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An accurate Matlab/Simulink based SiC MOSFET model for power converter applications

In this paper, an analytical model of a silicon carbide power DMOSFET is developed in Matlab/Simulink environment, intended for high performance converter simulations. The proposed Simulink-based model is a highly useful tool that allows users to study system response to transient phenomena and calculate energy losses in a variety of topologies, control strategies and operating conditions. The static characteristics of the model and its performance during hard switching are validated through experimental testing and comparison with similar models in other commercially available simulation platforms. A 1 kW single phase, high frequency inverter is developed using SiC MOSFETs to investigate the accuracy of the proposed model when simulating a complete power converter.