Results 41 to 50 of about 9,388 (253)
DC transformer modeling and control of DC-DC buck converter
International Journal of Power Electronics and Drive Systems (IJPEDS), 2019 Switching Power Converters convert one form of power to another with high ef-ciency and accurate control.One of the most widely used DC-DC Converter is Buck Converter. Control is invariably required to maintain the output voltage/current in spite of variations in source/load. In order to design the controller and gain insight about the system a dynamic
Sarun Soman +3 more
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High frequency and high power density transformers for DC/DC converter used in solar PV system [PDF]
, 2010 This paper presents and investigates planar and coaxial high frequency power transformers used for DC/DC converters in a three phase photo voltaic (PV) power systems.
S. Stegen +11 more
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Diance yu yibiaoUnder the influence of DC bias, the iron core of the current transformer is prone to saturation, causing the ratio error to shift towards negative direction and the phase error to shift towards positive direction, resulting in measurement inaccuracy ...
YIN Shihong +5 more
doaj +1 more source
IET Generation, Transmission & Distribution, 2022 This paper presents a reluctance‐based model considering the frequency‐dependent loss nature of the windings for the analysis of three‐phase five‐leg transformers under grid voltages with direct current (DC) bias.
Sevket Canturk +3 more
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The response of transformers to geomagnetically induced- like currents [PDF]
, 2014 Includes bibliographical references.This dissertation discusses the development and implementation of a rigorously developed protocol for characterizing and testing transformers with GIC-like currents based on their magnetization curve characteristics ...
Chisepo, Hilary K
core
DC Power Distribution Networks with Direct Current Transformers [PDF]
The shift towards DC power distribution networks, enabled by power electronics technologies, is changing the nature of electrical power systems. Nowadays, DC power distribution networks can effectively support the high penetration of distributed energy ...
Pillon Barcelos, Renan
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Study of the decoupling magnetic integrated high‐frequency transformer for DC/DC converter
IET Power ElectronicsThe isolated DC/DC converter plays an irreplaceable role in the development of the DC microgrid. However, the multiple discrete high‐frequency transformers occupy considerable volume in power converters due to the connection of multiple isolated ...
Dezhi Chen +4 more
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Compact Modular High-Frequency Transformers Integrated with SiC MOSFETs for Isolated DC-DC Converters [PDF]
With the growth of renewable energy, electric vehicles, and the smart transformer market, isolated DC-DC converters have become indispensable as they provide galvanic isolation for protection and voltage transformation.
Yao, Weichong
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The Journal of Engineering, 2019 When the ultra-high-voltage direct current (UHVDC) transmission system operates in a monopolar ground return mode, an enormous DC current flows into earth via the DC grounding electrode in the converter station and then comes into the AC system around ...
Fangjie Wu +3 more
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DC-DC transformer multiphase converter with transformer coupling for two-stage architecture
2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2010 This paper presents an analysis of a very high efficiency topology based on a multiphase converter where the coupling among the phases is done by means of transformers. Since energy is not stored in the transformers, it is transferred directly from the input to the output. This topology along with its control strategy, were previously reported in state
M. C. Gonzalez +5 more
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