Model-Predictive Control of a Two-Switch Forward Converter

A forward converter is used for high-efficiency dc to dc converter applications. Modeling and control of a two-switch forward converter suitable for a wide range of input voltage applications is presented in this work. The third-order model for continuous conduction mode operation of the converter is considered for closed-loop operation for achieving output voltage regulation. The performance of a model-predictive controller vis-a-vis conventional proportional-integral and sliding-mode controllers is evaluated through simulation of the closed-loop forward converter with a voltage variation of 550V to 1000V as input and fixed output voltages of 15V and 24V.