MPPT Based SEPIC Converter Using Perturb and Observe Algorithm
In renewable energy resources, photovoltaic based solar energy has an issue of not providing constant power due to variation in weather and temperature conditions. To overcome this issue maximum power point technique MPPT has been used. For this, a converter to step up, step down or keeping the
Project Title
MPPT Based SEPIC Converter Using Perturb and Observe Algorithm
Project Area of Specialization
Project Summary
In renewable energy resources, photovoltaic based solar energy has an issue of not providing constant power due to variation in weather and temperature conditions. To overcome this issue maximum power point technique MPPT has been used. For this, a converter to step up, step down or keeping the voltage level according to load requirement is required. “Perturb and Observe” algorithm has been used in this work, which will draw maximum power from sunlight.
Project Objectives
Implementation of SEPIC(single ended primary inductor converter) circuit.
MPPT control of PV system using perturb and observe algorithm.
To get High Efficiency.
Project Implementation Method
P&O Algorithm will identify the suitable duty ratio in which DC/DC SEPIC converter should be operated to maximize the output power.
It will Measure the power variation due to previous voltage and atmosphere change and keep PV voltage constant for next control period.
Measures the power variations and determines new PV voltage based on present and previous power variations
Benefits of the Project
Normally Buck Boost Converters are used in DC systems to increase or decrease voltages but we need to attach a filter to minimize input current ripples. But in SEPIC no need to attach an extra filter to remove input current ripples.
Buck boot causes reversal of polarity but SEPIC does not.
There is a large electrical stress on components in cuk converters which may cause overheating or damages circuit.
Technical Details of Final Deliverable
Solar panel: 80W
Voc=20.8V Max.power voltage=18V
Isc=3.9A Max.power current=3.2A
Input capacitors 2200uF,50V..
Coupling capacitor 2200uF,50V.
2Output capacitors 2200uF,50V
2 inductors 470±35uH.
Current sensors ACS712
MOSFET IRF1407
Diode RHR15120
Gate Driver IC IR2112
Load 42W
Ardiuno ATMEGA328P
Final Deliverable of the Project
Type of Industry
Technologies
Sustainable Development Goals
Required Resources
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| solar panel | Equipment | 1 | 7000 | 7000 |
| PCB | Equipment | 1 | 600 | 600 |
| inductors | Equipment | 2 | 150 | 300 |
| capacitor | Equipment | 4 | 25 | 100 |
| Mosfet | Equipment | 1 | 250 | 250 |
| Schottky diode | Equipment | 1 | 100 | 100 |
| Resistors | Equipment | 8 | 3 | 24 |
| LCD | Equipment | 1 | 300 | 300 |
| Arduino uno | Equipment | 1 | 700 | 700 |
| Current sensor | Equipment | 2 | 240 | 480 |
| ICs | Equipment | 3 | 50 | 150 |
| load | Equipment | 3 | 2000 | 6000 |
| Connecting Wires | Equipment | 10 | 10 | 100 |
| Acrylic sheet | Miscellaneous | 3 | 300 | 900 |
| Report Printing | Miscellaneous | 7 | 400 | 2800 |
| Fares | Miscellaneous | 6 | 400 | 2400 |
| Acrylic Printing | Miscellaneous | 3 | 600 | 1800 |
| - | Miscellaneous | 0 | 0 | 0 |
| Total in (Rs) | 24004 |
If you need this project, please contact me on contact@adikhanofficial.com
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