Performance Enhancement for PV Array under Partial Shading Conditions Using Modified Sudoku 5X5
Keywords:
performance enhancement of PV array, partial shading, Physical Relocation of Module with Fixed Electrical Connections--PRM-FEC, modified SudokuAbstract
This paper presents the performance enhancement of the PV module array, 10W-rated module, and 5X5 array under partial shade conditions in 4 configurations: Short Wide--SW, Short Narrow--SN, Long Wide--LW, and Long Narrow--LN, which use a Physical Relocation of Module with Fixed Electrical Connections--PRM-FEC, are examples of these configurations. Four configurations of modified Sudoku techniques were evaluated by calculating the theoretical power and the performance based on the parameters obtained from the MATLAB/Simulink simulation program. The results showed that the results of the calculation tended in the same direction. The four arrangements provided the same power output in each shading pattern. The proposed technique could increase theoretical power (Global Maximum Power Point--GMPP), Fill Factor--FF, efficiency--ƞ, Enhancement Power--EP, and decrease Mismatch Losses--ML. The output power could be increased by 3 of 4 shading patterns. 4.29%, 18.63%, and 22.09% for the SN LW and SW shading patterns, respectively.
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