Results 11 to 20 of about 108,307 (312)
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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Transient characteristics verification method for DC transformer used in flexible HVDC system
Global Energy Interconnection, 2019 Previous studies have proposed higher requirements for the transient characteristics of a DC transformer used in a flexible high-voltage direct current (HVDC) system to achieve faster sampling speed and meet wider bandwidth requirements of the control ...
Qi Nie +5 more
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DC magnetisation of transformers [PDF]
IEE Proceedings - Electric Power Applications, 2006 A sufficiently high DC component in the current on the secondary side of a transformer causes distortion of the primary side current. Prediction of such distortion relies on the availability of magnetisation curves that extend deep enough into saturation.
Ahfock, A., Hewitt, A. J.
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Energies, 2021 The AC/DC hybrid distribution network is composed of a medium-voltage DC bus, a low-voltage DC bus, and a power electronic transformer, and has the characteristics of multi-voltage level, multi-DC bus, and multi-converter, so its operation mode and ...
Qingwen Peng +5 more
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Design Requirement and DC Bias Analysis on HVDC Converter Transformer [PDF]
E3S Web of Conferences, 2021 The converter transformer plays a critical role in the high-voltage direct current (HVDC) transmission system, which connects but separates the AC grids and the converter.
Peng Weijian +4 more
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Analysis of the Application of Current Transfomer in Low-voltage Flexible DC Microgrid
南方能源建设, 2019 [Introduction] Low voltage flexible DC microgrid is a bridge between DC devices such as energy storage, electric car and mid-voltage DC power grid. As the DC technology develops and many more DC devices connecting to the grid, it′s feasible and necessary
ZHANG Minghan, LU Zikai
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Modular DC‐DC auto‐transformer: Topology, operation, and system design
IET Power Electronics, 2021 Here, a modular DC‐DC auto‐transformer is proposed with a developed scheme of two‐port submodules. The proposed two‐port submodule is composed of six switches and single capacitor, and it is featured with three general working states.
Yang Chen +4 more
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Energies, 2021 This article reports an investigation into ferrite and nanocrystalline materials for the medium-frequency transformer of a dual active bridge DC-DC converter, which plays a key role in the converter’s efficiency and power density.
Sakda Somkun +5 more
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Hybrid and modular multilevel converter designs for isolated HVDC–DC converters [PDF]
, 2018 Efficient medium and high-voltage dc-dc conversion is critical for future dc grids. This paper proposes a hybrid multilevel dc-ac converter structure that is used as the kernel of dc-dc conversion systems.
Adam, G.P. +4 more
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The Performance of an Integrated Transformer in a DC/DC Converter [PDF]
TELKOMNIKA (Telecommunication Computing Electronics and Control), 2017 The separation between the low-voltage part and high-voltage part of the converter is formed by a transformer that transfers power while jamming the DC ring. The resonant mode power oscillator is utilized to allow elevated competence power transfer.
Abdelhadi Namoune +2 more
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