Results 41 to 50 of about 813 (142)

Harmonic Detection for Power Grids Using Adaptive Variational Mode Decomposition

Energies, 2019
The harmonic pollution problem in power grids has become increasingly prominent with the large-scale application of power electronic equipment, nonlinear loads, and renewable energy.
Guowei Cai, Lixin Wang, Deyou Yang, Zhenglong Sun, Bo Wang   +4 more
doaj   +1 more source

Study on a hybrid algorithm for accurate ripple detection in DC microgrids

IET Power Electronics, 2023
With the advantages of the low cost of transmission lines and high efficiency, the DC microgrid has become a rising star in the low‐voltage network.
Yongjun Zhang, Mingli Chen, Wenyang Deng, Kanghua Zhong   +3 more
doaj   +1 more source

Single‐Photon Emission From TMDCs through Strong Coupling to EQ Plasmon Modes of an Au Metasurface

Nanophotonics, Volume 15, Issue 11, 13 June 2026.
Compact, deterministic solid‐state single‐photon sources that operate at room temperature and integrate with planar nanophotonics are essential for the development of scalable quantum photonic technologies. This work presents a TMDC monolayer strongly coupled to a gold (Au) metasurface featuring an electric quadrupole mode, enabling high‐purity single ...
Andergachew Mekonnen Berhe, Haroldo T. Hattori, Andrey E. Miroshnichenko   +2 more
wiley   +1 more source

Normative T1 and T2 Brain Atlases Across the Adult Lifespan in a Chinese Cohort: Multicenter Quantitative MRI Benchmarks for Ageing and Neurodegenerative Research

Human Brain Mapping, Volume 47, Issue 8, June 1, 2026.
Normative voxel‐wise T1 and T2 brain atlases were constructed from 947 healthy adults across 11 imaging centers. The atlases model age‐ and sex‐related trajectories with high intersite reproducibility, providing quantitative reference maps for individual‐level interpretation and harmonized studies of brain aging and neurodegeneration.
Junjie Wang, Gian Franco Piredda, Tom Hilbert, Hongjian He, Jean‐Philippe Thiran, Tianyi Qian, Yi Sun, Peipeng Liang, Tobias Kober, Kuncheng Li   +9 more
wiley   +1 more source

Real-Time Wave Energy Converter Control Using Instantaneous Frequency

Applied Sciences
Wave Energy Converters (WECs) rely on effective Power Take-Off (PTO) control strategies to maximize energy absorption under dynamic sea conditions.
Inyong Kim, Ted K. A. Brekken, Solomon Yim, Brian Johnson, Yue Cao, Pranav Chandran   +5 more
doaj   +1 more source

A Hilbert Transform-Based Smart Sensor for Detection, Classification, and Quantification of Power Quality Disturbances

Sensors, 2013
Power quality disturbance (PQD) monitoring has become an important issue due to the growing number of disturbing loads connected to the power line and to the susceptibility of certain loads to their presence.
Roque A. Osornio-Rios, Rene J. Romero-Troncoso, David Granados-Lieberman, Martin Valtierra-Rodriguez, Luis A. Morales-Hernandez   +4 more
doaj   +1 more source

A Hybrid Algorithm for Recognition of Power Quality Disturbances

IEEE Access, 2020
An algorithm making use of hybrid features of Hilbert transform (HT) and Stockwell transform (ST) to identify the single-stage and multiple (multi-stage) power quality disturbances (PQDs) is introduced in this manuscript.
Rajkumar Kaushik, Om Prakash Mahela, Pramod Kumar Bhatt, Baseem Khan, Sanjeevikumar Padmanaban, Frede Blaabjerg   +5 more
doaj   +1 more source

A Comprehensive Review of Intelligent Fault Diagnosis and Resilient Fault‐Tolerant Control in the Design of Modern Modular Multilevel Converters

Engineering Reports, Volume 8, Issue 5, May 2026.
This review evaluates advanced intelligent fault diagnosis and resilient fault‐tolerant control strategies for modular multilevel converters (MMCs). It highlights how integrating machine learning with robust control architectures enhances reliability and operational continuity, providing a roadmap for developing more resilient, self‐healing power ...
Muhammad Haris Saleem, Arslan Ahmed Amin, Zuhair A. Alqarni, Umair Shahzad   +3 more
wiley   +1 more source

Stationary and Nonstationary Influences of Teleconnections on Terrestrial Water Storage Anomalies in Vietnam

JAWRA Journal of the American Water Resources Association, Volume 62, Issue 2, April 2026.
ABSTRACT Previous studies of teleconnection (TC) impacts on Terrestrial Water Storage Anomalies (TWSA) rarely focus on Vietnam or on the nonstationary nature of TC–TWSA relationships. This study addresses these gaps by examining both stationary and nonstationary TC influences on TWSA using correlation analysis (Pearson and cross‐spectral methods) and ...
Hoa Thi Pham, Joseph Awange, Sten Claessens   +2 more
wiley   +1 more source

Shafting misalignment fault diagnosis by means of motor speed signal and SVD-HT method

Journal of Measurement Science and Instrumentation, 2022
Aiming at the deficiency of diagnosis method based on vibration signal, a novel method based on speed signal with singular value decomposition and Hilbert transform (SVD-HT) is proposed. The fault diagnosis mechanism based on the speed signal is obtained
YU Zhen, AN Qi, SUO Shuangfu, QIU Zurong
doaj