Robust and accurate photoelectric system model design using the small-signal principle

Yıl 2023, , 79 - 84, 31.01.2023

Aissani Siham , Mohcene Bechouat , Moussa Sedraoui Toufik Amieur

https://doi.org/10.31590/ejosat.1244942

Öz

Due to the importance of modeling and the urgent need for it in various applications, the design of an accurate model that simulates and is compatible with the real system to carry out various studies correctly, this has become a great challenge for researchers. Therefore, this research proposes the design of a mathematical model using the method of the small signal of the photovoltaic system consisting of the photovoltaic panel KC200GT feeding the load Through a DC-DC converter. This modeling method converts the mathematical model of the DC-DC converter from nonlinear behavior to linear behavior given in the state space formula, then the application of the Laplace transform will be used to obtain the transfer function. The latter is used in the studies to design the MPP controller. The simulation results showed that the modeling method based on the small signal method enables us to obtain an efficient and accurate model that is compatible with the real system and shows this compatibility in the voltage and energy between them.

Anahtar Kelimeler

PV paneli, DC-DC Boost dönüştürücü, Maksimum Güç Noktası İzleme MPPT, küçük sinyal, küçük sinyal

Robust and accurate photoelectric system model design using the small-signal principle

Öz

Modellemenin önemi ve çeşitli uygulamalarda acil ihtiyaç duyulması nedeniyle, çeşitli çalışmaları doğru bir şekilde yürütmek için gerçek sistemle uyumlu ve simüle eden doğru bir modelin tasarımı, araştırmacılar için büyük bir zorluk haline gelmiştir. Bu nedenle, bu araştırma, yükü DC-DC dönüştürücü aracılığıyla besleyen fotovoltaik panel KC200GT'den oluşan fotovoltaik sistemin küçük sinyal yöntemini kullanarak matematiksel bir modelin tasarımını önermektedir. Bu modelleme yöntemi, DC-DC dönüştürücünün matematiksel modelini doğrusal olmayan davranıştan durum uzayı formülünde verilen doğrusal davranışa dönüştürür, ardından transfer fonksiyonunu elde etmek için Laplace dönüşümünün uygulanması kullanılır. İkincisi, MPP denetleyicisini tasarlamak için çalışmalarda kullanılır. Simülasyon sonuçları, küçük sinyal yöntemine dayalı modelleme yönteminin, gerçek sistemle uyumlu, verimli ve doğru bir model elde etmemizi sağladığını ve bu uyumluluğu aralarındaki voltaj ve enerjide gösterdiğini göstermiştir.

Anahtar Kelimeler

PV paneli, DC-DC Boost dönüştürücü, Maksimum Güç Noktası İzleme MPPT, küçük sinyal

Kaynakça

• Almeida, M. P., Muñoz, M., de la Parra, I., & Perpiñán, O. (2017). Comparative study of PV power forecast using parametric and nonparametric PV models. Solar Energy, 155, 854-866.
• Wang, Q., Yao, W., Fang, J., Ai, X., Wen, J., Yang, X., ... & Huang, X. (2020). Dynamic modeling and small signal stability analysis of distributed photovoltaic grid-connected system with large scale of panel level DC optimizers. Applied Energy, 259, 114132.
• Dolara, A., Leva, S., & Manzolini, G., (2015), Comparison of dif ferent physical models for PV power output prediction. Solar energy, 119: 83-99.
• Villalva, M. G., De Siqueira, T. G., & Ruppert, E. (2010). Voltage regulation of photovoltaic arrays: small-signal analysis and control design. IET Power Electronics, 3(6), 869-880
• Kollimalla, S. K., & Mishra, M. K. (2014). A novel adaptive P&O MPPT algorithm considering sudden changes in the irradiance. IEEE Transactions on Energy conversion, 29(3), 602-610.
• Harrag, A., & Messalti, S. (2015). Variable step size modified P&O MPPT algorithm using GA-based hybrid offline/online PID controller. Renewable and Sustainable Energy Reviews, 49, 1247-1260.
• Althobaiti, A., M. Armstrong, and M. A. Elgendy. "Space vector modulation current control of a three-phase PV grid-connected inverter." 2016 Saudi Arabia Smart Grid (SASG). IEEE, 2016.
• Lasheen, M., Rahman, A. K. A., Abdel-Salam, M., & Ookawara, S. (2017). Adaptive reference voltage-based MPPT technique for PV applications. IET Renewable Power Generation, 11(5), 715-722.
• Aidoud, M., Feraga, C. E., Bechouat, M., Sedraoui, M., & Kahla, S. (2019). Development of photovoltaic cell models using fundamental modeling approaches. Energy Procedia, 162, 263-274.
• Dehghanzadeh, A., Farahani, G., Vahedi, H., & Al-Haddad, K. (2018). Model predictive control design for DC-DC converters applied to a photovoltaic system. International Journal of Electrical Power & Energy Systems, 103, 537-544.
• Palanisamy, R., Vijayakumar, K., Venkatachalam, V., Narayanan, R. M., Saravanakumar, D., & Saravanan, K. (2019). Simulation of various DC-DC converters for photovoltaic system. International Journal of Electrical and Computer Engineering, 9(2), 917.
• Bechouat, M., Younsi, A., Sedraoui, M., Soufi, Y., Yousfi, L., Tabet, I., & Touafek, K. (2017). Parameters identification of a photovoltaic module in a thermal system using meta-heuristic optimization methods. International Journal of Energy and Environmental Engineering, 8(4), 331-341.
• Ismail, M.S., Moghavvemi, M., & Mahlia, T.M.I., (2013). Characterization of PV panel and global optimization of its model parameters using genetic algorithm. Energy Conversion and Management, 73:10-25.