Automatic solar tracking system using geared motor control

1. AUTOMATIC SOLAR TRACKING
SYSTEM USING INTERFACING IC
AND GEARED MOTOR
PROJECT GUIDE:
PROF. K.UMADEVI /HOD,EEE
PROJECT MEMBERS:
R.GOVINDARAJU (110406625013)
GOVINDARAJU.R (110406625013)
LOGU .M (110406625021)
NITHYAKUMAR.R (110406625025)
PALANISAMY.M (110406625027)
ELECTRICAL AND ELECTRONICS ENGINEERING
EXCEL COLLEGE OF ENGINEERING AND TECHNOLOGY
ANNA UNIVERSITY: CHENNAI 600 025

2. ABSTRACT
 Solar tracking systems are the most appropriate and proven
technology to increase the efficiency of solar panels by
keeping the panels aligned with suns position with the help
of interfacing IC and Geared motor. In this project an
interfacing IC is used to make the system as automatic
solar tracker. Geared motor helps to adjust the axis of the
solar panel both vertical (X) and horizontal (Y) position
without any sensor and programmable IC unit.

3. SUN’S APPARENT MOTION

4. EXISTING SYSTEM
 Only automatic control
 Memory used , cost wise high
 Stepper motor used, less load applications only

5. PROPOSED SYSTEM
 Both automatic and manual
 Maintenance is less
 Geared motor used , large load applications

6. BLOCK DIAGRAM

7. CIRCUIT DIAGRAM

8. Dual Axis Trackers
 Double axis solar trackers have both
a horizontal and a vertical axle and
so can track the Sun's apparent
motion exactly anywhere in the
world.
 Dual axis trackers track the sun both
East to West and North to South for
added power output (approx 40%
gain) and convenience

9. LIGHT DEPENDENT RESISTOR
 Used to sense or detect light
 Resistor whose resistance
decreases with increase in
intensity of light
 Made of high resistance
semiconductor

10. COMPARATOR
A comparator is a device that compares two voltages
or current and outputs a digital signal indicating which is
larger. It has two analog input terminals -v and +v and one
binary digital output v0

11. MOTOR DRIVING CIRCUIT L293D
L16-pin IC which can control a set of two DC motors
simultaneously in any direction. It means that you can control
two DC motor with a single L293D IC. Dual H-bridge 293D is a
typical Motor driver or Motor Driver IC which allows DC motor
to drive on either direction. L293D is a Motor Driver integrated
circuit (IC).

13. H BRIDGE CIRCUIT

14. GEARED MOTOR
 Two geared motors in X
and Y direction
 Used to transmit torque to
the panel arrangement

15. ADVANTAGES
 More efficient compared to normal arrangement.
 Energy output increases up to 30-40% than normal
stationary. arrangement.
 High degree of accuracy.
 Eco friendly.

16. USES
 For solar photovoltaic (PV) panel applications
 For solar thermal dish/engine applications

17.  From our project, it helps to increase the efficiency
of output power up to 30 to 45% without using sensor
and programmable IC unit. This project can able to use
illiterate people also.
 There is no requirement of technician for solving
problem occurring in the project reinstallation after
updating the advancement process in solar energy
conversion system. Here we can easily upgrading the
project for future enhancement also

18. SCREEN SHOT