Power loss evaluation for active and magnetic components in a SiC MOSFET-based power electronic system

This paper introduces a general method to evaluate the power losses of active (power semiconductors) and magnetic (inductors) components in power electronic systems. The bidirectional current conduction of silicon-carbide MOSFETs is analyzed to more accurately estimate the conduction and switching losses. Compared to conventional methods, the core loss of the magnetic components is estimated in a more accurate and generalized way, which is suited to non-sinusoidal flux waveforms. Simulation and experimental results verify the proposed method.