Design Challenges of a SiC-based MVDC Power Supply for Deep-Sea Applications

Abstract

Design challenges of medium-voltage DC/DC converter for deep-sea applications using silicon carbide (SiC) power MOSFET modules are reviewed. Challenges of high-pressure conditions at deep-sea operation are presented and the pressure tolerance of power electronic components is investigated based on existing literature. Several topologies for high-power DC/DC conversion are reviewed. Power loss estimations are performed on a dual active bridge using SiC discrete devices and power modules with data provided by the manufacturers. The simulations are performed in PLECS/Simulink.