Performance enhancement of PV array using successive ring adder algorithm based reconfiguration techniques

Abstract

The photovoltaic array’s output is decreased due to increase of mismatch losses (ML) under partial shading condition. Different row currents begin to flow from the PV modules as a result. Therefore, the panels must be reconfigured to minimize the row current differential in order to get the most power possible from the PV panel. This paper suggests Successive Ring Adder Algorithms (SRAA) to minimize the difference of row current. Under various shading patterns, the proposed scheme’s superiority is evaluated and contrasted with series-parallel (SP) and Total-Cross-Tied (TCT) configurations. The numerical outcomes demonstrate the superiority of the suggested algorithm. Additionally, unlike the recently reported reconfiguration techniques, it may be used with both square (9 × 9) and non-square (9 × 6) PV arrays. In comparison to SP and TCT configuration system, the maximum power generation has improved by 4.04% and 9.25%, respectively. In comparison to TCT (30.96%) and SP (37.52%), the ML was obtained with the lowest value i.e. 25.87%. The efficiency for a 9 × 9 PV array is measured at 13.18%, the highest among TCT (12.67%) and SP (12.07%) configurations. For non-squared (9 × 6) PV array arrangement, similar types of enhanced outcomes are produced.