Dual Axis Solar Tracker

• Introduction

• Need for solar tracker

• Dual axis tracker

• Block diagram

• Circuit diagram

• Advantages

• Disadvantages

• Uses

• Conclusion

• In the verge of a major energy crisis as

energy consumption is increasing day by day

and energy sources are depleting.

•Solar energy is a renewable source of

energy which can avoid this crisis to an

extent.

SOLAR ENERGY :Major Eco-friendly & Pollution less method of producing the electricity today.

• For orienting panel towards the sun

• Have light sensors and mechanical arrangement

• Tracks maximum intensity

Commercial purpose

•Increase solar panel output

•Maximize power per unit

area

•Able to grab energy

throughout the day

• Dual axis solar trackers have

both horizontal and a vertical

axle and so can track the

Sun's apparent motion

exactly anywhere in the

world.

DUAL AXIS SOLAR TRACKER :

•Dual axis trackers track the sun

both East to West and North to

South for added power output

(approx 40% gain) and

convenience.

X DIRECTION MOTOR

LIGHT DETECTOR(X DIRECTION)

LIGHT DETECTOR (Y DIRECTION)

COMPARATOR MOTOR DRIVING CIRCUIT

Y DIRECTION MOTOR

SUNLIGHT

SUNLIGHT

SOLAR PANEL

•Used to sense or detect light

•Resistor whose resistance

decreases with increase in intensity

of light

•Made of high resistance

semiconductor

+

output

input

Vref

•Have four digital comparators in

one IC

•Output will be either high or low

•Uses single supply unlike other

comparators

L293D

•H bridge motor driving circuit

•Controls two motors in both direction

•Takes digital input

• Two geared motors in X and Y direction

•Used to transmit torque to the panel arrangement

•Standard switching diode

•Low cost, long life and dependable

•Used in switching application up to

100 MHz

• More efficient compared to normal

arrangement.

• Energy output increases up to 30-

40% than normal stationary.

arrangement.

• High degree of accuracy.

• Eco friendly.

• Extent of cloud cover.

• Damages in storm.

• For solar photovoltaic (PV) panel applications

• For solar thermal dish/engine applications

PV PANEL

DISH PANEL

• Solar tracking system is more efficient than ordinary panels.

• Able to reduce energy crisis to a great extent with effective use of solar energy by means of tracking.