An efficient reconfiguration method based on standard deviation for series and parallel connected PV arrays

This paper proposes a new approach for reconfiguration of PV array. The proposed method is designed for series and parallel connected array which is widely used in practical. The developed control algorithm for this method uses panel irradiance values and decisions which adaptive panels connect to string of array. The algorithm considers irradiance level deviation from average value of each string of array with applying standard variation function. To prove the validity of the method, the simulations are performed in Matlab-Simulink. The simulation results show that the proposed method can enhance efficiency of array under partial shading condition.

[1]  A. Mellit,et al.  Input output feedback linearization control and variable step size MPPT algorithm of a grid-connected photovoltaic inverter , 2011 .

[2]  E. Koutroulis,et al.  A New Technique for Tracking the Global Maximum Power Point of PV Arrays Operating Under Partial-Shading Conditions , 2012, IEEE Journal of Photovoltaics.

[3]  Stephen J. Finney,et al.  A Maximum Power Point Tracking Technique for Partially Shaded Photovoltaic Systems in Microgrids , 2013, IEEE Transactions on Industrial Electronics.

[4]  V. Agarwal,et al.  MATLAB-Based Modeling to Study the Effects of Partial Shading on PV Array Characteristics , 2008, IEEE Transactions on Energy Conversion.

[5]  F. Guinjoan,et al.  Grid-connected PV systems energy extraction improvement by means of an Electric Array Reconfiguration (EAR) strategy: Operating principle and experimental results , 2008, 2008 IEEE Power Electronics Specialists Conference.

[6]  Benjamin Chong,et al.  Controller design for integrated PV-converter modules under partial shading conditions , 2013 .

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

[8]  Paula dos Santos,et al.  Reconfiguration methodology of shaded photovoltaic panels to maximize the produced energy , 2011, XI Brazilian Power Electronics Conference.

[9]  M. M. A. Salama,et al.  Optimal Photovoltaic Array Reconfiguration to Reduce Partial Shading Losses , 2013, IEEE Transactions on Sustainable Energy.

[10]  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.

[11]  D. Devaraj,et al.  Artificial neural network based modified incremental conductance algorithm for maximum power point tracking in photovoltaic system under partial shading conditions , 2013 .

[12]  Roger A. Dougal,et al.  Parallel-Connected Solar PV System to Address Partial and Rapidly Fluctuating Shadow Conditions , 2009, IEEE Transactions on Industrial Electronics.

[13]  Yanli Liu,et al.  Research on an adaptive solar photovoltaic array using shading degree model-based reconfiguration algorithm , 2010, 2010 Chinese Control and Decision Conference.

[14]  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.

[15]  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.

[16]  Chung-Yuen Won,et al.  A Real Maximum Power Point Tracking Method for Mismatching Compensation in PV Array Under Partially Shaded Conditions , 2011, IEEE Transactions on Power Electronics.

[17]  Rashad M. Kamel,et al.  A novel multi-model neuro-fuzzy-based MPPT for three-phase grid-connected photovoltaic system , 2010 .

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

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

[20]  Koray Sener Parlak.  A New reconfiguration method for PV array system , 2013, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society.