Shading Ratio Impact on Photovoltaic Modules and Correlation with Shading Patterns

Galeano, A.G.; Bressan, Michaël; Jiménez, Fernando R.; Alonso, Corinne

doi:10.3390/en11040852

Cited by 30 publications

(13 citation statements)

References 44 publications

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“…Pada Gambar 3 dapat terlihat bahwa area yang teriluminasi dengan sempurna menghasilkan arus photo teriluminasi ( ℎ ) dan pada area yang mengalami gangguan shading menghasilkan arus photo shading, sehingga dari satu sel tersebut yang merupakan jalur foton dari satu grup sel menghasilkan nilai arus photo total yang disebut sebagai arus photo total teriluminasi ( ℎ ). Penelitian dari Galeano, Bressan, dan Vargas menghasilkan suatu variabel shading berupa nilai konstanta yang dimasukkan ke dalam persamaan modul PV sehingga tercipta persamaan yang memperhitungkan besaran gangguan shading [14]. Gambar 4 adalah contoh bagaimana keadaan dari gangguan shading menutupi sinar matahari pada sel PV dalam modul PV.…”

Section: Persamaan Modul Photovoltaicunclassified

Pemodelan Persamaan Modul Photovoltaic Yang Memiliki Dioda Bypass Pada Saat Gangguan Shading

Jusran

Irianto

Candra

2020

TESLA

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Photovoltaic (PV) modules are devices that convert sunlight to electricity. The usages of PV modules become more popular from time to time. In a certain condition, PV modules can have multiple problems. One of many problems found in usages of PV modules is shading. Shading is a condition where sunlight is blocked by objects that makes shadow around the surface of PV modules which lead to a decreasing of productivity and efficiency in power generation. Shading issue can occurs to a single cell or group of cells in PV module which not only can cause a drastic decreasing in power generation but also can cause structure failure and fire. Equation modeling is needed to represent power, current, and voltage characteristic of PV module when shading occurs. Method that used in this research is a synthesis of several method which is detailed equation modeling of PV module and varying shading amount of a PV module using Simulink MATLAB program. The results shows that current and voltage characteristic and power and voltage characteristic are representing PV module behaviour in shading condition which can be analysed and lead to further research and development of PV devices and systems.

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Section: Persamaan Modul Photovoltaicunclassified

Pemodelan Persamaan Modul Photovoltaic Yang Memiliki Dioda Bypass Pada Saat Gangguan Shading

Jusran

Irianto

Candra

2020

TESLA

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“…All these factors are causes difference in modules I-V parameters, and this dissimilitude is the critical source of MML in PV array. Shading is a widespread issue for MML in PV array [42], and different novel algorithms and techniques have already been developed to reduce MML due to shading effects [43,44]. The manufacturing process of PV modules are developing competitively day by day to minimize the manufacturing variance of I-V parameters in same power rated modules, but still, now the available crystalline PV modules in the market contain manufacturing tolerances of ±3% to ±5% in their power rating.…”

Section: Mismatch Power Loss In Pv Arraymentioning

confidence: 99%

Performance Comparison of Mismatch Power Loss Minimization Techniques in Series-Parallel PV Array Configurations

2019

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The mismatch in current-voltage (I-V) characteristics of photovoltaic (PV) modules causes significant power loss in a large PV array, which is known as mismatch power loss (MML). The PV array output power generation can be improved by minimizing MML using different techniques. This paper investigates the performance of different module arrangement techniques to minimize MML both for long series string (LSS) and long parallel branch (LPB) in series-parallel (SP) array configurations at uniform irradiance condition. To investigate the significance of MML LSS-SP configuration with dimensions: 1 × 40, 2 × 20, 4 × 10, 5 × 8 and LPB-SP configuration with dimensions: 40 × 1, 20 × 2, 10 × 4, 8 × 5 were used. A comparative analysis is made to find the effectiveness of MML reduction techniques on PV arrays with three different power ratings. Simulation results show that the PV modules arrangement obtained by the genetic algorithm (GA) and current based arrangement (Im) performed better than the arrangements obtained by all other techniques in terms of PV array output power and MML minimization. The performance of the proposed technique was analyzed for both LSS-SP and LPB-SP array configurations in 400 W, 3400 W, and 9880 W arrays. To substantiate the simulation results experiment was performed using a 400 W PV array in outdoor weather condition and obtained similar results. It was also observed that the percentage of recoverable energy (%RE) obtained by arranging the modules using the GA method was higher than Im based method for both LSS-SP and LPB-SP array configurations. A maximum %RE of 4.159 % was recorded for a 5 × 8 LSS-SP array configuration by applying the GA based MML reduction method.

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“…Gutiérrez Galeano et al [10] presented a simplified approach using a shading ratio to model and analyze the performance of partially shaded PV modules. A model was derived using well-known current−voltage characteristics, in which the shape and opacity of a shaded area are integrated.…”

Section: Causes For Energy Lossmentioning

confidence: 99%

Photovoltaic System Design and Performance

Sark

2019

Energies

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This editorial summarizes the collection of papers in the Special Issue entitled Photovoltaic System Design and Performance, which was published in MDPI’s Energies journal. Papers on this topic were submitted in 2017 and 2018, and a total of 21 papers were published. Main topics included data analysis for optimal performance and fault analysis, causes for energy loss, and design and integration issues. The papers in this Special Issue demonstrate the importance of designing and properly monitoring photovoltaic systems in the field in order to ensure maintaining good performance.

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Shading Ratio Impact on Photovoltaic Modules and Correlation with Shading Patterns

Cited by 30 publications

References 44 publications

Pemodelan Persamaan Modul Photovoltaic Yang Memiliki Dioda Bypass Pada Saat Gangguan Shading

Pemodelan Persamaan Modul Photovoltaic Yang Memiliki Dioda Bypass Pada Saat Gangguan Shading

Performance Comparison of Mismatch Power Loss Minimization Techniques in Series-Parallel PV Array Configurations

Photovoltaic System Design and Performance

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