Within this thesis, a simulation model for APFC was realized. By applying the linearized model, synthesis of the control system of a single-phase diode rectifier with the boost converter was made in a way that the selection and calculation of the parameters for APFC were done first. Selected and calculated simulation parameters for the APFC model are as follows: frequency 50 Hz, switching frequency 100 kHz, input voltage 230 V, output voltage 400 V, output power 1509 W, inductor 0,8 mH and capacitor 2,8 mF. Then the inner current control loop was designed to control the inductor current as well as the outer voltage control loop to control the output voltage. The inductor current was controlled using a PI controller in a way that the phase margin of the open current loop is 45° at the frequency equal to one tenth of the switching frequency. Control of the output voltage was also realized using a PI controller, the only difference is that the phase margin is 45° at the frequency that corresponds to the one tenth of the second harmonic amplitude. Furthermore, simulation of the model was run in the MATLAB Simulink software package and several quantities were analyzed, such as: power factor, THD, inductor current ripple, output voltage ripple etc. Afterwords, stability of the system was tested during the input voltage change over the range from 184 V to 276 V (±20 %), and then the system stability was tested with different load resistances over the range from 𝑅/2 do 2R. Finally, the model analysis was made for the rapid load resistance change from 106 Ω to 53 Ω.