Comparative Study of Enhanced Power Generation Photovoltaic Array under Partial Shading Conditions using Magic Square Row Shifting Technique

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Thanakorn Namhormchan


This paper presents a study to enhance power generation from a PV array under partial shading condition by comparing with the previous reconfiguration techniques. In this approach, the physical location of the modules was connected in a Total Cross Tied--TCT 5´5 array and reconfiguration in the Original Magic Square with Siamese method--MS, Modify Magic Square with row shifting and Standard TCT for dispersing the shading effect over the entire array. Further, this PV reconfiguration in the array; shade dispersion, reduced the effect of shading, and enhancing the generated PV power. The output power of the PV array was investigated with four different shading patterns and the results showed that the proposed MS configuration techniques enhanced power generation compared to TCT for all types of partial shading conditions, MS enhancing power generation approximately 50 percent in the case of Short Wide and 0.9-2.8 percent in other cases and the proposed Modify MS increased enhanced power in the same trend as the original MS.


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