Open Loop Analysis of a High Performance Input Switched Single Phase AC-DC Boost Converter

International Journal of Electrical and Electronics Engineering
© 2019 by SSRG - IJEEE Journal
Volume 6 Issue 7
Year of Publication : 2019
Authors : Khadiza Akter, Firuz Ahamed Nahid , Nafiul Islam
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How to Cite?

Khadiza Akter, Firuz Ahamed Nahid , Nafiul Islam, "Open Loop Analysis of a High Performance Input Switched Single Phase AC-DC Boost Converter," SSRG International Journal of Electrical and Electronics Engineering, vol. 6,  no. 7, pp. 6-11, 2019. Crossref, https://doi.org/10.14445/23488379/IJEEE-V6I7P102

Abstract:

A new topology of input switched single -phase AC-DC Boost converter with low input current THD and high input power factor has been proposed. In order to provide high voltage step-up ratio which is required for high step-up applications like in micro generators, the conventional boost converters with bridge rectifier configuration are not efficient. Instead of using a rectifier configuration followed by a boost DC-DC converter, the input of the rectifier is chopped at high frequency during the positive and negative cycle by a single switch to get a step-up AC-DC conversion. The proposed circuit shows improvement in the Total Harmonic Distortion (THD) of the input current using a small input current filter. Analysis and simulation results of the circuits were conducted using PSIM 9.1 environment. Input power factor and the efficiency of the proposed converter were found satisfactory without any feedback controller compared to the conventional circuit. The proposed input switched boost converter showed improved performance compared to the conventional converter.

Keywords:

Bridgeless Rectifier, Boost Topology, Power Factor Correction (PFC), Total Harmonic Distortion (THD), Efficiency, AC-DC Conversion, Voltage gain

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