Results 21 to 30 of about 1,713,151 (356)
Enhanced DAB for Efficiency Preservation Using Adjustable-Tap High-Frequency Transformer
IEEE transactions on power electronics, 2020 Efficient dc–dc power-conversion with wide-span voltage-regulation is crucial to a sustainable and robust power electronics system. Dual-active-bridge (DAB) offers straight-forward regulation and its transformer enables voltage step-up/down required for ...
Armin Jafari +3 more
semanticscholar +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
High frequency model of transformer winding
Electrical Engineering in Japan, 2003 AbstractA high frequency model of transformer winding is used to analyze the voltage oscillations due to various excitations such as the very fast transient overvoltage which occurs at the time of disconnecting switch operations. Usually, a circuit of interlinked inductances and capacitances is used for this purpose, in which circuit parameters have to
Yoshikazu Shibuya, Shigeto Fujita
openaire +2 more sources
Geometry optimization and characterization of three-phase medium frequency transformer for 10kVA isolated DC-DC converter [PDF]
, 2017 Three-phase Dual Active Bridge converter is advisable for the High-power DC-DC conversion system. In the ac link, galvanically isolated transformer operated at a medium frequency range provides stepping up or down of the secondary bridge voltage. This
Lee, Youngsil +3 more
core +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
Monolithic flux transformer-coupled high-Tc dc SQUID magnetometers [PDF]
, 1995 YBa/sub 2/Cu/sub 3/O/sub 7-x/ based monolithic flux transformer-coupled high-T/sub c/ DC SQUID magnetometers operating up to 73 K have been realized. The devices are characterized by high values of the modulation voltage, up to 32 /spl mu/V at 40 K.
Brons, G.C.S. +4 more
core +2 more sources
Investigation of the Coupling Paths of a Galvanically Isolated AC/AC Converter [PDF]
, 2007 A galvanically isolated three-phase AC/AC converter with a high-frequency AC-link has been analyzed from an EMC point of view. This is a special configuration because of a large number of switches, a high frequency transformer, and a fourwire output. The
Ferreira, Braham +4 more
core +2 more sources
Frequencies Dominations for Different Rating of Distribution Transformer under Transients [PDF]
, 2020 Power transients faults on high voltage lines are prominently due to high frequency transients. These transients affect the predicted life and efficiency of equipment.
Faisal, Haseeb +3 more
core
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