CURRENT FED FULL-BRIDGE CONVERTER WITH VOLTAGE DOUBLER FOR PHOTOVOLTAIC SYSTEM APPLICATIONS

In this paper Maximum Power Point Tracking (MPPT) algorithm for photovoltaic (PV) system with current fed DC-DC converter is proposed. Various techniques have been proposed for tracking the maximum power from the photovoltaic (PV) cell to obtain the high efficiency and to protect the systems from the variations of the temperature and irradiance. In this paper Incremental Conductance (IC) MPPT algorithm is used to track maximum output power. For getting the high output voltage, Proportional Integral (PI) controller is used to control the DC-DC converter and Zero Voltage Switching (ZVS) is also implemented for all switches to improve the performance of converter. Additionally voltage doubler is connected in the secondary side which results in twice the amount of output voltage with reduced components. The simulation is carried out by using the MATLAB/Simulink software tools to demonstrate the working of the proposed system. The effectiveness of the system is also verified by using the hardware implementation.

Keywords:

Incremental Conductance MPPT, PV array model, current fed DC-DC converter soft switching, voltage doubler, PI controller,

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Jung-Min Kwon and Bong-Hwan Kwon, “High Step- Up Active-Clamp Converter With Input-Current Doubler and Output-Voltage Doubler for Fuel Cell Power Systems”, IEEE Transactions On Power Electronics, Vol. 24, No. 1, January 2009.
H. Patel and V. Agarwal, “Maximum power point tracking scheme for PV systems operating under partially shaded conditions,” IEEE Trans.Ind. Electron., vol. 55, no. 4, pp. 1689–1698, Apr. 2008.
M.Lokanadham,PG Student, K.Vijaya Bhaskar,Asst. Professor,” Incremental Conductance Based Maximum Power Point Tracking (MPPT)for Photovoltaic System” International Journal of Engineering Research and Applications (IJERA) ISSN:2248-9622
Huan-Liang Tsai, Ci-Siang Tu, and Yi-Jie Su, “Development of Generalized Photovoltaic Model Using MATLAB/SIMULINK”, Proceedings of the World Congress on Engineering and Computer Science 2008, October 22 - 24, 2008, San Francisco, USA. H. Tao,A.Kotsopoulos, J. L.Duarte, andM.A.MHendrix, “Transformercoupled multiport
ZVS bidirectional dc–dc converter with wide input range,” IEEE Trans. Power Electron., vol. 23, no. 2, pp. 771–781, Mar.2008.
C. González-Morán, P. Arboleya, D. Reigosa, G. Díaz, J. Gómez- Aleixandre “Improved model of photovoltaic sources considering ambient temperature and solar Irradiation” Principado de Asturias government (PCTI 2006-2009) under grant BP06-165, February 16, 2009
Mohammed A. Elgendy, Bashar Zahawi and David J. Atkinson “Assessment of perturb and observe mppt Algorithm implementation techniques For pv pumping applications”, IEEE Transactions on Sustainable Energy, Vol. 3, No. 1, January 2012.
Convers., vol. 22, no. 2, pp. 332–340, Jun. 2007.
LLC converter-A novel dc-dc converter suitable for fuel-cell power system,”IEEE Trans. Ind. Electron., vol. 53, no. 5, pp. 1492–1503, Oct. 2006.
Applications, Third edition, PHI, India, 2009.
R. Balamurugan received his B.E degree in Electrical and Electronics Engineering from Anna University Chennai, in 2005 and he completed his post graduate studies in Power
Electronics and Drives from Anna University Chennai in 2007. He completed his PhD in the area of power University in 20 Chennai,
Bachelor degree in Electrical and Electronics Karpagam College of Engineering, Coimbatore in 2012. She currently pursues her Master degree in Power Electronics K.S.Rangasamy Technology, research interest includes in Renewable energy sources, Soft switching, Inverters and Chopper, DC Machines. from Drives at of Her Tiruchengode.