Results 11 to 20 of about 451 (255)
Analytical Model for HF-Losses Caused by 2D Magnetic Fields in Litz Wire
IEEE Open Journal of Power Electronics, 2023 The 2D magnetic field effect arises when the winding height is lower than the window height due to isolation requirements and mechanical constraints. In this situation, most analytical models for calculating HF-losses in Litz wire fail to predict the ...
Qingchao Meng, Jurgen Biela
doaj +1 more source
Energies, 2021 Detection of the axial displacement of power-transformer winding is important to ensure its highly reliable operation. Frequency response analysis is a promising candidate in detecting the axial displacement.
Satoru Miyazaki
doaj +1 more source
IEEE Access, 2022 This paper proposes an interleaved high step-up DC-DC converter with the coupled inductor (CI) and built-in transformer (BIT) for renewable energy applications.
Ramin Rahimi +3 more
doaj +1 more source
Transformer winding type recognition based on FRA data and a support vector machine model
High Voltage, 2020 Frequency response analysis (FRA) is regarded as the most effective technique to detect mechanical faults of transformers. Over the years, FRA measurement data have been collected by utilities into transformer asset databases.
Xiaozhou Mao +5 more
doaj +1 more source
Design Optimization Methodology for Planar Transformers for More Electric Aircraft
IEEE Open Journal of the Industrial Electronics Society, 2021 Isolated DC-DC converters are considered the building blocks of modern aircraft electrical power networks. The high-frequency transformer utilized in such converters is the major contributor to the size and weight besides the thermal management system ...
Mohamed I. Hassan +5 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
High-Efficiency Flicker-Free LED Driver with Soft-Switching Feature
Micromachines, 2022 A novel interleaved DC-DC buck converter is proposed to drive high-brightness light-emitting diodes (LEDs). The circuit configuration mainly consists of two buck converters, which are connected in parallel and use interleaved operation.
Hung-Liang Cheng +4 more
doaj +1 more source
High Voltage, 2020 A simple procedure to estimate series capacitance of a uniform transformer winding from its measured frequency response analysis (FRA) and shunt capacitance is presented. Unlike previously published approaches, this method does not involve any cumbersome
Ashiq Muhammed +3 more
doaj +1 more source
High Voltage, 2018 Interleaving of the high-voltage winding turns is a widely-accepted method for restraining the surge voltage stresses in extra high voltage (EHV) transformers.
Shampa De +3 more
doaj +1 more source
IET Power Electronics, 2021 In this paper, an interleaved zero voltage switching high step‐up converter based on active clamp, coupled inductor (CI), built‐in transformer (BIT), and switched capacitor (SC) is proposed.
Alireza Bagherian +3 more
doaj +1 more source