1. Made By:
Ronak Sheth-090410111015
Bhumika Patoliya-090410111005
Gautam Suthar-090410111063
Mentors:
Asst. Prof. N.G.Chataliya(Internal Guide)
Mr. Sagar Pawar(External Guide)

2. Contents:
• Motivation
• Block Diagram
• Charge Controller
• Inverter
• Solar tracking

3. Motivation
• The overall electrification rate in india is 64.5%, while 35.5%
of the population still lives without access to electricity.
• There are about 300 clear sunny days in a year in most part of
india and the daily average of solar energy incident over india
varies from 4-7kWh/ m2.
• If we utilize solar energy and convert into electric energy a
large part of this deficiency can be fulfilled.

4. BLOCK DIAGRAM

5. Charge controller
• The primary function of charge controller in a PV
system is to maintain the battery at higest possible
state of charge while protecting it from overcharging
the battery.
• Imporant functions of charge controller
1)Prevant battery overcharging: to limit the energy
supplied to the battery by the PV array when the
battery becomes fully charged.
2)Prevents reverse current flow: when the battery
voltage is higher than that of solar panel, current will
flow from battery towards the panel could be
damaged.

7. Components
• BC 547 transistor
• ADC 0804
• Relay
• LCD display
• 89C51 microcontroller

9. Inverter
• DEFINITION: Converts DC to AC voltage
by switching the DC input voltage in a pre-
determined sequence so as to generate AC
voltage (or current) output.
• In our circuit we will obtain AC voltage with
the help of the mosfet driver circuit and the
center tapped transformer.

11. Components
• Mosfet(IRF540N)
• PIC controller
• Centre tapped transformer
(12 v to 230 v)

12. Flow chart

15. WHAT IS SOLAR TRACKING ?
• The main aim is that one can achieve maximum
output voltage across solar panel.
• The condition for getting maximum output voltage is
that the sun and the panel both are exactly
perpendicular to each other at particular time.
• Here we are using LDR for real time tracking.

16. Block diagram

18. WORKING OF SOLAR TRACKING
• As the name implies a ‘SOLAR TRACKING’ is an instrument
used to track solar panel to get maximum energy. In solar
tracking, solar panel is perpendicular to the direction of sun
rays.
• LDR is provided to know the position of sun and the move the
panel perpendicular to the sun.
• 8051 in acknowledgement to the LDR gives signal to the DC
motor, and the motor rotates accordingly.

19. Components
• 8051 microcontroller
• Relay
• ULN 2003 ic- 7 NPN transistor array
• LDR

22. What if we don’t adapt tracking

23. THANKING YOU