Results 11 to 20 of about 26,491 (264)
Mine inverter based on isolation and transformation of power electronic transformer
Gong-kuang zidonghua, 2021 At present, the mine inverter and the power frequency transformer are placed separately, which occupies too much underground working space. And the inverter output voltage has high harmonic content and poor waveform quality.
ZHANG Guilin1,2 +4 more
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Power Transformer Condition Monitoring Based on Evaluating Oil Properties
Machines, 2022 The authors review the techniques applied to diagnose oil aging. Further, the authors put forward a new diagnostic method. It stipulates for an additional high-frequency measuring loop formed in an operating transformer.
Ivan V. Bryakin +4 more
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A New 7 kW Air-Core Transformer at 1.5 MHz for Embedded Isolated DC/DC Application
Energies, 2022 This paper presents the study of air-core transformers for electric vehicles, developing them for medium-power (tens of kWs) converter applications specifically used at a high frequency.
Valentin Rigot +3 more
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Partial Discharge Analysis in High-Frequency Transformer Based on High-Frequency Current Transducer
Energies, 2018 High-frequency transformers are the core components of power electronic transformers (PET), whose insulation is deeply threatened by high voltage (HV) and high frequency (HF). The partial discharge (PD) test is an effective method to assess an electrical
Jun Jiang +5 more
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A novel energy router based on multi‐winding line frequency transformer
IET Generation, Transmission & Distribution, 2023 Energy routers based on the electronic power transformer are suitable for the AC–DC hybrid grid with multiple voltage levels, but their structures are complex.
Zhitao Guan +4 more
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Exploring the Advantages of Transformers for High-Frequency Trading
SSRN Electronic Journal, 2023 This paper explores the novel deep learning Transformers architectures for high-frequency Bitcoin-USDT log-return forecasting and compares them to the traditional Long Short-Term Memory models. A hybrid Transformer model, called \textbf{HFformer}, is then introduced for time series forecasting which incorporates a Transformer encoder, linear decoder ...
Fazl Barez +3 more
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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
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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
Shibuya, Yoshikazu, Fujita, Shigeto
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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
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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
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