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Article

Changes of Photovoltaic Performance as a Function of Positioning Relative to the Focus Points of a Concentrator PV Module: Case Study

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Department of Economic Methodology, University of Pannonia, Georgikon Faculty, 8360 Keszthely, Hungary
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Department of Foreign Languages, Georgikon Faculty, University of Pannonia, 8360 Keszthely, Hungary
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Department of Mechanical Engineering, University of Pécs, Faculty of Engineering and Information Technology, 7624 Pécs, Hungary
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Department of Water, Atmosphere and Environment, Institute of Meteorology, University of Natural Resources and Life Sciences Vienna, 1180 Vienna, Austria
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(16), 3392; https://doi.org/10.3390/app9163392
Received: 15 July 2019 / Revised: 4 August 2019 / Accepted: 14 August 2019 / Published: 17 August 2019
(This article belongs to the Special Issue Renewable Energy Systems 2019)
This article examines the positioning features of polycrystalline, monocrystalline, and amorphous silicon modules relative to the focus points of concentrator photovoltaic modules under real meteorological conditions using a dual tracking system. The performance of the photovoltaic modules mounted on a dual-axis tracking system was regarded as a function of module orientation where the modules were moved step by step up to a point where their inclination differed by 30° compared to the ideal focus point position of the reference concentrator photovoltaic module. The inclination difference relative to the ideal focus point position was determined by the perfect perpendicularity to the rays of the sun. Technology-specific results show the accuracy of a sun tracking photovoltaic system that is required to keep the loss in power yield below a defined level. The loss in power yield, determined as a function of the measurement results, also showed that the performance insensitivity thresholds of the monocrystalline, polycrystalline, and amorphous silicon modules depended on the direction of the alignment changes. The performance deviations showed clear azimuth dependence. Changing the tilt of the modules towards north and south showed little changes in results, but inclination changes towards northwest, southwest, southeast, and northeast produced results diverging more markedly from each other. These results may make the planning of solar tracking sensor investments easier and help with the estimate calculations of the total investment and operational costs and their return concerning monocrystalline, polycrystalline, and amorphous silicon photovoltaic systems. The results also provide guidance for the tracking error values of the solar tracking sensor. View Full-Text
Keywords: solar energy; solar module; sun-tracking; sun-tracking sensor; azimuth angle; tilt angle solar energy; solar module; sun-tracking; sun-tracking sensor; azimuth angle; tilt angle
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MDPI and ACS Style

Zsiborács, H.; Hegedűsné Baranyai, N.; Vincze, A.; Háber, I.; Weihs, P.; Oswald, S.; Gützer, C.; Pintér, G. Changes of Photovoltaic Performance as a Function of Positioning Relative to the Focus Points of a Concentrator PV Module: Case Study. Appl. Sci. 2019, 9, 3392. https://doi.org/10.3390/app9163392

AMA Style

Zsiborács H, Hegedűsné Baranyai N, Vincze A, Háber I, Weihs P, Oswald S, Gützer C, Pintér G. Changes of Photovoltaic Performance as a Function of Positioning Relative to the Focus Points of a Concentrator PV Module: Case Study. Applied Sciences. 2019; 9(16):3392. https://doi.org/10.3390/app9163392

Chicago/Turabian Style

Zsiborács, Henrik, Nóra Hegedűsné Baranyai, András Vincze, István Háber, Philipp Weihs, Sandro Oswald, Christian Gützer, and Gábor Pintér. 2019. "Changes of Photovoltaic Performance as a Function of Positioning Relative to the Focus Points of a Concentrator PV Module: Case Study" Applied Sciences 9, no. 16: 3392. https://doi.org/10.3390/app9163392

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