Evaluation of the impact of partial shading and its transmittance on the performance of crystalline silicon photovoltaic modules

Faye, Issa; Ndiaye, Ababacar; Kobor, Diouma; Thiame, Moustapha; Sene, Cheickh; Ndiaye, Lat Grand

doi:10.5897/ijps2017.4666

Cited by 4 publications

(1 citation statement)

References 20 publications

(21 reference statements)

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“…Compared to the manufacturer's data, the experimental results show a shortfall of 40.38W since the tested module has a Pmax of 230W in Standard Test Condition STC). This coincides with some previous observations and can be explained by the fact that the characterization was done under real conditions of use different from the standard conditions (Issa et al, 2017). Indeed, the measurements were made in an environment where the irradiance was relatively low (749.1 W/m²) while the temperature of 31°C was high.…”

Section: Characterization Mode Testsupporting

confidence: 87%

Design of a low-cost electronic board for monitoring photovoltaic systems

Pape¹,

Ndiaye²

2023

Int. J. Phys. Sci.

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The development of renewable energies is essential to meet the energy demand which is growing year after year. Africa has a strong solar potential which is, however, little exploited. The development of solar photovoltaic (PV) energy will be more favored with the democratization of performance monitoring and characterization tools for PV systems. Monitoring systems are very important because they allow the monitoring of the operation and control of PV installations in order to reduce maintenance costs and avoid undesirable power supply interruptions. There are several monitoring systems, more or less efficient, proposed on the market but they are often too expensive and not adapted to all existing systems. This paper presents a low-cost electronic board for monitoring and characterizing photovoltaic systems. The designed board is based on the ATMega328 microcontroller of the opensource development platform Arduino. It is composed of four blocks that allow the acquisition of electrical and environmental parameters. The board has been tested in monitoring mode with the follow-up of a small PV solar installation. The results of these experiments are consistent with what is found in the literature. Its use in characterization mode has allowed to obtain, in real time, the currentvoltage and power-voltage characteristics. Compared to the results of the IV-500W tracer, the characterization results are consistent with an RMSE of 0.81 in voltage and 0.15 in current on all points measured. The design work is completed with the PCB design on Altium designer which resulted in the Gerber file.

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Section: Characterization Mode Testsupporting

confidence: 87%

Design of a low-cost electronic board for monitoring photovoltaic systems

Pape¹,

Ndiaye²

2023

Int. J. Phys. Sci.

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Comprehensive review of environmental factors influencing the performance of photovoltaic panels: Concern over emissions at various phases throughout the lifecycle

Jathar

Ganesan

Awasarmol

et al. 2023

Environmental Pollution

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The Combined Effect of Current Boosting and Power Loss on Photovoltaic Arrays under Partial Shading Conditions

Mas’ud

2023

Eng. Technol. Appl. Sci. Res.

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This study proposes a novel technique for improving the performance of photovoltaic (PV) arrays under Partial Shading Conditions (PSCs). A 4×4 solar PV array with 16 panels was considered. Bridge-Linked (BL), Total Cross-Tied (TCT), Honey Comp (HC), One Cross-Link (OCL), and Two Cross-Link (TCL) were among the topologies of interest. First, the combined effect of connecting switches and partial shading on the PV array was studied. Then, the power loss/gain caused by reconfiguring the PV array structure from Series-Parallel (SP) to other schemes was investigated. Finally, a method of boosting current into the PV array is proposed to reduce PSCs-related power losses in the connecting switches. The results show that the number of connecting switches in the topology plays an important role in determining power gain or loss at different partial shading levels. TCT and HC outperformed the others in terms of power improvement when PSCs were considered without current boosting. This is true for different levels of solar irradiation exposure. The SP topology is optimal when the solar irradiation level is greater than 900W/m2 or less than 200W/m2. TCT outperformed the others when the current was boosted in the PV array, with a power improvement of 108%, for certain PSCs.

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Evaluation of the impact of partial shading and its transmittance on the performance of crystalline silicon photovoltaic modules

Abstract: However, the open circuit voltage is not affected for both technologies. On the other hand, the reduction of the short-circuit current is much more important for the polycrystalline.

Cited by 4 publications

References 20 publications

Design of a low-cost electronic board for monitoring photovoltaic systems

Design of a low-cost electronic board for monitoring photovoltaic systems

Comprehensive review of environmental factors influencing the performance of photovoltaic panels: Concern over emissions at various phases throughout the lifecycle

The Combined Effect of Current Boosting and Power Loss on Photovoltaic Arrays under Partial Shading Conditions

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