Power/Current-based MPPT Scheme for PV Modules Operated on Wide Ambient Temperature Range

Dedet Chandra Riawan

Abstract

Photovoltaic (PV) modules have non-linear characteristics described by their voltage-current relationship. At an optimum operating point of voltage and current, a PV module delivers its maximum power. The maximum power of a PV module depends on the irradiance level of sunlight and the module temperature. This paper demonstrates, through simulation and experimental verification, a method to extract maximum output power from a PV module at any irradiance level and wide range of temperature. The proposed maximum power point tracker (MPPT) is based on the power-current characteristics of a PV module. To eliminate the deviation of MPPT operation due to temperature variation, temperature compensation is added. This method yields a faster response and does not require short-circuit current or open-circuit voltage information of the module as required in constant current or voltage MPPT schemes. As the result, higher efficiency is obtained because there is no power interruption while searching the optimum point. Experimental results confirm the validity of the mathematical model and simulation of the proposed technique

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References

C. V. Nayar and H. Dehbonei, "Power Conditioning For Photovoltaic Power Systems," Journal of Electrical & Electronic Engineering, Australia, vol. 21, 2001.

G. Yu, Y. Jung, J. Choi, I. Choy, J. Song, and G. Kim, "A novel two-mode MPPT control algorithm based on comparative study of existing algorithms," presented at Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002.

H. E.-S. A. Ibrahim, F. F. Houssiny, H. M. Z. El-Din, and M. A. El-Shibini, "Microcomputer controlled buck regulator for maximum power point tracker for DC pumping system operates from photovoltaic system," presented at IEEE Fuzzy Systems Conference, 1999.

M. A. S. Masoum, H. Dehbonei, and E. F. Fuchs, "Theoretical and experimental analyses of photovoltaic systems with voltage and current-based maximum power-point tracking," IEEE Transactions on Energy Conversion, vol. 17, pp. 514-522, 2002.

M. Andersen and B. Alvsten, "200 W Low Cost Module Integrated Utility Interface for Modular Photovoltaic Energy Systems," presented at IEEE 21st International Conference on Industrial Electronics, Control, and Instrumentation, 1995.

M. Veerachary, T. Senjyu, and K. Uezato, "Voltage-based maximum power point tracking control of PV system," IEEE Transactions on Aerospace and Electronic Systems, vol. 38, pp. 262-270, 2002.

D. P. Hohm and M. E. Ropp, "Comparative study of maximum power point tracking algorithms," Progress in Photovoltaics: Research and Applications, vol. 11, pp. 47-62, 2003.

C.-T. Pan, J.-Y. Chen, C.-P. Chu, and Y.-S. Huang, "A fast maximum power point tracker for photovoltaic power systems," Industrial Electronics Society. IECON '99 Proceedings. The 25th Annual Conference of the IEEE, 1999.

M. Park and I.-K. Yu, "A study on the optimal voltage for MPPT obtained by surface temperature of solar cell," presented at Industrial Electronics Society, 2004. IECON 2004. 30th Annual Conference of IEEE, 2004.

N. Mutoh, M. Ohno, and T. Inoue, "A method for MPPT control while searching for parameters corresponding to weather conditions for PV generation systems," presented at 30th Annual Conference of IEEE on Industrial Electronics Society, 2004.

G. Walker, "Evaluating MPPT converter topologies using a MATLAB PV model," Journal of Electrical & Electronics Engineering, Australia, IEAust, vol. 21, pp. 49-56, 2001.

W. Xiao, W. Dunford, and A. Capel, "A novel modeling method for photovoltaic cells," presented at IEEE Power Electronics Specialists Conference, 2004.

H. T. Duru, "A maximum power point tracking algorithm based on Impp=f(Pmax) function for matching passive and active loads to a photovoltaic generator," Solar Energy, 2005.

P. L. Solarex, "Mega Modules Over 39 Watts, Information sheet," in Information Sheet, 1996.

J. H. Alberkrack, "A Simpified Power Supply Design Using the TL494 Control Circuit," 2002.

K. R. Volk, "Using Thermistor in Temperature-tracking Power Supplies," in EDN, vol. 3, 2001

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