Efficiency and Transfer function calculation of the Buck-Boost converter with ideal flow control

The voltage regulator is designed based on a transfer function of the system pre-converter with ideal current control. This transfer function is obtained by first obtaining the system equation for the preconverter with ideal current control. Subsequently, we look for a possible regime solution for a sinusoidal power supply and then arrive at the transfer function via linearization of the system equation around the solution in regime. The calculations are verified by using Matlab/Simulink on the system with considering two buck boost converters connected in parallel. The control scheme used in simulation is feed forward control scheme.