Solar tracking system

1. WELCOME

2. CONTENTS Introduction Need for solar tracker Dual axis tracker Block diagram Circuit diagram Advantages Disadvantages Uses Conclusion

3. INTRODUCTION 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.

4. SOLAR POWER-AN INEXHAUSTIBLE ENERGY SOURCE Solar power ,the best alternative for a renewable source. Cost effective. Improved operating efficiency. Unlimited reserve because source is sun . Solar panels ,modern technology of solar energy absorption Solar panels absorbs maximum sunlight and converts it to electricity

5. WHAT IS A SOLAR TRACKER ? For orienting panel towards the sun Have light sensors and mechanical arrangement Tracks maximum intensity

6. NEED OF SOLAR TRACKER Commercial purpose Increase solar panel output Maximize power per unit area Able to grab energy throughout the day

7. 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 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.

8. BLOCK DIAGRAM X DIRECTION MOTOR LIGHT DECTECTOR (X DIRECTION ) LIGHT DECTECTOR (Y DIRECTION) COMPARATOR MOTOR DRIVING CIRCUIT Y DIRECTION MOTOR SUNLIGHT SUNLIGHT SOLAR PANEL

9. LIGHT DETECTOR LDR

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

11. COMPARATOR + output input Vref

12. LM339 Have four digital comparators in one IC Output will be either high or low Uses single supply unlike other comparators

13. MOTOR DRIVING CIRCUIT L293D

14. L293D H bridge motor driving circuit Controls two motors in both direction Takes digital input

15. H BRIDGE CIRCUIT M S1 S2 S3 S4

16. MOTORS GEARED MOTOR

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

18. DIODES 1N4148

19. 1N4148 Standard switching diode Low cost, long life and dependable Used in switching application up to 100 MHz

20. CIRUIT DIAGRAM

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

22. DISADVANTAGES Extent of cloud cover. Damages in storm.

23. SOLAR PANEL OUTPUT

24. USES For solar photovoltaic (PV) panel applications For solar thermal dish/engine applications PV PANEL DISH PANEL

25. CONCLUSION 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.

26. Any Queries ? ? ?

27. THANKS