A novel prime numbers-based PV array reconfiguration solution to produce maximum energy under partial shade conditions

Rezazadeh, Sevda; Moradzadeh, Arash; Hashemzadeh, Seyed Majid; Pourhossein, Kazem; Mohammadi‐Ivatloo, Behnam; Hosseini, Seyed Hossein

doi:10.1016/j.seta.2021.101498

Cited by 37 publications

(11 citation statements)

References 37 publications

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“…In [51], decreasing partial shading losses and increasing power generation have been done by a static PV module reconfiguration technique called the Zig-Zag method. The reconfiguration of PV array modules has been done by presenting a new static-based method called prime numbers in [52]. In this study, 6 PV panels with different shading conditions have been used to implement the proposed technique.…”

Section: • Utilizing Multi-tracker Converters • Utilizing Micro Conve...mentioning

confidence: 99%

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

Rezazadeh

Moradzadeh

Pourhossein

et al. 2022

Energy Conversion and Management

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Section: • Utilizing Multi-tracker Converters • Utilizing Micro Conve...mentioning

confidence: 99%

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

Rezazadeh

Moradzadeh

Pourhossein

et al. 2022

Energy Conversion and Management

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“…While static techniques refer to the physical displacement of modules and follow a fixed connection scheme in which the modules are displaced in the PV array without changing the electrical connections. Static techniques do not require any sensors or switching matrices (Rezk et al 2019;Rezazadeh et al 2021).…”

Section: Related Workmentioning

confidence: 99%

Photovoltaic array reconfiguration under partial shading conditions for maximum power extraction via knight's tour technique

Rezazadeh

Moradzadeh

Pourhossein

et al. 2022

J Ambient Intell Human Comput

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This paper introduces a novel reconfiguration technique, called Knight's tour to extract maximum power from photovoltaic (PV) arrays in partial shading conditions. The Knight's tour reconfigures the PV arrays based on the Knight's movements on the chessboard. The proposed procedure achieves the maximum power values by spreading partial shadows in all rows. Knight's tour can be applied to a variety of PV arrays in different dimensions and sizes. Accordingly, the Knight's tour procedure is applied to four cases in square and rectangular shapes with different dimensions and various shading conditions in each case. To make a direct comparison and present the effectiveness of the suggested procedure, the total-cross-tied connection model and conventional methods such as SuDoKu, optimal SuDoKu, improved SuDoKu, and Skyscraper puzzle are also implemented to the introduced cases. The results of the maximum power point tracking in each case are evaluated by indicators such as global maximum power point (GMPP), fill factor, mismatch loss, and efficiency. Finally, evaluations emphasize the ability and effectiveness of the Knight's tour solution compared to other methods by achieving the GMPP values such as $$74.7\,{I}_{m}{V}_{m}$$ 74.7 I m V m , $$66.6\,{I}_{m}{V}_{m}$$ 66.6 I m V m , $$46.8\,{I}_{m}{V}_{m}$$ 46.8 I m V m , and $$109.8\,{I}_{m}{V}_{m}$$ 109.8 I m V m for cases 1 to 4, respectively. The Knight's tour method can be utilized as an efficient tool for the PV arrays in real-world systems that suffer from partial shading.

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“…These techniques do not require switches or algorithms for operation and are easily applicable to PV arrays with no cost investment [41]. Some of the proposed static reconfigurations for PV arrays are prime numbers‐based reconfiguration [42], Sudoku [43], Magic‐Square [44], one‐time electrical reconfiguration (OER) [45], fixed electrical reconfiguration [46], ancient Chinese magic square (MS) [47], hyper Sudoku [48], and Lo Sho square technique [49]. These techniques have higher practical applications under partial shading and can produce higher power; however, the major drawback lies in the aspect of implementation in non‐square or asymmetric arrays.…”

Section: Introductionmentioning

confidence: 99%

A zero switch and sensorless reconfiguration approach for sustainable operation of roof‐top photovoltaic system during partial shading

Aljafari

Satpathy

Babu

et al. 2023

IET Renewable Power Gen

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Photovoltaic (PV) roof‐top systems in real‐time environments are highly susceptible to the commonly occurring scenario of partial shading that occurs due to unavoidable conditions such as the shadow of buildings and trees. The occurrence of partial shading creates a serious mismatch among the modules of PV arrays that results in severe unexpected power losses in PV arrays. The conventional and hybrid configurations used for loss mitigation in PV arrays are sometimes unreliable and incapable of generating higher power during partial shading. Hence, this paper focuses on the development of a simple and effective technique for the reliable operation of PV arrays and loss reduction during the occurrence of partial shading. The technique is applicable to arbitrary array sizes having no dynamic parts and requires no switches and sensors for implementation to enhance the performance and operation of the system. The performance and reliability of the technique have been investigated under MATLAB simulation and real‐time scenarios by comparing it with various configurations under shading. The investigation reveals a higher power output by the proposed technique with an average conversion efficiency of higher than 90% and power enhancement of 19.07% than other configurations.

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A novel prime numbers-based PV array reconfiguration solution to produce maximum energy under partial shade conditions

Cited by 37 publications

References 37 publications

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

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

Photovoltaic array reconfiguration under partial shading conditions for maximum power extraction via knight's tour technique

A zero switch and sensorless reconfiguration approach for sustainable operation of roof‐top photovoltaic system during partial shading

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