Fractional-Order Modeling and Controls of a Flyback Converter for Voltage Regulation Tasks

Flyback converters are used in power electronics for voltage regulation tasks thanks to its reduced component design and reliability for managing high power loads given by the transformer electrical isolation. In this paper, the fractional-order modeling, analysis, and control of a flyback converter is performed for voltage regulation tasks. The flyback converter dynamics is modeled using fractional-order representations of the capacitive and inductive elements on the converter using Caputo’s derivative definition. This model is employed to design a fractional-order PID controller for regulation tasks. Obtained results show that fractional-order modeling used for the controller design provides a better response against external disturbances and random noise.