Improvement of Power Under Shading Conditions by Re-arrangement of Modules in Hybrid PV Array Configurations

  • V. Bala Raju et al.

Abstract

 The hybrid PV array configurations are formed by combination of two different conventional photovoltaic (PV) array configurations namely Total-Cross-Tied (TCT), Series-Parallel (SP), Honey-Comb (HC) and Bridge-Linked (BL). The performance of hybrid configurations or topologies is better than the conventional type of configurations. Under shading conditions due to nearby buildings, clouds, birds dropping, tree leaves falling on modules etc., the output power of arrays are reduced, mismatch losses are increased and it results decreases the efficiency of PV system. To improve the performance of conventional configurations under shading conditions, Re-arrange or re-positioning of modules within the array based on puzzle pattern method and disperse the shade to new optimal position in the array without changing electrical connections of modules. In this paper Arrow SUDOKU based puzzle pattern are proposed for rearrangement of hybrid PV array configurations. For this study, total five shading cases with different irradiances and one un-shaded case considered for modeling hybrid configurations. For modeling and simulation of 6x6 size hybrid topologies the parameters of Vikram Solar ELDORA 270 are used in MATLAB/Simulink environment.

Published
2019-12-31
How to Cite
et al., V. B. R. (2019). Improvement of Power Under Shading Conditions by Re-arrangement of Modules in Hybrid PV Array Configurations. International Journal of Advanced Science and Technology, 28(20), 644 - 655. Retrieved from http://sersc.org/journals/index.php/IJAST/article/view/2861
Section
Articles