dr Piotr Dworakowski
Employment
- Power converters team leader at SuperGrid Institute
Keywords Help
- dc collector network
- high voltage power converters
- -ferrite core, gapped magnetic core, hysteresis loop, medium frequency transformer, power loss, preisach model, preisach distribution function
- average air gap length
- dc-dc power converters
- high frequency power converter
- hvdc
- hysteresis loop
- magnetic permeability
- magnetizing inductance
Publications
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total: 25
Catalog Publications
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Experimental EMI study of a 3-phase 100kW 1200V Dual Active Bridge Converter using SiC MOSFETs
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Modelling of a 25 kV-50 Hz Railway Infrastructure for Harmonic Analysis
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Power Hardware In-the-Loop validation of DC-DC power converter for offshore wind energy
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Modelling and analysis of medium frequency transformers for power converters
PublicationThe evolutions in power systems and electric vehicles, related to the economic opportunities and the environmental issues, bring the need of high power galvanically isolated DC-DC converter. The medium frequency transformer (MFT) is one of its key components, enabled by the increasing switching frequency of modern power semiconductors like silicon carbide transistors or diodes. The increased operating frequency offers small...
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Determination of Mathematical Model Parameters of a Medium Frequency Transformer
PublicationThe paper presents the results of experimental studies of the medium frequency transformer. The object of the research was a prototype of a single-phase transformer with a core made of ferrite I-core elements and windings made of Litz conductors. The research was carried out to determine the parameters of the transformer's mathematical model. The scope of the tests included determining the magnetic hysteresis loop and measuring...
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