Procedure for Modeling a Boost Converter for UPS Using State Variables

This work describes a procedure to model a Boost converter using State Variables. An example will be taken to describe the procedure, a converter used within a UPS that must deliver a constant voltage of 400V to power a bus. The input voltage of this converter is given by a set of batteries that can be fully or partially charged, so the input voltage can vary between two possible extreme values. An analysis of the Boost converter circuit will be carried out as an introduction to later carry out the corresponding modeling. This modeling will allow to analyze its stability, the variations in the output voltage in the face of changes in the input, as well as the different disturbances that may occur.