Multi-frequency power routing for cascaded H-bridge inverters in smart transformer application Article Swipe
Related Concepts
Transformer
Converters
Smart grid
Electrical engineering
Electronic engineering
Maximum power transfer theorem
Computer science
Voltage
Isolation transformer
Engineering
Power (physics)
Physics
Quantum mechanics
Youngjong Ko
,
Markus Andresen
,
Giampaolo Buticchi
,
Marco Liserre
,
Luca Concari
·
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1109/ecce.2016.7855277
· OA: W2588933125
YOU?
·
· 2016
· Open Access
·
· DOI: https://doi.org/10.1109/ecce.2016.7855277
· OA: W2588933125
The smart transformer is a solid state transformer with advanced control functionalities that can efficiently manage a low-voltage micro-grid by also supporting the medium-voltage grid. Cascaded H-bridge (CHB) converters proved to be a suitable option to realize the MV stage of the smart transformer due to their modularity and multi-level output. Normally the power is equally split among the CHB cells, however, in order to delay failures of the system, certain cells can be unloaded if premature deterioration is detected. In this work, multi-frequency power transfer is used to control the power processed by the dc/dc converters that supply the dc link of the CHB. The potential is analyzed analytically and validated experimentally.
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