Wind-Solar Hybrid Power Generation Model

Here i'm going to share my final-year college project "Wind-solar hybrid power generation model" that i've built and completed recently. the very basic outline of this project (or you can say the abstract) is that -The combination of power output from solar PV module and wind mill is being stored and utilized thru' a battery for a stand-alone system. This model also can be used in a grid-tie system with help of a moderate PCU(Power Converting Unit).

Abstract:

Wind power generation and solar power generation are combined to make a WIND-SOLAR HYBRID POWER GENERATION SYSTEM. A 6v, 5Ah lead-acid battery is used to store solar power and charging is controlled by a charger circuit which has been discussed here. Power output of this hybrid system is 7 watts (9VDC, 0.77A DC) .

The Working Model

The working model of Wind-Solar hybrid power generation consists of a twin-turbine wind mill and a solar PV array(with two PV module). First i'm going to discuss about the Wind-mill.

Construction of Wind-Mill

• Here, we used two PMDC (Permanent Magnet DC) motors to work as a generator.
•  Both are same rated i.e. 12V, 0.75Amps, 2400 rpm .
•  Two symmetrical 3-bladed set made of aluminum used as turbine blade.
•  These two-turbine are connected in series so that output voltage is the result of the summation of these twin-turbine set.
•  Height of the wind-mill stand is about 24 inches.
•  Distance between the turbines is about 8 inches.
•  Base of the wind-mill is 6x6 sq. inches
•  Diameter of the turbine-holder is 1.25 inches.

Twin-turbine Wind-Mill

Twin-Turbine Wind-Mill at Working condition

--powering a 6V LED Circuit

Voc of each turbine displaying on multimeter

Voc Testing of the turbine

Solar Power Generation

• Here comes the next part : solar power. for solar power generation we used two 6V, 3Watts PV module.
• Connect them in series to get 12V DC output.
• Output of these two module will then feed to a 6V,5Ah lead-acid battery via a charger circuit.
• In this image you can see two solar PV module connected in series whose output are send to the charger circuit and the output of the charger circuit is connected to a 6V, 5Ah lead-acid battery.

• The details of the Charger Circuit provided in another post.Please go through it.Link is here-6V, 5Ah Lead-Acid battery Charger Circuit  

Output of the Charger Circuit

  The Whole system:

• Ouput of The lead-acid battery(which is charged by the solar array) is connected in series with the Wid-mill.
• output of this hybrid system is powering up a 6V LED lighting system.

Output of the Lead-Acid Batt.

Working Charger Circuit

The Lead-Acid Batt.

The 6V LED lightng board

Wind-Solar Hybrid Power Generation Model

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About the Author

Amrit Mandal is a final year B.tech (EE) Student, Admin of this blog. He likes to work in the renewable energy field-specially in solar energy field.
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