Automatic solar tracker is a system which helps to boost the energy production of solar panel. The whole system even does not need any external power source,

1. AUTOMATIC SOLAR TRACKING
SYSTEM
By: Saumya Ranjan Behura
Regd No.-1521292032

2. INTRODUCTION
 A solar tracking system can be used as a power generating
method from sunlight.
 This project helps for power generation by setting the equipment
to get maximum intensity sunlight automatically.
 When there is decrease in intensity of light, this system
automatically changes its direction to get maximum intensity of
light.

3. CONTENTS:-
•What is a Solar Tracker ?
• Need for a Sun Tracking System
• Condition for Maximum Output
• Basic Components
• The Working
• Applications
• Advantages & Disadvantages
• Conclusion
•References

4. What is a solar Tracker ?
A solar tracker is a generic term used to describe
devices that orient or align various payloads toward
the sun.
Example for payloads are photovoltaic panels,
reflectors, Collectors, lenses or other optical devices.
The system focuses on the optimization of the
electric energy produced by photovoltaic cells
through the development of a sun-tracking system.

5. Need For A Sun Tracking System
Global worming has increased the demand and request for
green energy produced by renewal sources as solar power.
Solar energy has been the power supply of choice for
industrial application where power is required at remote
locations.
Solar tracking is increasingly applied as a effective power
generation .

7. Conditions For MaximumOutput
The difference between the incident ray and the reflected ray should
be equal to zero, i.e. the rays should be perpendicular to the panel.
The altitude is directly proportional to the efficiency of the system up
to a certain limit.
Very clear sky and clean atmosphere contributes a bit more to the
efficiency of the system.

8. Basic Components
The Solar Panel
Stepper Motor
Actuator
Microcontroller
A Display Unit (Optional)
Interfacing Cables

9. The Working
Interfacing between hardware and microcontroller
Inputs to microcontroller
Controlling constraints

10. Circuit Diagram

11. The Inputs
The various positions of the sun over a year for a particular
geographical location is given as the primary input to the
microcontroller.
 The irradiance of the sun for a particular geographical location
over a year is the input for the microcontroller.
The real time clocking is enabled in the microcontroller.

12. Controlling Constraints
The microcontroller is programmed to orient the panel at optimum
position against the sun, via comparing to the inputs given.
The microcontroller is set with a lower tolerance for the voltage
produced.
If the voltage produced is above the tolerance then it holds the
position of the panel.
If the voltage falls below the tolerance, then the panel changes the
position in the forward direction.

13. Applications
Can be used for small & medium scale power generations.
For power generation at remote places where power lines are
not accessible.
For domestic backup power systems.

14. Advantages
• Solar tracking systems continually orient photovoltaic
panels towards the sun and can help maximize your
investment in your PV system.
• One time investment, which provides higher efficiency &
flexibility on dependency over other sources.
• Tracking systems can help reducing emissions and can
contribute against global warming.
• Bulk implementations of tracking systems help reduced
consumption of power by other sources.
• It enhances the clean and emission free power
production.

15. Disadvantages
Initial investment is high on solar panels.
It’s a bit of difficult for servicing, as the tracking systems are not
quite popular regionally.
Moving parts and gears which will require regular maintenance.
May require repair or replacement of broken parts over a long
run.

16. Conclusion
On one hand we can see the worlds energy resources depletion to
be a major problem.
On the other hand global warming, which is a major concern.
Switching to solar power, which is clean and green and enhancing
its efficiency by using sun trackers is a great option in the near
future .

17. References
www.studymafia.org
www.wikipedia.com
www.google.com
www.pptplanet.com