A PFC- Bridgeless SEPIC converter with Multiplier Cell for Universal Input Voltage Applications

Ganesh Yamavarapu*, D. Manikanta Swamy**, M. Venkatesan***
* PG Scholar, Department of Electrical Engineering, Politecnico di milano, Milan, Italy.
** Research Scholar, Department of Electrical Engineering, Vignan's Foundation for Science, Technology & Research, Guntur, Andhra Pradesh,India.
*** Department of Electrical Engineering, Vignan's Lara Institute of Technology & Science, Guntur, Andhra Pradesh,India.
Periodicity:July - September'2018

Abstract

In this paper a new Power factor correction bridgeless Single Ended primary Inductor Converter (SEPIC) is designed for universal input voltage applications is presented in this paper. Now a days entire our electrical grid connected with nonlinear loads, so there is a need to improve power factor implied on the grid as well as power quality. The main drawbacks of the conventional SEPIC PFC is lower efficiency due to the conduction losses of the diodes. To improve efficiency of the system, a modified bridgeless SEPIC converter is proposed in this paper. The proposed modified PFC coverter offer higher operating efficiency with high gain. The high gain is obtained by multiplier circuits. The main advantages of the proposed system is diode bridge circuits completely eliminated for conventional circuits and also control circuit is very simple. The proposed converter is analysed interms of THD and also analysed gain of the converter with respect to the different duty cycle varying from 10% to 90%. The proposed converter is analysed with mathematical expressions. The results of the modified PFC have been verified using MATLAB Simulink.

Keywords

Bridgeless SEPIC Converter, High Gain, Multiplier Cell, Nonlinear Loads, PFC.

How to Cite this Article?

Yamavarapu, G., Swamy, D. M., and Venkatesan, M. (2018). A PFC- Bridgeless SEPIC converter with Multiplier Cell for Universal Input Voltage Applications. i-manager’s Journal on Electrical Engineering, 12(1), 10-17.

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