Compensation of Axis Errors of Azimuth and Zenith Moving Concentrators in Programmable Solar-Tracking Systems
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.
Unable to display preview. Download preview PDF.
- 2.Arzhanov, K.V., Two-circuit breading system of solar batteries on the Sun, Izv. Tomsk. Politekh. Univ., 2014, vol. 324, no. 4, pp. 139–146.Google Scholar
- 5.Abdurakhmanov, A., Saribaev, A.S., Akbarov, R.Yu., and Yuldashev, A.K., Kinematic and dynamical characteristic of large solar furnace heliostat, in Vozobnovlyaemye istochniki energii i geliomaterialovedenie, Tr. mezhd. konf. (Proceedings of the International Conference on Renewable Energy Sources and Helio-Material Science, Sept. 29–30, 2005, Tashkent).Google Scholar