Results 1 to 10 of about 145,879 (189)
Parameter Estimation of Electric Power Transformers Using Coyote Optimization Algorithm With Experimental Verification [PDF]
IEEE Access, 2020 In this work, the Coyote Optimization Algorithm (COA) is implemented for estimating the parameters of single and three-phase power transformers. The estimation process is employed on the basis of the manufacturer's operation reports.
Mohamed I. Abdelwanis +4 more
doaj +3 more sources
Flux control modulation for the dual active bridge DC/DC converter [PDF]
The Journal of Engineering, 2019 This paper introduces a modulation technique for the single-phase dual active bridge (DAB) in which the switching frequency and transformer flux linkage are modulated to achieve improved power transfer characteristics and reduced converter losses.
Niklas Fritz +4 more
doaj +4 more sources
Energies, 2021 Power quality and neutral section are two technical problems that hinder the development of electrified railway to high-speed and heavy railway. The co-phase power supply technology is one of the best ways to solve these two technical problems.
Shaofeng Xie, Yiming Zhang, Hui Wang
doaj +1 more source
Feasibility analysis of neutral grounding by small reactor of HVDC converter transformer
Energy Reports, 2022 Nowadays, the scale of power grid is remarkably increasing and there is a continuous reinforcement of AC–DC hybrid systems. Thus, the single-phase grounding fault currents on the AC grid-side of rectifier and inverter stations increase significantly ...
Ensheng Zhao +5 more
doaj +1 more source
Research on the Magnetostrictive Characteristics of Transformers under DC Bias
Energies, 2023 Direct current (DC) bias leads to increased vibration and noise in transformers. One of the main causes is the magnetostrictive effect of the transformer core.
Xiaoli Yan +4 more
doaj +1 more source
Control of the Transformer Phase Powers Using a Single-Phase Voltage Source
Energies, 2021 Power flow in three-phase distribution grids containing single-phase prosumer voltage sources strongly depends on the RMS value of the voltage of these sources and their phase shifts in relation to the grid voltage.
Tomasz Drabek, Paweł Dybowski
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Direct usage of photovoltaic solar panels to supply a freezer motor with variable DC input voltage [PDF]
, 2020 In this paper, a single-phase photovoltaic (PV) inverter fed by a boost converter to supply a freezer motor with variable DC input is investigated. The proposed circuit has two stages.
Farzan Moghaddam, Ali +1 more
core +2 more sources
Fabrication and experimental analysis of multiple-winding transformers for multiphase supply
Measurement + Control, 2020 This paper aims to fabricate multiple-winding transformers for polyphase supply that means more than the classical three-phase supply. Usually, transformers do not change the phase, that is, from single phase to three phase or vice versa, but according ...
B Jyothi, A Pandian, P Bhavana
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Frontiers in Energy Research, 2022 Aiming at the problems that the existing arc suppression cabinet technology cannot adjust the zero sequence voltage flexibly and the control and hardware implementation of active arc suppression equipment based on power electronics are difficult, a new ...
Wu Lifang +7 more
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Energies, 2022 The aim of this study is to improve the three-phase unbalanced voltage at the secondary side of a distribution transformer. The proposed method involves compensation sources injecting three different single-phase currents into the connected point of a ...
Chien-Kuo Chang +2 more
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