Results 21 to 30 of about 16,886,684 (287)
Proposal of Three-Phase High Frequency Transformer Isolation UPS Topologies
Eletrônica de Potência, 2011 A family of double conversion three-phase uninterruptible power system with power factor correction and high-frequency transformer (HFT) isolation topologies is presented in this work.
Carlos G. C. Branco +3 more
doaj +1 more source
High Frequency Transformer Design and Optimization using Bio-inspired Algorithms
Applied Artificial Intelligence, 2018 High frequency (HF) transformer at the isolation stage of SST plays a vital role in deciding the power conversion efficiency of the SST system. This paper proposes a new design procedure for optimization of HF transformer used in SST applications such ...
Jeyapradha Ravichandran Banumathy +1 more
doaj +1 more source
Modelling of High Frequency Converter Transformer with Floating Active Inductor
Elektronika ir Elektrotechnika, 2018 As number of digital electronics and power electronics based devices has risen recently, the fields of application for high frequency transformers have been increased.
Mustafa Konal +3 more
doaj +1 more source
Frequency Dependent Model of Leakage Inductance for Magnetic Components [PDF]
, 2012 Theoretical methods for the calculation of winding losses with respect to frequency have been well documented, but the variation in leakage inductance of magnetic components due to frequency has been less well addressed. In this paper Dowell’s well-known
Wilcock, Reuben +5 more
core +2 more sources
Augmented models of High-Frequency Transformers for SMPS [PDF]
2009 20th International Zurich Symposium on Electromagnetic Compatibility, 2009 The modeling of high-frequency transformers via augmented equivalent circuits is addressed. The augmented models are composed of a low-frequency equivalent and a supplemental element modeled via real rational fitting. They offer both high accuracy levels and a physical meaning that helps the interpretation of simulation results.
MAIO, Ivano Adolfo +3 more
openaire +2 more sources
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
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
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
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko +5 more
wiley +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