Research of Photovoltaic Charging System with Maximum Power Point Tracking Based on DSP

Abstract:

According to the output characteristics of photovoltaic (PV) array and battery charging characteristics, this article used DSP to design a PV charging system with maximum power point tracking (MPPT) ,and the three-state charging method was implemented on it. The incremental conductance (INC) algorithm was applied in fast-charge stage to track maximum power point. PI regulator algorithm was exploited to realize constant voltage charge in the stage of over-charge and float-charge, and the charge voltage was compensated by the sampling temperature. Experimental and simulation results indicated that this method can be used to improve the energy efficiency of PV cell, and extend the lifetime of battery.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 1716-1719
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.1716
• Online since: May 2014
• Authors: Yi Zhi Zhao*, Qian Liu, Qi Zhang
• Keywords: Maximum Power Point Tracking (MPPT), Photovoltaic Charging

References

[1] N. Mutoh, M. Ohno, and T. Inoue. A Control Method to Charge Series-Connected Ultra electric Double-Layer Capacitors Suitable for Photovoltaic Generate Systems Combining MPPT Control Method. IEEE Transactions on Industrial Electronics, 2007, vol. 54, no. 1, pp.374-383.

DOI: 10.1109/tie.2006.885149

[2] Sera, D., Teodorescu, R., Hatchel, J., Knoll, M. Optimized maximum power point tracker for fast-changing environmental conditions. 2008 IEEE International Symposium on Industrial Electronics, July 2008, p.2401~2407.

DOI: 10.1109/isie.2008.4677275

[3] Li Lianbing, Ma Qiang, Zhao Qingyun. Research of MPPT algorithm with stability and rapidity. 2008 Chinese Control and Decision Conference, July 2008, p.5210~5214.

DOI: 10.1109/ccdc.2008.4598324

[4] Fang Luo, Pengwei Xu, Yong Kang, Shangxu Duan. A variable step maximum power point tracking method using differential equation solution. 2nd IEEE Conference on Industrial Electronics and Applications, May 2007, p.2259~2263.

DOI: 10.1109/iciea.2007.4318813

[5] Hohm D.P. Ropp M.E. Comparative study of maximum power point tracking algorithms using an experimental, programmable, maximum power point tracking test bed. Photovoltaic Specialists Conference, 2000, Conference Record of the Twenty-Eight IEEE, 2000, pp.1699-1702.

DOI: 10.1109/pvsc.2000.916230

[6] Jun Pan, Chenghua Wang, Feng Hong. Research of Photovoltaic Charging System with Maximum Power Point Tracking. the Ninth International Conference on Electronic Measurement & Instruments, 2009, p.478 ~481.

DOI: 10.1109/icemi.2009.5274013

[7] Masoum, M.A. S, Badejani, S.M.M., Fuchs, E.F. Microprocessor controlled new class of optimal battery chargers for photovoltaic applications. IEEE Transaction on Energy Conversion, June 2004, p.549~550.

DOI: 10.1109/pes.2004.1373118

[8] Colak, I., Tuncay, N. High current, low voltage modular power converter for lead acid battery charging. 2008 IEEE International Conference on Sustainable Energy Technologies, Nov 2008 p.1042~1046.

DOI: 10.1109/icset.2008.4747160