Power factor improvement using Boost converter

Abstract

The devices generally used in industrial, commercial and residential applications need to
undergo power electronics converter for their proper functioning. They are connected to the grid
comprising of non-linear loads and thus have non-linear input characteristics, which results in
produced distortion input line current. Also, current comprising of frequency components at multiples
of line frequency is observed which lead to line harmonics. Due to the increasing demand of these
devices, the line current harmonics pose a major problem by degrading the power factor of the system
thus affecting the performance of the devices. Hence there is a need to reduce the line current
harmonics so as to improve the power factor of the system. This has led to designing of Power Factor
Correction circuits. Rectifier is commonly used for AC-DC power conversion. As mention above that
with the help of rectifier the input line current waveform will distorted. And leads to insert line
harmonics, and result of that poor power quality and poor power factor. Now, to improve power factor
in that type conversion is to introduced an input current wave shaper between rectifier and load