MATLAB-based DC voltage superposition principle to study the output characteristics of PV array at partial shading

• Autorzy: Liu L. Q. , Sun Z. Y. , Liu C.X.

Warianty tytułu

PL

Wyjściowa charakterystyka matrycy fotowoltaicznej w warunkach częściowego zacienienia - zasada superpozycji napięć DC z wykorzystaniem pakietu Matlab

• Języki publikacji: EN

Abstrakty

EN

Power-voltage characteristics of large scale photovoltaic (PV) arrays at partial shading are characterized by multiple steps and peaks. Most of the existing schemes are unable to accurately predict the output performance of PV array under these conditions. A Matlab-based DC voltage superposition principle is used in studying the output characteristic of a PV array under a non-uniform irradiation due to partial shading. It is observed that, for a given PV array configuration, the actual maximum power point can be gained by using the DC voltage superposition principle. The method has been experimentally validated by using several illustrative examples.

PL

W artykule opisano metodę wyznaczania charakterystyki moc-napięcie dla matryc fotowoltaicznych w warunkach nierównomiernego naświetlenia, na podstawie zasady superpozycji napięć DC w programie Matlab. Korzystając z tej metody można określić punkt mocy maksymalnej, co wykazano badaniami eksperymentalnymi.

Słowa kluczowe

EN

PV array; maximum power point tracking (PPT); partial shading; DC voltage superposition

PL

matryca fotowoltaiczna; śledzenie punktu mocy maksymalnej; częściowe zacienienie; superpozycja napięć DC

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2012
• Tom: R. 88, nr 12a
• Strony: 284--286
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Liu L. Q.

autor

Sun Z. Y.

autor

Liu C.X.

• Taiyuan University of Science & Technology,

Bibliografia

• [1] Nabil A. Ahmed, M. Miyatake. A novel maximum power point tracking for photovoltaic applications under partially shadedinsolation conditions, Electric Power Systems Research, 78(2008), No.5, 777-784.
• [2] K. Kobayashi, I. Takano, Y. Sawada. A study of a two stage maximum power point tracking control of a photovoltaic system under partially shaded insolation conditions, Solar Energy Materials & Solar Cells, 90 (2006), No.18-19, 2975-2988.
• [3] Y. H. Ji, D. Y. Jung, J. G. Kim, J. H. Kim, T. W. Lee, C. Y. Won. A real maximum power point tracking method for mismatching compensation in PV array under partially shaded conditions, IEEE Transactions on power electronics, 26 (2011), No.4, 1001-1009.
• [4] H. Patel, V. Agarwal. Maximum power point tracking scheme for PV systems operating under partially shaded conditions, IEEE Trans. Ind. Electronics, 55 (2008) No.4, 1689-1698.
• [5] Syafaruddin, E. Karatepe, T. Hiyama. Artificial neural network-polar coordinated fuzzy controller based maximum power point tracking control under partially shaded conditions, IET Renewable Power Generation, 3(2009) No.2, 239-253.
• [6] L. J. Gao, Roger A. Dougal, S. Y. Liu, Albena P. Iotova. Parallel-connected solar PV system to address partial and rapidly fluctuating shadow conditions, IEEE Trans. Ind. Electronics, 56 (2009) No.5, 1548-1556.
• [7] H. Patel, V. Agarwal. MATLAB-based modeling to study the effects of partial shading on PV array characteristics, IEEE Trans on Energy Conversion, 23 (2008) No.1, 302-310.
• [8] Y. H. Ji, , J. G. Kim, S. H. Park, J. H. Kim, C. Y. Won. Clanguage Based PV Array Simulation Technique Considering Effects of Partial Shading, ICIT '09 Proceedings of the 2009 IEEE International Conference on Industrial Technology, (2009) February 10-13, Churchill, VIC, Australia.