{'fraction_non_alphanumeric': 0.03183791606367583, 'fraction_numerical': 0.009406657018813314, 'mean_word_length': 5.22972972972973, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Parity-column index based array reconfiguration scheme for power loss reduction in photovoltaic systems under partial shade conditions

Photovoltaic (PV) systems will lose energy due to mismatching loss when working in partial shade conditions (PSC), researches show that static reconfiguration of PV arrays can effectively reduce the influence of power mismatch caused by shadow occlusion on PV system. In this paper, a systematic static reconfiguration method named parity-column index (PCI) is proposed. This method is based on the improvement of the non-symmetrical puzzle (NS) technique, and reconstructs the row position of PV cells by simple parity transformation and column index rules without changing the original wiring mode, which is applicable to PV arrays of any size. To test the validity of output characteristics of the proposed method, three shadow movement patterns under a 9×9 array are constructed based on the actual situation. Simulation verification and comparison is performed for the total cross-tied (TCT), Odd-Even Configuration (OEC), and non-symmetrical puzzle (NS) arrangements. Compared with the conventional TCT arrangement, the proposed PCI arrangement successfully achieves a maximum power increase as low as 11.7% and as high as 20.1%, and at the same time achieves a maximum power increase of 10.1% and 3.8% compared with OE and NS arrangements.