ENHANCEMENT OF PHOTOVOLTAIC SYSTEM PERFORMANCE BASED ON DIFFERENT ARRAY TOPOLOGIES UNDER PARTIAL SHADING CONDITIONS | ||||
| Journal of Advanced Engineering Trends | ||||
| Article 6, Volume 40, Issue 1, January 2021, Page 49-62 PDF (1.22 MB) | ||||
| DOI: 10.21608/jaet.2021.82192 | ||||
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| Authors | ||||
Abdelrahman M. Mohamed  ; Abou-Hashima M. El-Sayed; Yehia S. Mohamed; Husam A. Ramadan
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| Electrical Engineering Department, Faculty of Engineering, Minia University, Egypt | ||||
| Abstract | ||||
| Partial shading conditions decreases the output power from photovoltaic systems and causes multiple maximum power points on output characteristics because of the mismatching power losses among the PV modules. The shading pattern, the shaded area and the PV array topology are the main factors which affects the mismatching power losses. The main aim of this paper is to study and enhance the performance of a PV system under different array topologies and partial shading conditions and reach to the most convenient topology. PV array topologies including series, parallel, series-parallel and total-cross-tied are studied. Row, column, narrow, wide, middle and random partial shading patterns are considered at the different PV array topologies. The performance is measured according to the maximum output power, mismatching power losses, fill factor, efficiency, open circuit voltage and short circuit current. The parameters and data specification of Suntech Power STD250-20/Wd PV module are used for the simulation based on MATLAB/Simulink software. | ||||
| Keywords | ||||
| Partial shading; Mismatching power losses; PV array topologies; Series; Parallel; Series-parallel; Total-cross-tied and MATLAB simulink software package | ||||
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