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

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.

SUN’S APPARENT MOTION

EXISTING SYSTEM

Only automatic control

Memory used , cost wise high

Stepper motor used, less load applications only

PROPOSED SYSTEM

Both automatic and manual

Maintenance is less

Geared motor used , large load applications

BLOCK DIAGRAM

CIRCUIT DIAGRAM

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

LIGHT DEPENDENT RESISTOR

Used to sense or detect light

Resistor whose resistance

decreases with increase in

intensity of light

Made of high resistance

semiconductor

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

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).

H BRIDGE CIRCUIT

GEARED MOTOR

Two geared motors in X and Y direction

Used to transmit torque to the panel arrangement

ADVANTAGES

More efficient compared to normal arrangement.

Energy output increases up to 30-40% than normal

stationary. arrangement.

High degree of accuracy.

Eco friendly.

USES

For solar photovoltaic (PV) panel applications

For solar thermal dish/engine applications

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

SCREEN SHOT