In this digest, real-time electro-thermal simulation models for power electronic converters are developed. The models replicate the electrical and thermal behavior of the physical system under dynamic load conditions with a high degree of accuracy. The approach is discussed using a simple DC-DC power converter topology and employs a multi-domain modeling approach. The full paper also highlights the challenges of data synchronization between the physical and digital models while running real-time hardware in the loop experiments, which is critical for the effectiveness of the real-time simulation technology. Experimental results show that the developed models predict the behavior of the physical system with a high degree of accuracy, with a maximum average percentage deviation of 2%. This provides a promising approach for developing multidomain real-time digital twins for power electronic converters.
