Results 1 to 10 of about 21,850 (166)
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
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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
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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
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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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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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IEEE Access, 2020 High frequency (HF) ac linked converter functions well to interface between buses with different voltage types. Using a three-phase-to-single-phase matrix converter, a single-phase cyclo converter, and a HF transformer, we can compose a HF ac linked ...
Yushan Liu +5 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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Energies, 2021 Multi-cell converters are widely used in medium-voltage AC drives. This equipment is based on power cells that operate with low-voltage-rating semiconductors and require an input multipulse transformer.
Eduardo Espinosa +5 more
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Gong-kuang zidonghua, 2022 The coal mine power supply and distribution system usually adopts the neutral point non-effectively grounded method. Most of the power supply lines in this method use cable lines.
SI Weibin +6 more
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