Measurement-based loss and thermal simulation of hydrogen converter using SiC MOSFET

Hydrogen is gaining importance as an alternate fuel for reducing CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> emissions. This paper presents the design and validation of a 50 kW converter for generating hydrogen. It comprises silicon carbide (SiC) MOSFETs and an isolated gate driver. The converter’s loss characteristics are analyzed through measurement-based simulation and thermal modeling. Its current protection functionality is assessed using a rapid desaturation (DESAT) detection method enhanced with an overdrive circuit. Experimental verification is done under DC load conditions with real-time measurements of output voltage and current, confirming its operational performance.