Phase angle and dead time in dual active bridge designs for electric vehicles and solar charge inverters

Abstract

This paper presents a detailed analytical and simulation centered study of two widely used timing methods / controls in the implementation of Dual Active Bridge (DAB), that is Dead Time and Phase Angle. In this research paper, we will delve deeper into trying to have a well-informed understanding on the impact and relationship between the switching times experienced during the Phase Angle (phase shift) and the Dead Time against the resultant inverter efficient, converter soft switching behavior and finally the output voltage wave form. To come up with a first-hand experience, MATLAB / Simulink models of the said relationship is going to be examined. In conclusion, the results obtained through the conduction of simulations, demonstrates and clearly shows that by optimizing the Phase Angle and the Dead Time in DAB, this greatly improves the performance and efficiency of end user products such as EV's and Inverter charging systems when subjected to varying load conditions during operations.