into adulthood. We aimed to determine age effects on the heritability of clinically diagnosed autism and the etiological stability of autistic traits from childhood to ...
Miriam I. Martini, Agnieszka Butwicka, Ebba Du Rietz, Aleksandra Kanina, Mina A. Rosenqvist, Henrik Larsson, Paul Lichtenstein, Mark J. Taylor   +7 more
wiley   +1 more source

From educator to facilitator: Healthcare professionals' experiences of, and views about, delivering a type 1 diabetes structured education programme (DAFNEplus ) informed by behavioural science

Diabetic Medicine, Volume 41, Issue 8, August 2024.
Abstract Aims The DAFNEplus programme incorporates behaviour change techniques into a modified educational intervention and was developed to help address the glycaemic drift observed amongst graduates of standard DAFNE programmes. As the programme's success will be contingent on staff buy‐in, we explored healthcare professionals' experiences of, and ...
Julia Lawton, David Rankin, Elaine Scott, Fabiana Lorencatto, Chiara Gericke, Simon R. Heller, Nicole de Zoysa, the DAFNEplus Study Group   +7 more
wiley   +1 more source

Soil Moisture Memory: State‐Of‐The‐Art and the Way Forward

Reviews of Geophysics, Volume 62, Issue 2, June 2024.
Abstract Soil moisture is an essential climate variable of the Earth system. Understanding its spatiotemporal dynamics is essential for predicting weather patterns and climate variability, monitoring and mitigating the effects and occurrence of droughts and floods, improving irrigation in agricultural areas, and sustainably managing water resources ...
Mehdi Rahmati, Wulf Amelung, Cosimo Brogi, Jacopo Dari, Alessia Flammini, Heye Bogena, Luca Brocca, Hao Chen, Jannis Groh, Randal D. Koster, Kaighin A. McColl, Carsten Montzka, Shirin Moradi, Arash Rahi, Farnaz Sharghi S., Harry Vereecken   +15 more
wiley   +1 more source

Islanding Detection and Power Quality Diagnosis of Wind Power Integrated Microgrid with Reduced Feature Trained Novel Optimized Random Decision Forest

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
Distributed generations (DGs) have been increasingly addressing the ongoing power deficit in the electricity market. However, a significant concern in DG‐integrated microgrids is the detection of accidental islanding. To tackle this issue, this article proposes a cost‐friendly, novel data‐driven passive islanding detection scheme named EEMD‐HOBRC ...
Sairam Mishra, Ranjan K. Mallick, Debadatta A. Gadanayak, Pravati Nayak, Aymen Flah, Claude Ziad El-Bayeh, Habib Kraiem, Lukas Prokop, Longxing Wu   +8 more
wiley   +1 more source

An Effective Islanding Detection Method for Distributed Generation Integrated Power Systems Using Gabor Transform Technique and Artificial Intelligence Techniques

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
Incorporating distributed generation (DG) technology into modern power systems heralds a multitude of technological, economic, and environmental advantages. These encompass enhanced reliability, reduction in power losses, heightened efficiency, low initial investment requirements, abundant availability, and a minimized environmental footprint. However,
Mohannad Ghunnam, Hussain Shareef, Zahi M. Omer, Aziah Khamis, Mahdiyeh Eslami, Zhien Zhang   +5 more
wiley   +1 more source

Dual-Indexed Ensemble Kalman Filtering-Based Anti-Islanding Detection Methods for AC Microgrids

IEEE Access
This paper presents a novel Ensemble Kalman Filter (EnKF)-based passive anti-islanding method designed to enhance the reliability and stability of AC microgrids amid increasing integration of distributed energy resources (DERs). The dynamic and nonlinear
Sohaib Tahir Chauhdary, Hisham Alharbi, Abdullah S. Bin Humayd, Talal Alharbi   +3 more
doaj   +1 more source

On the Injection of Sub/Inter-Harmonic Current Components for Active Anti-Islanding Purposes

Energies, 2018
Active anti-islanding schemes that are based on the injection of harmonic currents, such as the measurement of the impedance at a specific frequency or similar techniques, have been proposed for anti-islanding protection in photovoltaic (PV) systems due ...
Dionisis Voglitsis, Fotis Valsamas, Nick Rigogiannis, Nick Papanikolaou   +3 more
doaj   +1 more source

A Discussion of Anti-islanding Protection Schemes Incorporated in a Inverter Based DG [PDF]

, 2011
The discussion in this paper is about the local anti-islanding protection techniques that are incorporated in a inverter based DG. The most widely used passive and active techniques along with their suitability to reduce the Non-detection zone (NDZ) are ...
Basu, Malabika, Gaughan, Kevin, Hanif, Mohamed Moin   +2 more
core   +1 more source

Generation of internal gravity waves by penetrative convection

, 2015
The rich harvest of seismic observations over the past decade provides evidence of angular momentum redistribution in stellar interiors that is not reproduced by current evolution codes.
Belkacem, K., Goupil, M. J., Pinçon, C.
core   +3 more sources