Implementing a Single Switch DC-DC Converter for Photo Voltaic System

International Journal of Electrical and Electronics Engineering

© 2020 by SSRG - IJEEE Journal

Volume 7 Issue 4

Year of Publication : 2020

Authors : T.Ajithkumar, B.Karuppasamy, R.Aswinkumar, U.K.Balakannan, P.Nirmalkumar

10.14445/23488379/IJEEE-V7I4P105

How to Cite?

T.Ajithkumar, B.Karuppasamy, R.Aswinkumar, U.K.Balakannan, P.Nirmalkumar, "Implementing a Single Switch DC-DC Converter for Photo Voltaic System," SSRG International Journal of Electrical and Electronics Engineering, vol. 7,  no. 4, pp. 19-22, 2020. Crossref, https://doi.org/10.14445/23488379/IJEEE-V7I4P105

Abstract:

This paper proposes a single switch nonisolated dc-dc converter for photovoltaic applications. The converter is created by buck converter amalgamation with a buck-boost converter. Such integration also resulted in decreased repeated power processing, thereby increasing the performance of conversions. With just a single transistor the converter is able to perform maximum power point tracking (MPPT), battery charging and load voltage control simultaneously. The MPPT and load voltage regulation is accomplished by regulating duty ratio and switching frequency of the switching pulse. The buck converter will work in discontinuous current conduction mode while the buck – boost converter will operate in continuous current conduction mode. The MPPT algorithm is an incremental conductance algorithm that provides satisfactory results on most conditions. The device must come out of incremental conductance algorithm to protect the battery from over loading and provides the battery with a steady charging voltage. The proposed system is evaluated under MATLAB SIMULINK and satisfactory results are obtained.

Keywords:

DC-DC power Converter, Incremental conductance algorithm, Maximum Power Point (MPP) Tracking (MPPT), Single Stage Single Switch Converter (SSC) and Variable Frequency Control.

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