Mathematical Modeling and Analysis of Interleaved Two-Phase Boost PFC

Power factor correction (PFC) is a technique used to shape the input current of the power supply to be in synchronization with the mains voltage, in order to maximize the real power drawn from the mains. The paper deals with active PFC to shape the input current, thus harmonics are moved to much higher frequencies, making them much easier to filter out. Here an active interleaved two-phase boost converter topology is analyzed. The paper gives an in-depth study of current control and voltage control strategy of PFC. The developed boost converter converts rectified DC input voltage to regulated 400 V DC output voltage. The proposed converter is simulated in MATLAB/Simulink.