3. Hardware Components:
Solar panel
Boost converter
A/D (analog to digital) converter
8051 MC (Micro controller)
LCD display
Relay
RPS (Regulated power supply)
4. Our project is a device that will allow a solar panel to
efficiently recharge a DC battery.
The controller will vary the voltage across the panel to
find and maintain the maximum power point.
By monitors the battery voltage level and charges the
battery using pulse width modulation techniques.
By using the Boost converters to increasing the solar
panel output voltage because of the at any system we use
5. The PV string converters which converts solar
radiation in to dc power.
Many types of photovoltaic (PV) power conversion
6. Here we are using two power supply's. One is the A.C supply and
another one is the d.c supply.
A.C supply - RPS (Regulated Power Supply)
D.C supply (solar o/p power):- Boost converter
7. It is also called as photovoltaic cell. Here we are using
flat type solar panel.
28 cells are used in this flat type solar panel. Total cells
are dividing in to four groups.
Each group we conceder 7 cells by connecting in series
it gives the total voltage as 2.4V & Four groups are
connected in parallel.
Each cell as produced the voltage is 0.35V but
naturally, as for the design and using the different type of
metals solar cell produced the voltage in b/w 0.35V to
8. It is also known as a step up converter, that means the
output voltage is grated than the source voltage
Switch is closed – current flow is +ve – L – S – -ve & L –
Charging
inductor current ΔIL = (VS / L) * (DT)
Switch is opened – current flow is +ve – L – D – R & C
– -ve & L-Discharge.
9. Real-world signals must be converted into digital, using a
circuit called ADC (Analog-to-Digital Converter), before they
can be manipulated by digital equipment.
The frequency on which the sampling will occur is called
sampling rate.
If a sampling rate of 22,050 Hz is used, for example, this
means that in one second 22,050 points will be sampled.
Thus, the distance of each sampling point will be of 1 /
22,050 second (45.35 µs, in this case).
If a sampling rate of 44,100 Hz is used, it means that
10. The generic 8051 architecture supports a Harvard
architecture.
Optimized 8 bit CPU for control applications and
extensive Boolean processing capabilities.
64K Program Memory address space & 64K Data
Memory address space.
128 bytes of on chip Data Memory.
32 Bi-directional and individually addressable I/O lines.
Two 16 bit timer/counters.
On chip clock oscillator.
11. As for the operation the RPS can be classified in to
four parts, they are
1. Transformer
2. Bridge Rectifier
3. Smoothing Capacitor
4. Voltage regulator
12.
13. Increasing the life time of battery.
Clean, no Noise.
Controlling is simple.
Free.
Any place we can implement for charging purpose as
you can change the rated value of system.
14. Initial cost is more
It work at only morning sections other wise
it not work
Interconnect costs
Size
18. The solar electric charge controller
regulates the power. Portable power supply it supplies
the power accordingly. It automatically disconnect the
charging system when it get the high or lower of rated
power (rated power rage in between 3.7V to 4.7V). When
the range of power at rated power at that time it conducts
the charging.
19. High rated solar power generation station
can also implement this system because the rated
power can modify in this system accordingly. We can
increase the rated power more than 4.7V.
20. The 8051 Micro controller and Embedded Systems -
Muhammad Ali Mazidi, Janice Gillispie Mazidi
The 8051 Micro controller Architecture, Programming &
Applications – Kenneth, J.Ayala
Power electronics and drives by M.D Rashid
Linear integrated analysis by ray chowdary
