An Examination on Improvement of Tracking Accuracy of Solar Tracking System

Authors

  • Sun-Pil Kwon
  • Byoung-Jo Jung

Abstract

Background/Objectives: In order to improve the tracking accuracy of the solar tracking system, we try to check the angular resolution of the gearbox that were designed and manufactured. Methods/Statistical analysis: In order to improve the accuracy of the solar tracking system, the drive unit was designed by applying a harmonic gear with less backlash. The angular resolution of the driving unit applying mock-up of the designed gearbox and the solar elevation data of Korea Astronomy and Space Science Institute were compared. Findings: The angle was input in 0.1 degree steps to the drive control panel of the solar tracking system, and the angular resolution within 0.2 degree was checked by the rotation angle measurement of the drive unit. We checked the data deviation within 0.2 degree through comparison with the data of Korea Astronomy and Space Science Institute by the altitude and azimuth angle data of the sun according to time zone measured by the solar tracking system to which the mock-up drive unit was applied. Improvements/Applications: The drive of the solar tracking system showed excellent angular resolution within 0.2 degrees.It can be applied to louver systems, natural light systems, photovoltaic power generation systems, etc. that can improve performance by tracking the altitude of the sun.

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Published

2019-11-22

Issue

Section

Articles