The document outlines a project on solar power generation using a maximum power point tracking (MPPT) system, which includes hardware design and specifications for solar panels and boost converters. It details the electrical and mechanical specifications of the solar panels and describes the selection process for components like batteries and LCD interfaces used for user interaction. The document also references various studies and texts related to photovoltaic systems and digital electronics.

1. SOLAR POWER GENERATION
WITH MPP TRACKER
Guided by
Omega A R
Asst. Professor
Dept. of EEE
Presented by
Anoop Kumar N
Pooja Vijayan
Rinu John George
Shambhu R
Veena Chandran S
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2. INTRODUCTION .
• MPPT is a tool for extracting maximum power
from solar panel.
• Impedance matching is the principle behind
Maximum power transfer.
• Boost converter is used as the MPP Tracker
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3. HARDWARE SECTION
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4. SOLAR PANEL .
Panel Design
• Total load = 2x20 = 40W
• Working hours = 7 hrs (9:30 am to 4:30 pm)
• Total watt hour = 45 x 7 = 315Wh [load is taken as 45W with
additional 5W]
Since period of peak sunshine in a day is 4 hrs, so the panel
should capable for charging the battery within this 4 hrs
• Therefore, panel rating must be greater than (315/4 =78W)
2 Solar panel of 100W each is connected in parallel.
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5. Panel Specifications
Electrical Data Mechanical data
Pmax = 100W Solar cell - Monocrystalline
Vmpp = 17.5V No. of cells - 36 cells
Impp = 5.71A Size- 1040mm x 670mm x 34mm
Voc = 21.5V Weight - 8.25kg
Isc = 6.37A
SOLAR PANEL .
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6. Manufactures
• Tata, BHEL, Sharp
Standards
• IEC 61215 : Crystalline Silicon Photovoltaic (PV) modules
— Design qualification
• IEC 61730:Photovoltaic (PV) module safety qualification
• RFID TAG
SOLAR PANEL .
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7. BUZ 20
• N-Channel Power MOSFET
• 15A, 100V
• Gate Voltage – 20V
• Nanosecond Switching Speeds
BOOST CONVERTER .
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8. BOOST CONVERTER .
IR 2101
• High voltage, High speed Power MOSFET and
IGBT driver
• Gate Drive supply ranges from 10V to 20V
• Under Voltage Lockout
• 3.3V, 5V, and 15V Logic input compatible
• Matched propagation delay for both channels
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9. Design
Input Voltage Range (Vi) = (15 -21)V
Switching Frequency f = 10KHz
Output Voltage Vo = 35V
Rmax = 7.2Ω
D = Dlow = 1- (Vinhigh/Vo) = 1- (21/35) = 0.4 or 40%
BOOST CONVERTER .
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10. BOOST CONVERTER .
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Therefore L >
𝐷.(1−𝐷)2.𝑅𝑚𝑎𝑥
2𝑓
L >
0.4(1−0.4)2∗7.2
2∗10∗103 =51.85 uH
So we select 82 uH inductor
Critical value of Capacitor,
C =
DH .𝑇
𝑅𝑚𝑖𝑛
DH=1-(Vilow/Vo)
= 1-(15/35)
= 0.6 (60%)
Rmin = 1Ω (assumption)
C =
0.6∗0.0001
1
= 60uF
So we select 470 uFcapacitor

11. BOOST CONVERTER .
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Simulation
Fig.1:Simulation Results of a boost converter with duty cycle = 50%
9

12. Design
Load specifications = 12V, 45W
Discharging Time = 7hrs
Watt-hours = 45 x 7
= 315Whr
Thus Amps-hour = 315/12
= 26.25Ahr
12V, 50Ahr lead acid type battery selected (50% is allowed to discharge)
BATTERY .
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13. BATTERY .
Fig.2: Battery Discharging Chara
Pic courtesy: Matlab
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14. SOFTWARE SECTION
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15. LCD INTERFACE .
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• Used for User-
Device interface
• 16×2 alphanumeric
LCD
• LCD used here is
JHD 162A
Fig.3: Circuit Diagram for LCD Interfacing
12

16. ADC INTERFACE .
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• ADC used here is
ADC0804
• Step size = Vfull scale / 2n-1
• 11 pins to interface
 8 Data Pin
 3 Control Pin
Fig.4: Circuit Diagram of ADC Interface
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17. 20-01-2015
DUTY CYCLE VARIATION .
SWITCHING FREQUENCY = 10KHz
Fig.6: DUTY CYCLE -25%
Fig.7: DUTY CYCLE -75%
Fig.5: Circuit Diagram
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18. • Debugging of Entire Program
• Testing of the Hardware components
• Hardware implementation
FUTURE WORK .
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19. • Koutroulis And Voulgaris N.C., “Development of a Microcontroller-based
photovoltaic Maximum power point tracking control system”, IEEE
Transactions on Power Electronic, Vol. 16, No. 1, January 2001.
• V.C.Kotak, Preti Tyagi, 2013, DC to DC Converter in Maximum Power Point
Tracker, Vol.2, Issue12, International Journal on Advanced Research in
Electrical, Electronics and Instrumentation Engineering.
• Mohamed Azab, “A New Maximum Power Point Tracking for Photovoltaic
Systems,” World Academy of Science, Engineering and Technology, 44
2008.
REFERENCE .
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20. • S.K, Mandal, “Digital Electronics Principles and Applications,” 2nd Edition,
Tata McGraw Hill, 2011.
• Predko Myke., “Programming and Customizing the 8051 Microcontroller,
TATA McGraw Hill Production”, January 1999, Second Edition.
• ADC 0808/0809 8-bit μP compatible A/D converters with 8-channel
Multiplexer, National Instruments, October 1999 Revised March 2013.
• Kenneth J. Ayala., “The 8051 Microcontroller: Architecture, Programming,
and Applications”, Thomson Delmer Learning, July 2004, Third edition.
• Mazidi Muhammad Ali, “The 8051 Microcontroller And Embedded Systems
Using Assembly And C”, Pearson Education, September 2007, Second
edition.
REFERENCE .
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