Power Estimation of Photovoltaic System using 4 and 5-parameter Solar Cell Models under Real Outdoor Conditions

Research on automatic tracking solar concentrator photovoltaic systems has gained increasing attention in developing the solar PV technology. A paraboloidal concentrator with secondary optic is developed for a three-junction GaInP/GalnAs/Ge solar cell. The concentration ratio of this system is 200 and the photovoltaic cell is cooled by the heat pipe. A detailed analysis on the temperature coefficient influence factors of triple-junction solar cell under different high concentrations (75X, 100X, 125X, 150X, 175X and 200X) has been conducted based on the dish-style concentration photovoltaic system. The results show that under high concentrated light intensity, the temperature coefficient of Voc of triple-junction solar cell is increasing as the concentration ratio increases, from -10.84 mV/°C @ 75X growth to -4.73mV/°C @ 200X. At low concentration, the temperature coefficient of Voc increases rapidly, and then increases slowly as the concentration ratio increases. The temperature dependence of η increased from -0.346%/°C @ 75X growth to - 0.103%/°C @ 200X and the temperature dependence of Pmm and FF increased from -0.125 W/°C, -0.35%/°C @ 75X growth to -0.048W/°C, -0.076%/°C @ 200X respectively. It indicated that the temperature coefficient of three-junction GaInP/GalnAs/Ge solar cell is better than that of crystalline silicon cell array under concentrating light intensity.

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Analytical model for the prediction of solar cell temperature for a high-concentration photovoltaic system

Case Studies in Thermal Engineering ◽

10.1016/j.csite.2021.100890 ◽

2021 ◽

Vol 25 ◽

pp. 100890

Author(s):

Fahad Gallab Al-Amri ◽

Tasneem Isam Mohammed Abdelmagid

Keyword(s):

Solar Cell ◽

Analytical Model ◽

Photovoltaic System ◽

High Concentration ◽

Cell Temperature

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Theoretical Investigation of the Temperature Limits of an Actively Cooled High Concentration Photovoltaic System

Energies ◽

10.3390/en13081902 ◽

2020 ◽

Vol 13 (8) ◽

pp. 1902 ◽

Cited By ~ 1

Author(s):

Asmaa Ahmed ◽

Katie Shanks ◽

Senthilarasu Sundaram ◽

Tapas Kumar Mallick

Keyword(s):

Solar Cell ◽

Concentration Ratio ◽

Photovoltaic System ◽

Thermal System ◽

Outlet Temperature ◽

Water Mixture ◽

High Concentration ◽

Cell Temperature ◽

Photovoltaic Thermal System ◽

Different Types

Concentrator photovoltaics have several advantages over flat plate systems. However, the increase in solar concentration usually leads to an increase in the solar cell temperature, which decreases the performance of the system. Therefore, in this paper, we investigate the performance and temperature limits of a high concentration photovoltaic Thermal system (HCPVT) based on a 1 cm2 multi-junction solar cell subjected to a concentration ratio from 500× to 2000× by using three different types of cooling fluids (water, ethylene glycol and water mixture (60:40), and syltherm oil 800). The results show that, for this configuration, the maximum volumetric temperature of the solar cell did not exceed the manufacturer’s recommended limit for the tested fluids. At 2000× the lowest solar cell temperature obtained by using water was 93.5 °C, while it reached as high as 109 °C by using syltherm oil 800, which is almost equal to the maximum operating limit provided by the manufacturer (110 °C). Overall, the best performance in terms of temperature distribution, thermal, and electrical efficiency was achieved by using water, while the highest outlet temperature was obtained by using syltherm oil 800.

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Use of Silicone Oil and Coconut Oil as Liquid Spectrum Filters for BSPVT: With Emphasis on Degradation of Liquids by Sunlight

Journal of Solar Energy Engineering ◽

10.1115/1.4038052 ◽

2017 ◽

Vol 140 (1) ◽

Cited By ~ 2

Author(s):

Sandeep S. Joshi ◽

Ashwinkumar S. Dhoble

Keyword(s):

Solar Cell ◽

Silicone Oil ◽

Spectral Response ◽

Coconut Oil ◽

Aging Effect ◽

Photovoltaic System ◽

Electrical Performance ◽

Thermal System ◽

Solar Photovoltaic ◽

Photovoltaic Thermal System

The solar photovoltaic thermal system (PVT) facilitates conversion of incoming solar radiations into heat and electricity simultaneously. The beam split photovoltaic thermal system (BSPVT) is one of the PVT systems. In this system, the incoming solar beam is splitted and used separately for PV and thermal system. The feasibility of water, silicone oil, and coconut oil as spectrum filter for C–Si solar photovoltaic system is reported in the literature recently. However, the changes in the optical behavior of the liquids due to extended exposure to sunlight (aging effect) had not been considered in most of the previous studies. The current study includes the methodology for the selection of liquids for BSPVT systems, estimation of external quantum efficiency (EQE) of a solar cell using liquids, and the aging effect on the liquid spectrum filters. The spectral response of the solar cell is analyzed using BENTHAM, (PVE 300) for 300–1100 nm. In this study, it has been observed that the aging of silicone oil reduces the electrical performance of the solar cell. On the other hand, the aged coconut oil improves the electrical performance of the solar cell as compared to the fresh coconut oil spectrum filter.

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Characteristics of the InGaP/InGaAs/Ge Triple-Junction Solar Cells with Concentration Photovoltaic System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.148-149.773 ◽

2011 ◽

Vol 148-149 ◽

pp. 773-777

Author(s):

Zi Long Wang ◽

Hua Zhang ◽

Hai Tao Zhang ◽

Ye Li

Keyword(s):

Solar Cell ◽

Concentration Ratio ◽

Photovoltaic System ◽

Solar Concentrator ◽

Solar Pv ◽

System Research ◽

Uniform Illumination ◽

Automatic Tracking ◽

Second Stage ◽

System A

The research on automatic tracking solar concentrator photovoltaic system research has become one of issues of solar PV technology. Aiming at the problem of cell performance degradation which caused by the non-uniform illumination in the concentrating photovoltaic system. A dish-style concentrating photovoltaic system with second stage concentrator was designed and built in this article. The author measured the performance of three junction GaInP/GaInAs/Ge solar cell. According to experiment result, the Pmm of solar cell was increased from 1.54 W/cm2 to 1.88 W/cm2. The η of solar cell was increased from 32% to 34.1% separately that compared with the concentrating photovoltaic system which without the second stage concentrator at the same concentration ratio(150X)

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