An improved PO and immune MPPT method for PV generating system under partially shaded conditions

• Autorzy: Liu L. Q. , Liu C. X. , Yang G. T. , Zheng X. Y. , Wang J. S.

Warianty tytułu

PL

Ulepszona metoda PW oraz odporny algorytm MPPT dla systemu paneli fotowoltaicznych w warunkach częściowego zacienienia

• Języki publikacji: EN

Abstrakty

EN

The maximum power point tracking (MPPT) for photovoltaic (PV) generating system study on the tracking method at partial shading is very important to improve the output efficiency of costly PV, the objective is to improve the respond speed and extract maximum power under different weather and partial shading conditions. The output characteristics of PV system get more complex than same irradiation because of the continually changing of atmospheric conditions and frequently partially shaded in actual woke state. The nonlinear and multiple local peaks characteristics of PV system at partial shading are considered by using perturbation and observation (PO) method to gain the actual global peak of PV system, and the conventional PO method is improved by using the perturb Pulse-Width Modulation (PWM) method at ideal irradiation and partial shading, and then the artificial immune theory is used to accelerate the response speed and robustness. The proposed improved PO and immune method has an excellent dynamic performance and small oscillation as compared to the traditional PO method under partially shaded conditions.

PL

W artykule opisano algorytm śledzenia maksymalnego punktu pracy (MPPT) dla system paneli fotowoltaicznych, w warunkach częściowego zacienienia. W celu wyznaczenia punktu globalnego MPPT, zastosowano metodę perturbacji i obserwacji (PO). Metoda PO została ulepszona poprzez zastosowanie zmodyfikowanej modulacji PWM przy braku nasłonecznienia i częściowym zacienieniu. W celu zwiększenia dynamiki i odporności algorytmu wykorzystano teorię sztucznej odporności. Proponowana metoda gwarantuje bardzo dobrą efektywność.

Słowa kluczowe

EN

photovoltaic; maximum power point tracking (PPT); tracking method

PL

fotowoltaika; MPPT; częściowe zacienienie

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2013
• Tom: R. 89, nr 1a
• Strony: 235--238
• Opis fizyczny: Bibliogr. 10 poz., schem., wykr.

Twórcy

autor

Liu L. Q.

• Taiyuan University of Science & Technology

autor

Liu C. X.

• Taiyuan University of Science & Technology

autor

Yang G. T.

• Taiyuan University of Science & Technology

autor

Zheng X. Y.

• Taiyuan University of Science & Technology

autor

Wang J. S.

• Taiyuan University of Science & Technology

Bibliografia

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• [3] Mutoh N., Ohno M., Inoue T., A Control Method to Charge Series-Connected Ultraelectric Double-Layer Capacitors Suitable for Photovoltaic Generate Systems Combining MPPT Control Method, IEEE Trans. Industrial Electronics, 54(2007), No.1, 374-383.
• [4] Wolfs P., Li Q., A Current-Sensor-Free Incremental Conductance Single Cell MPPT for High Performance Vehicle Solar Arrays, 37th IEEE Power Electronics Specialists Conference 2006, PESC'06, 18-22 June 2006, Jeju, Korea.
• [5] Wu T., Chang C., Chen Y., Fuzzy-logic-controlled single-stage converter for PV-powered lighting system applications. IEEE Trans. Industrial Electronics, 47(2000), No. 2, 287–296
• [6] Hiren P., Vivek A., MATLAB-Based modeling to study the effects of partial shading on PV array characteristics. IEEE Trans. Energy Conversion, 23(2008), No.1, 302-310
• [7] Hiren P., Vivek A., Maximum power point tracking scheme for PV systems operating under partially shaded conditions. IEEE Trans. Industrial Electronics, 55(2008), No.4, 1689-1698
• [8] Syafaruddin, E. Karatepe, T. Hiyama, Artificial neural networkpolar coordinated fuzzy controller based maximum power point tracking control under partially shaded conditions, IET Renewable Power Generation, 3(2009), No.2, 239-253
• [9] Li H., Chen L., Fuzzy immune PSD control of non-linear systems. Control Engineering of China, 15(2008), No.2, 68-170
• [10] Li G., Wang M., Fuzzy immune-PID controller and its application in caustic process. Computer Engineering, 35(2009), No. 1, 218-220