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
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,


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.


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


[1] G. Spagnuolo, W. Xiao, and C. Cecati, “Monitoring, diagnosis, prognosis, and techniques for increasing the lifetime/reliability of photovoltaic systems,” Industrial Electronics, IEEE Transactions on, vol. 62, pp. 7226–7227, Nov 2015.
[2] R. Wu, F. Blaabjerg, H. Wang, M. Liserre, and F.Iannuzzo, “Catastrophic failure and fault-tolerant design of IGBT power electronic converters – an overview,” in Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE, pp. 507–513, Nov 2013.
[3] S. Vighetti, J. Ferrieux, and Y. Lembeye, “Optimization and design of a cascaded dc/dc converter devoted to gridconnected photovoltaic systems,” IEEE Trans. Power Electron., vol. 27, no. 4, pp. 2018–2027, Apr. 2012.
[4] Y. Zhou and H. Li, “Analysis and suppression of leakage current in cascaded-multilevel-inverter-based PV systems,” IEEE Trans. Power Electron., vol. 29, no. 10, pp. 5265– 5277, Oct. 2014.
[5] T.-F. Wu and T.-H. Yu, “Unified approach to developing single-stage power converters,” IEEE Trans. Aerosp. Electron. Syst., vol. 34, no. 1, pp. 211–223, Jan. 1998.
[6] M. Narimani and G. Moschopoulos, “A new interleaved three-phase single-stage PFC ac-dc converter,” IEEE Trans. Ind. Electron., vol. 61, no. 2, pp. 648–654, Feb. 2014.
[7] S. Birca-Galateanu, “Buck-flyback dc-dc converter,” IEEE Trans. Aerosp. Electron. Syst., vol. 24, no. 6, pp. 800–807, Nov. 1988.
[8] J. Alonso, M. Dalla Costa, and C. Ordiz, “Integrated buckflyback converter as a high-power-factor off-line power supply,” IEEE Trans. Ind. Electron., vol. 55, no. 3, pp. 1090–1100, Mar. 2008.
[9] M. da Silva et al., “Analysis and design of a single-stage high-power factor dimmable electronic ballast for electrodeless fluorescent lamp,” IEEE Trans. Ind. Electron., vol. 60, no. 8, pp. 3081–3091, Aug. 2013.
[10] R. Gules, J. De Pellegrin Pacheco, H. Hey, and J. Imhoff, “A maximum power point tracking system with parallel connection for PV stand-alone applications,” IEEE Trans. Ind. Electron., vol. 55, no. 7, pp. 2674–2683, Jul. 2008.