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Doctoral Student

Bishwas Basnet

Hardware development of high-power galvanically isolated DC/DC converter

The need to process hundreds of kilowatts of power efficiently has always been present, but in today's world, we are also challenged to significantly increase the power density. Therefore, the focus of this research is to investigate novel methods and designs to improve the efficiency and power density of galvanically isolated DC/DC converter systems beyond the state-of-the-art topologies. My work will explore avenues such as the three-phase operation of dual active bridge (DAB) type topologies, the impact of cross-linked fluxes, accurate modeling of leakage inductances, high-frequency operation using silicon carbide-based devices, optimization of switching losses using advanced control mechanisms, and magnetics loss modeling using simulations. The ultimate goal of this project is to create a one-of-a-kind high-power, high-frequency, galvanically isolated DC/DC converter that will work efficiently across a wide range of input and output specifications.

Industry partner
Prasad Jayathurathnage
Tero Halkosaari

Danfoss

The need to process hundreds of kilowatts of power efficiently has always been present, but in today's world, we are also challenged to significantly increase the power density. Therefore, the focus of this research is to investigate novel methods and designs to improve the efficiency and power density of galvanically isolated DC/DC converter systems beyond the state-of-the-art topologies. My work will explore avenues such as the three-phase operation of dual active bridge (DAB) type topologies, the impact of cross-linked fluxes, accurate modeling of leakage inductances, high-frequency operation using silicon carbide-based devices, optimization of switching losses using advanced control mechanisms, and magnetics loss modeling using simulations. The ultimate goal of this project is to create a one-of-a-kind high-power, high-frequency, galvanically isolated DC/DC converter that will work efficiently across a wide range of input and output specifications.

Academic supervisor
Paavo Rasilo
Tomi Roinila
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