Optimization of photovoltaic energy production through an efficient switching matrix

This work presents a preliminary study on the implementation of a new system for power output maximization of photovoltaic generators under non-homogeneous conditions. The study evaluates the performance of an efficient switching matrix and the relevant automatic reconfiguration control algorithms. The switching matrix is installed between the PV generator and the inverter, allowing a large number of possible module configurations. PV generator, switching matrix and the intelligent controller have been simulated in Simulink. The proposed reconfiguration system improved the energy extracted by the PV generator under non-uniform solar irradiation conditions. Short calculation times of the proposed control algorithms allow its use in real time applications even where a higher number of PV modules is required.

[1]  Jung-Min Kwon,et al.  Photovoltaic Power Conditioning System With Line Connection , 2006, IEEE Transactions on Industrial Electronics.

[2]  Weidong Xiao,et al.  Application of Centered Differentiation and Steepest Descent to Maximum Power Point Tracking , 2007, IEEE Transactions on Industrial Electronics.

[3]  N.J.C.M. van der Borg,et al.  Energy loss due to shading in a BIPV application , 2003, 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of.

[4]  Mahmoud Alahmad,et al.  An adaptive utility interactive photovoltaic system based on a flexible switch matrix to optimize performance in real-time , 2012 .

[5]  F. Guinjoan,et al.  Irradiance equalization method for output power optimization in plant oriented grid-connected PV generators , 2005, 2005 European Conference on Power Electronics and Applications.

[6]  F. Guinjoan,et al.  Energy generation in PV grid-connected systems: power extraction optimization for plant oriented PV generators , 2005, Proceedings of the IEEE International Symposium on Industrial Electronics, 2005. ISIE 2005..

[7]  M. Vitelli,et al.  Optimization of perturb and observe maximum power point tracking method , 2005, IEEE Transactions on Power Electronics.

[8]  Yanli Liu,et al.  An adaptive solar photovoltaic array reconfiguration method based on fuzzy control , 2010, 2010 8th World Congress on Intelligent Control and Automation.

[9]  Z. M. Salameh,et al.  Optimum switching points for array reconfiguration controller , 1990, IEEE Conference on Photovoltaic Specialists.

[10]  Ronnie Belmans,et al.  Partial shadowing of photovoltaic arrays with different system configurations: literature review and field test results , 2003 .

[11]  P. R. Wilson,et al.  Improved Optimization Strategy for Irradiance Equalization in Dynamic Photovoltaic Arrays , 2013, IEEE Transactions on Power Electronics.

[12]  B. Lehman,et al.  A reconfigurable solar photovoltaic array under shadow conditions , 2008, 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition.

[13]  E. Karatepe,et al.  Development of a suitable model for characterizing photovoltaic arrays with shaded solar cells , 2007 .

[14]  Brad Lehman,et al.  An Adaptive Solar Photovoltaic Array Using Model-Based Reconfiguration Algorithm , 2008, IEEE Transactions on Industrial Electronics.

[15]  Y. Auttawaitkul,et al.  A method of appropriate electrical array reconfiguration management for photovoltaic powered car , 1998, IEEE. APCCAS 1998. 1998 IEEE Asia-Pacific Conference on Circuits and Systems. Microelectronics and Integrating Systems. Proceedings (Cat. No.98EX242).

[16]  Guillermo Velasco-Quesada,et al.  Electrical PV Array Reconfiguration Strategy for Energy Extraction Improvement in Grid-Connected PV Systems , 2009, IEEE Transactions on Industrial Electronics.

[17]  Eleonora Riva Sanseverino,et al.  A Dynamic Electrical Scheme for the Optimal Reconfiguration of PV Modules under Non-Homogeneous Solar Irradiation , 2012 .

[18]  Nobuyoshi Mutoh,et al.  A Control Method to Charge Series-Connected Ultraelectric Double-Layer Capacitors Suitable for Photovoltaic Generation Systems Combining MPPT Control Method , 2007, IEEE Transactions on Industrial Electronics.

[19]  E. Riva Sanseverino,et al.  Reconfiguration Techniques of Partial Shaded PV Systems for the Maximization of Electrical Energy Production , 2007, 2007 International Conference on Clean Electrical Power.

[20]  Weidong Xiao,et al.  Real-Time Identification of Optimal Operating Points in Photovoltaic Power Systems , 2006, IEEE Transactions on Industrial Electronics.

[21]  Jiann-Fuh Chen,et al.  A high-efficiency single-phase three-wire photovoltaic energy conversion system , 2003, IEEE Trans. Ind. Electron..

[22]  A. Gregg,et al.  A "real world" examination of PV system design and performance , 2005, Conference Record of the Thirty-first IEEE Photovoltaic Specialists Conference, 2005..