A Novel Array Configuration Technique for Improving the Power Output of the Partial Shaded Photovoltaic System

Cherukuri, Santhan Kumar; Kumar, B. Praveen; Raj, K. Kalyan; Muthubalaji, S.; Devadasu, G.; Babu, Thanikanti Sudhakar; Alhelou, Hassan Haes

doi:10.1109/access.2022.3148065

Cited by 22 publications

(3 citation statements)

References 24 publications

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“…In addition, the noel P-C outperforms alternative methods in terms of GMPP efficiency. In [24], a PV module arrangement inspired by the 'Knight pattern' chess game symbol is used and compared to the standard power grid (SP, TCT, and Su-Do-Ku). There are six distinct shading schemes used in this study, each with a different irradiance level ranging from 200 to 950 watts per square metre.…”

Section: Literature Reviewmentioning

confidence: 99%

Game theory-based photovoltaic array system reconfigure method: experimental validation

2023

IJATEE

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The performance of photovoltaic (PV) systems is significantly impacted by partial shading conditions (PSCs) when generating electricity. To mitigate these effects, researchers have explored modifying electrical connections and rearranging PV array modules. The primary goal of this research is to reduce shading's impact on PV systems and increase the global maximum power point (GMPP). In this study, the magic squares (MS) game puzzle (4×4 size) is used to demonstrate the PV system's performance, achieving 49.05W and 51.35W under realistic non-uniform irradiation levels. The total-cross-tied (TCT) and series-parallel (SP) methods are analyzed and compared, like the approach used in MS puzzles. Experimental validation shows good agreement with the MATLAB/Simulink analysis results in terms of low power loss (PL), GMPP locations, power enhancement (PE), and fill factor (FF). The results indicate that the suggested PV system is capable of producing satisfactory results.

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Section: Literature Reviewmentioning

confidence: 99%

Game theory-based photovoltaic array system reconfigure method: experimental validation

2023

IJATEE

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“…Therefore, many maximum power point tracking (MPPT) techniques have been recommended to track the GMPPT of the PV module to impose the system to operate at a specific unique GMPP, where the system can achieve its maximum power. In addition, power electronic circuits are applied with control circuits to attain GMPP operation 14 , 15 .…”

Section: Introductionmentioning

confidence: 99%

Investigation of single and multiple MPPT structures of solar PV-system under partial shading conditions considering direct duty-cycle controller

Youssef,

Hefny,

Ali

2023

Sci Rep

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Partial shading of solar panels diminishes their operating efficiency and energy synthesized as it disrupts the uniform absorption of sunlight. To tackle the issue of partial shading in photovoltaic (PV) systems, this article puts forward a comprehensive control strategy that takes into account a range of contributing factors. The proposed control approach is based on using multi-string PV system configuration in place of a central-type PV inverter for all PV modules with a single DC-DC converter. This adaptation enhances overall efficiency across varying radiation levels. Also, the proposed technique minimizes the overall system cost by reducing the required sensors number by utilizing a radiation estimation strategy. The converter switching strategy is synthesized considering direct duty-cycle control method to establish the maximum power point (MPP) location on the P–V curve. The direct duty-cycle tracking approach simplifies the control system and improves the system’s response during sudden partial shading restrictions. To validate the effectiveness of the suggested MPPT method, two system configurations were constructed using MATLAB/SIMULINK software and assessed under various partial shading scenarios. Additionally, a multi-string system was subjected to real irradiance conditions. The sensor-less MPPT algorithm proposed achieved an impressive system efficiency of 99.81% with a peak-to-peak ripple voltage of 1.3V. This solution offers clear advantages over alternative approaches by reducing tracking time and enhancing system efficiency. The system findings undoubtedly support the theoretical scrutiny of the intended technique.

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“…A competence square (CS) technique is used in [3] for the physical rearrangement of PV modules in total-cross-tied (TCT) configuration under PS conditions. The knight pattern array reconfiguration method is suggested by [4] for maximum power extraction by equalizing shading distribution on various P V modules under partial shading conditions. In [2,5,6] various reconfiguration topologies (i.e., series, series-parallel, total-cross-tied, bridge-linked, honey-comb, physical relocation of the module with fixed electrical connections (PRM-FEC), SuDoKu, and Magic Square (MS)) are considered and compared.…”

Section: Introductionmentioning

confidence: 99%

An Improved Partial Shading Detection Strategy Based on Chimp Optimization Algorithm to Find Global Maximum Power Point of Solar Array System

2022

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A PV system’s operation highly depends on weather conditions. In case of varying irradiances or load changes, there is a power mismatch between various modules of the PV array. This power mismatch causes instability in the output of the PV system and deteriorates the overall system efficiency. To overcome instability and lower efficiency problems, and to extract maximum power from the PV system, various maximum power point tracking (MPPT) techniques are employed. The success of these techniques depends on the identification of the actual operating conditions of the system. This article proposes a hybrid maximum power point tracking (MPPT) technique that is capable of efficiently differentiating between uniform irradiance, non-uniform irradiance, and load variations on the PV system. Based on the identified operating conditions, the proposed method uses modified perturb and observe (Modified P&O) to cope with uniform irradiance variations and chimp optimization algorithms (ChOA) for non-uniform conditions to track the oscillation free maximum power-point. The proposed method is implemented and verified using a 4×3 PV array model in MATLAB Simulink software. Different cases of uniformly changing irradiance and non-uniformly changing irradiance are applied to test the performance of the proposed hybrid technique. The load varying conditions are performed by applying a variable load resistor. The authenticity of the proposed hybrid technique is critically evaluated against the well-known and most widely used optimization techniques of modified perturb and observe (Modified P&O), particle swarm optimization (PSO), flower pollination algorithm (FPA), and grey wolf optimization (GWO). The results demonstrate the superiority of the proposed technique in oscillation-free tracking of global maximum power point (GMPP) in a minimum tracking time of 0.4 s and 0.15 s, and steady-state MPPT efficiency of 96.92% and 99.54% under uniform and non-uniform irradiance conditions, respectively.

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A Novel Array Configuration Technique for Improving the Power Output of the Partial Shaded Photovoltaic System

Cited by 22 publications

References 24 publications

Game theory-based photovoltaic array system reconfigure method: experimental validation

Game theory-based photovoltaic array system reconfigure method: experimental validation

Investigation of single and multiple MPPT structures of solar PV-system under partial shading conditions considering direct duty-cycle controller

An Improved Partial Shading Detection Strategy Based on Chimp Optimization Algorithm to Find Global Maximum Power Point of Solar Array System

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