Power Enhancement in Partial Shaded Photovoltaic System Using Spiral Pattern Array Configuration Scheme

Abstract

Partial shading causes mismatch losses in the solar PV system. In the PV array, the power output from the healthy PV modules is gone in vain due to the mismatch losses. The PV array construction with the high resistivity to the mismatch loss generation is the progressing research work in the research field. In this work, a new kind of array configuration scheme is framed for the PV system for overcoming the effect of partial shading. The proposed array configuration has a high resistivity to the mismatch loss generation over the other conventional array configuration methods. The array configuration is framed in a pattern that is similar to the spiral step pattern. Each row of the PV array is constructed with the PV modules from each row of the conventional Total Cross Tied configuration with the optimized distance. This row construction allows the system to uniformly disperses the partial shading over the PV array. The simulation analysis is carried out by applying various shading patterns in MATLAB/Simulink®. The performance of the proposed array configuration is also analyzed in the experimental setup and the results were presented.

Solar Array Optimization Using Cryptographic Fibonacci Transformation for Global Power Enhancement and Ease of MPPT Controllers

“…TCT 10 0 0.067889 OSU [24] 10 0 0.067889 SD [14] 15 0 0.043114 OEA [25] 15 0 0.043114 FP [15] 15 0 0.043114 OEP [26] 15 0 0.043114 LS [17] 10 0 0.067889 NA [27] 15 0 0.043114 OSA [18] 15 0 0.043114 DT [28] 21 0 0.027707 NOS [18] 15 0 0.043114 MS [29] 15 0 0.043114 SM [19] 15 0 0.043114 CS [29] 15 0 0.043114 CI [20] 15 0 0.043114 AS [31] 15 0 0.043114 SC [21] 10 0 0.067889 CM [32] 10 0 0.067889 IS [22] 15 0 0.043114 SPA [33] 10 0 0.067889 LOS [23] 10 0 0.067889 HM [35] 10 0 0.067889…”

“…Most of the existing static reconfiguration techniques [14][15][16][17][18][19][20][21][22][23][24][27][28][29][30][31][32][33][34]36] are not compatible with asymmetric arrays as they are based on puzzle-based, magic square-based, logic-based rules that are applicable only for symmetric grids. In practice, the PV arrays can be symmetrical or asymmetrical.…”

“…The novelty and contributions of the proposed work are as follows: 1) A highly efficient, simple, scalable, sensorless, switchless integer sequence‐based PV array reconfiguration approach is proposed to effectively disperse the shade, and its effectiveness is evaluated using image quality indices. 2) As opposed to many static techniques [ 14–36 ] that indiscriminately disperse the shade, the proposed technique intelligently disperses the shade. This is achieved by the image scrambling property of the considered integer sequence strategy, where the correlation between the adjacent shaded PV modules in a row, column, and diagonal is highly reduced, thereby improving the total irradiation of a particular row of PV array.…”

Photovoltaic array reconfiguration under partial shading conditions for maximum power extraction: A state-of-the-art review and new solution method

“…In addition, in order to express the effectiveness of the proposed method, other conventional methods have been used and the results have been evaluated using various evaluation indicators. In [53], a static based array configuration method under the spiral step pattern has been developed to configure 4 × 4 and 9 × 9 PV arrays under PSCs. The proposed method in this study has a high resistivity to generating mismatch losses compared to other conventional solutions.…”

Performance Evaluation of Spider Web Tie (S-B-T) PV Panel Configuration to Reduce PV Mismatch Losses

“…The non-linear relationship between current and voltage of PV module is the main factor that influences its performance. Other factors such as temperature and solar insolation can also affect its efficiency and performance [9]. Partial shading conditions (PSCs) are the main factors that affect the generation of power from a PV module.…”