Design and simulation of a Buck – Boost PFC converter with the approach of reducing the THD of input current

Behnia, Puya

doi:10.30511/pcdp.2025.2073352.1049

Design and simulation of a Buck – Boost PFC converter with the approach of reducing the THD of input current

Articles in Press

Document Type : Original Research

Author

Puya Behnia

Department of power engineering, Faculty of electrical and robotics engineering, Shahrood university of technology, Shahrood, Iran

10.30511/pcdp.2025.2073352.1049

Abstract

In this article it is tried to design a PFC (Power Factor Correction) circuit on the base of Buck – Boost converter in order to increase the power quality transmission of the input voltage source. The first step of this circuit’s processing is to rectify the AC input voltage to a DC voltage but due to the use of diodes (in the H – bridge structure; which conduct the current just in a short time of each period the input current’s THD (Total harmonic distortion) will increase. The lower THD of input current, the higher input power factor of the PFC converter as a result it is tried to increase the input power factor of the PFC converter. The output of the power factor correction process is a huge DC (Direct current) voltage which is regulated in the range of 400 volts with the help of control circuit. In this article the Boost mode of the Buck – Boost converter is considered.

Keywords

Power quality

Power factor

Efficiency

Subjects