Dual Axis Self-tracking Solar Panel

Chettri, Srijesh; Chettri, Arpan; Chettri, Susan

doi:10.5120/ijca2016909742

Cited by 2 publications

(1 citation statement)

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“…As a result, the LDR sensors register an insolation difference only when there is a considerable variation in the solar radiation readings recorded in the opposite sensors. The intensity of light sensed by the LDRs work as analog input data for the microcontroller [12,13]. The pair of LDRs installed along the vertical axis (or north-south axis) controls the seasonal tracking of the sun and the pair along the horizontal axis (or eastwest axis) dictates the movement along the azimuth.…”

Section: Arrangement Of the Ldrsmentioning

confidence: 99%

Fabrication and Performance Analysis of a Higher Efficient Dual-Axis Automated Solar Tracker

Rahman

Hossain

Uddin

et al. 2019

IJEE

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In this work, a dual-axis automated solar tracker is developed by using two linear motors, four light dependent resistors (LDRs) and two mono crystalline solar panels. The LDRs are placed on the rotating frame where the solar panels are placed to detect the position of the sun and the controller circuit drives the motors to place the frame towards the sun. The controlling unit has been developed using PLC microcontroller. The motor driver circuit has been designed using a code to align the solar panels to a suitable position so that it is exposed to the maximum amount of solar irradiance. The driver circuit receives data from the LDRs and the microcontroller controls the motors to move the panel along its horizontal and vertical axis. To evaluate the performance of the solar tracker, output power of the solar tracker and an identical set of static solar panels set in an optimum fixed orientation are measured from the open-circuit voltage and the short circuit current for two consecutive days. The output power produced by the automatic solar tracker was consistently higher than that by the static solar panel. The energy gain due to using the automatic solar tracker is at highest in the morning and in the afternoon at almost 40%. The lowest value of energy gain is observed during noon at as low as 1%. The average increase in output throughout the day is 24.09%.

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Section: Arrangement Of the Ldrsmentioning

confidence: 99%