Results 31 to 40 of about 33,172 (312)
Modular High-Frequency High-Power Transformers for Offshore Wind Turbines [PDF]
, 2021 Conventional line frequency transformers are commonly used for wind turbines to step up the low-level voltage of the generators to reduce the transmission losses.
Weichong Yao +7 more
core +1 more source
A New Modular Multilevel AC/AC Converter Using HF Transformer
IEEE Access, 2020 This paper proposes a new modular multilevel AC/AC converter using high-frequency (HF) transformer, which has the advantages of modular design, easy expansion, high power density, no circulation current, good output voltage waveform quality and low cost.
Yongqing Meng +6 more
doaj +1 more source
Electric Field Simulations and Analysis for High Voltage High Power Medium Frequency Transformer
Energies, 2017 The electronic power transformer (EPT) raises concerns for its notable size and volume reduction compared with traditional line frequency transformers.
Pei Huang, Chengxiong Mao, Dan Wang
doaj +1 more source
Design Guidelines for High-Power and High-Frequency Transformers
2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019 In power electronics, the tendency to increase power and frequency (in the range of several MHz) has become an actual concern and leads to challenging design of the magnetic components. The traditional design methods need to be adapted to this demand, since high frequency effects in the core behavior need to be considered, and parasitic elements play a
Salinas López, Guillermo +3 more
openaire +2 more sources
Improving Vision Transformers by Revisiting High-Frequency Components
, 2022 The transformer models have shown promising effectiveness in dealing with various vision tasks. However, compared with training Convolutional Neural Network (CNN) models, training Vision Transformer (ViT) models is more difficult and relies on the large-scale training set.
Jiawang Bai +5 more
openaire +2 more sources
IEEE Access, 2021 This paper presents a health analysis technique for transformer winding insulation through thermal monitoring and Fast Fourier Transform (FFT) power spectrum.
Muhammad Aslam +6 more
doaj +1 more source
Low and high frequency model of three phase transformer by frequency response analysis measurement
Open Physics, 2018 The behavior analysis of the transformer is usually achieved by the frequency response analysis (FRA), which is obtained by the application of a very low AC voltage in over a wide frequency range.
Chaouche Moustafa Sahnoune +2 more
doaj +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Frequency Domain Modeling of High Voltage Transformers Using a Nonlinear Least-Square Estimation Technique [PDF]
, 2009 The development of transformer models can be achieved based on experimental frequency response measurements providing access to the windings is available and the physical dimensions are known in order to calculate R, L and C parameter values. Of interest
Mohamed, R, Lewin, P L
core
Convolution-Transformer Adaptive Fusion Network for Hyperspectral Image Classification
Applied Sciences, 2022 Hyperspectral image (HSI) classification is an important but challenging topic in the field of remote sensing and earth observation. By coupling the advantages of convolutional neural network (CNN) and Transformer model, the CNN–Transformer hybrid model ...
Jiaju Li +5 more
doaj +1 more source