A New reconfiguration method for PV array system

In this study, a method that reconfigures the connection structure of photovoltaic panels has been suggested. It has been applied under partial shading conditions in order to increase the power gained from the photovoltaic array. In the presented method, all submodules of array are formed with the panels that have similar insolation as far as possible. For that purpose, the possibilities of connection structures that are likely to be in the array are found with the configuration scanning algorithm. The connection structure of array is reconfigured by using short circuit currents, which are taken from particular parts of array in this scanning algorithm. In Matlab-Simulink environment, reconfiguration method on an array which is suggested under partial shading conditions has been tested. It is seen that efficiency of the array has considerably increased with the presented reconfiguration method.

[1]  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.

[2]  B. Zahawi,et al.  Assessment of Perturb and Observe MPPT Algorithm Implementation Techniques for PV Pumping Applications , 2012, IEEE Transactions on Sustainable Energy.

[3]  Yan Chen,et al.  New Approach for MPPT Control of Photovoltaic System With Mutative-Scale Dual-Carrier Chaotic Search , 2011, IEEE Transactions on Power Electronics.

[4]  Jian-Liung Chen,et al.  Maximum photovoltaic power tracking for the PV array using the fractional-order incremental conductance method , 2011 .

[5]  A. Messai,et al.  FPGA-based real time implementation of MPPT-controller for photovoltaic systems , 2011 .

[6]  Dylan Dah-Chuan Lu,et al.  Battery-integrated boost converter utilizing distributed MPPT configuration for photovoltaic systems , 2011 .

[7]  Josep M. Guerrero,et al.  A Novel Improved Variable Step-Size Incremental-Resistance MPPT Method for PV Systems , 2011, IEEE Transactions on Industrial Electronics.

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

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

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

[11]  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.

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

[13]  Koray Sener Parlak,et al.  A new MPPT method for PV array system under partially shaded conditions , 2012, 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG).

[14]  Oscar Lopez-Lapena,et al.  A New MPPT Method for Low-Power Solar Energy Harvesting , 2010, IEEE Transactions on Industrial Electronics.

[15]  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.

[16]  Rachid Chenni,et al.  A detailed modeling method for photovoltaic cells , 2007 .