Electronic Science and Technology ›› 2019, Vol. 32 ›› Issue (5): 81-85.doi: 10.16180/j.cnki.issn1007-7820.2019.05.015

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Research of Sun Ray Tracing Sensors Based on Rotating Cylinder with Solar Cell

YAN Fagao1,CHEN Hong2   

  1. 1. Wujin Open University,Changzhou 213149,China
    2. Taizhou College,Nanjing Normal University,Taizhou 225300,China
  • Received:2018-04-28 Online:2019-05-15 Published:2019-05-06
  • Supported by:
    Fund Project of Water Resources Department of Jiangsu Province(2017066)


As for the solar ray angle measurements, the switching measurement method has disadvantages including poor precision and a large number of photosensitive elements while analog measurement have the deficient of small measurement range, inconsistent photosensor characteristics. To solve these problems, a method of rotating cylinder with PV cell was proposed in the study. The cylindrical surface has a special groove that is axially and inclined. After the cylinder was rotated, the azimuth and elevation angles were calculated by measuring the rotation angle of the maximum current at the bottom of the photovoltaic cell. Parabolic interpolation was utilized to increase the accuracy of the rotation angle at the maximum point of quadratic curve. Experimental test showed that the proposed method could achieve better measurement accuracy.

Key words: solar energy, sun ray angle, rotating cylinder, PV cell, PV, sun tracking

CLC Number: 

  • TN108.7