Model-based Optimization of SEPIC DC-DC Converter

The manuscript presents the application of an approach to improve the dynamics of power electronic devices, based on the optimization of the transient process. This approach is realized by using a mathematical model of the converter and a reference curve for the output voltage. In this way, using the initial values of the circuit elements and setting the limits of their change, new ones are determined, through which an aperiodic transient process with a minimum duration is achieved. Thus, better qualities of power electronic devices are achieved not only through optimal synthesis of control, but also by using optimal design of the power circuit itself. The proposed approach is suitable not only for the purposes of training in power electronics, but also for the needs of development and design activities.