Direct tracking error characterization on a single-axis solar tracker

Sallaberry, Fabienne; Pujol-Nadal, Ramón; Larcher, Marco; Rittmann-Frank, Mercedes Hannelore

doi:10.1016/j.enconman.2015.08.081

Cited by 72 publications

(24 citation statements)

References 16 publications

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“…It was observed that the behaviour of trackers nº 1-4 was similar, and that the trackers nº 5 and 6 had a similar behaviour too. Comparing to previous studies [16,24], the tracking error lower than 0.5º is in line with normal PTC trackers behaviour. From the optical simulation with Tonatiuh, the values of IAM of different longitudinal and transversal angles were calculated and shown in Fig.5.…”

Section: Resultssupporting

confidence: 88%

Evaluation of the tracking accuracy of parabolic-trough collectors in a solar plant for district heating

Sallaberry

Tian

Jauregi

et al. 2018

AIP Conference Proceedings

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Section: Resultssupporting

confidence: 88%

Evaluation of the tracking accuracy of parabolic-trough collectors in a solar plant for district heating

Sallaberry

Tian

Jauregi

et al. 2018

AIP Conference Proceedings

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“…• solar tracking systems with one axis (rotating around one axis) [28][29][30][31][32], • solar tracking systems with two axes (rotating around two axes) [22,[33][34][35]. The efficiency of a solar tracking solution will be higher than that of a fixed PV system.…”

Section: Energy Production and Accuracy Features Of Dual Tracking Pv mentioning

confidence: 99%

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

et al. 2019

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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.

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“…The collector elevation data  c was recorded by the digital inclinometer. This testing methodology was also used in [9,10]. To measure the tilt of the solar tracker with respect to the horizontal plane a digital inclinometer model PRO 3600 manufactured by Mitutoyo is used.…”

Section: Tracking Accuracymentioning

confidence: 99%

Towards standardization of in-site parabolic trough collector testing in solar thermal power plants

Sallaberry

Valenzuela

Jalón

et al. 2016

AIP Conference Proceedings

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Abstract. This paper presents a summary of the testing procedure and a validation of the methodology of parabolic trough collector in solar thermal power plants. The applied testing methodology is the one proposed within the Spanish standardization sub-committee AEN/CTN 206/SC117 working group WG2 related to the components for solar thermal power plants. This methodology is also proposed within the international committee IEC TC 117 (Standard draft IEC 62862-3-2 Ed. 1.0). This study is done at Plataforma Solar de Almería (PSA) in Almeria within the European project STAGE-STE. This paper presents the results of the optical and thermal efficiency of a large-size parabolic trough collector. The obtained values are similar to the previous analysis on this collector by PSA. The results of the tracking system have a good accuracy compared to the acceptance angle of the concentrator.

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Direct tracking error characterization on a single-axis solar tracker

Cited by 72 publications

References 16 publications

Evaluation of the tracking accuracy of parabolic-trough collectors in a solar plant for district heating

Evaluation of the tracking accuracy of parabolic-trough collectors in a solar plant for district heating

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

Towards standardization of in-site parabolic trough collector testing in solar thermal power plants

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