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The project deals with design of solar power LED lighting system using Horizontal
Two-Axis Arduino based Solar Tracking System. The main goal of this project is to design
a very precise solar tracker. The project is divided into two parts; hardware and
software. Hardware part generally composed of solar panel, two-DC motors with
gearbox, LDR sensor module and electronic circuit. Software part represents the thinking
behavior of the system, that is how the system acting under several weather conditions. In
this work sensing of the sun position carried out in two stages primary and secondary.
Primary stage or indirect sensing performed via sun-earth relationship as a coarse
adjustment and second stage or direct sensing performed via set of LDR sensors as output
tuning to trims the azimuth and altitude angles. If the weather is cloudy or dusty, the
tracking system uses primary stage or sun-earth geometrical relationships only to identify
the location of the sun; so the system tracks the position of the sun regardless the weather
condition. The energy extracted from photovoltaic (PV) or any solar collector depends on
solar irradiance. For maximum extraction of energy from the sun, the solar collector
panel should always be normal to the incident radiation Solar trackers moves the solar
collector to follow the sun path and keeps the orientation of the solar collector at an
optimal tilt angle. Solar tracking system improves substantially the energy efficiency of
photovoltaic (PV) panel. In this paper, an automatic dual axis solar tracking system is
designed and developed using Light Dependent Resistor (LDR) and DC motors on a
mechanical structure with gear arrangement. Two axis solar tracking (azimuth angle as
well as altitude angle) is implemented through Arduino UNO controller based on Sun
Earth Geometry. The results indicated that the automatic solar tracking system is more
reliable and efficient than fixed one.
The project deals with design of solar power LED lighting system using Horizontal
Two-Axis Arduino based Solar Tracking System. The main goal of this project is to design
a very precise solar tracker. The project is divided into two parts; hardware and
software. Hardware part generally composed of solar panel, two-DC motors with
gearbox, LDR sensor module and electronic circuit. Software part represents the thinking
behavior of the system, that is how the system acting under several weather conditions. In
this work sensing of the sun position carried out in two stages primary and secondary.
Primary stage or indirect sensing performed via sun-earth relationship as a coarse
adjustment and second stage or direct sensing performed via set of LDR sensors as output
tuning to trims the azimuth and altitude angles. If the weather is cloudy or dusty, the
tracking system uses primary stage or sun-earth geometrical relationships only to identify
the location of the sun; so the system tracks the position of the sun regardless the weather
condition. The energy extracted from photovoltaic (PV) or any solar collector depends on
solar irradiance. For maximum extraction of energy from the sun, the solar collector
panel should always be normal to the incident radiation Solar trackers moves the solar
collector to follow the sun path and keeps the orientation of the solar collector at an
optimal tilt angle. Solar tracking system improves substantially the energy efficiency of
photovoltaic (PV) panel. In this paper, an automatic dual axis solar tracking system is
designed and developed using Light Dependent Resistor (LDR) and DC motors on a
mechanical structure with gear arrangement. Two axis solar tracking (azimuth angle as
well as altitude angle) is implemented through Arduino UNO controller based on Sun
Earth Geometry. The results indicated that the automatic solar tracking system is more
reliable and efficient than fixed one.
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