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Compensation of Axis Errors of Azimuth and Zenith Moving Concentrators in Programmable Solar-Tracking Systems

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Abstract

The solar-energy industry is currently concerned with improving software systems of sun-tracking concentrators. It is a feature of programmable tracking that there is no feedback from the tracked object, unlike in the case of optical tracking. In this regard, the accuracy of programmable tracking is affected by a large number of factors—in particular, axis-alignment errors. An error-checking algorithm is considered for the azimuth and zenith concentrator axes in programmable sun tracking. Effects of these errors on the accuracy of programmable tracking are assessed. It is shown that zenith axis errors have the same amount of influence as the vertical deviation of the azimuth axis, primarily affecting the azimuth angle, while its influence on the solar elevation can be neglected. The cumulative effect of axial errors is most noticeable when they have the same signs and lie in the same plane.

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Authors and Affiliations

  1. Physical Technical Institute Physics of the Sun, Academy of Sciences of Uzbekistan, Tashkent, 700084, Uzbekistan

    S. A. Orlov

  2. Tashkent State Technical University Named after Islam Karimov, Tashkent, 100095, Uzbekistan

    Sh. I. Klychev

Authors
  1. S. A. Orlov
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  2. Sh. I. Klychev
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Corresponding author

Correspondence to Sh. I. Klychev.

Additional information

Original Russian Text © S.A. Orlov, Sh.I. Klychev, 2018, published in Geliotekhnika, 2018, No. 1, pp. 70–74.

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Orlov, S.A., Klychev, S.I. Compensation of Axis Errors of Azimuth and Zenith Moving Concentrators in Programmable Solar-Tracking Systems. Appl. Sol. Energy 54, 61–64 (2018). https://doi.org/10.3103/S0003701X18010097

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  • DOI: https://doi.org/10.3103/S0003701X18010097

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