1. NEW CONCEPT OF WIND POWER GENERATION
- BY USING KITES

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OBJECTIVE OF PAPER:
The key idea of our paper is to harvest high altitude wind energy with minimal efforts in terms of generator structure, cost and land structure
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WHAT IS KITE
???
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4. PARTS OF KITE:

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PARTS OF KITE:
fig:lines
fig:kite
fig:drum and electric drives
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Structural comparison between wind
power generation & kite generation:
fig: comparison between wind turbine
and airfoils in energy production.
in wind towers, limited blade portions
(red)contribute predominately to power
production. in kite gen,the kite acts as
the most active portions of the blades,
with out the need for mechanical support
of the less active portion and the tower
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KITE STEERING UNIT:
KG-YOYO Configuration
KG-CAROUSEL configuration
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8. KG-YOYO WIND GENERATOR:
TRACTION PHASE
PASSIVE PHASE
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HOW IT WORKS ??
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SIMULATION RESULT FOR POWER GENERATED DURING TRACTION AND PASSIVE PHASES :
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11. Simulation Results:
Kite mass (kg)
300
Characteristic area (m) 2
500
Lift coefficient
1.2
Kite aerodynamic efficiency 13
Diameter of a single line (m)
0.03
Line density (kg/m) 3
970
Line drag coefficient
Minimum cable length (m)
850
Air density (kgm) /3
Comparison between the power curves of a typical wind tower (dashed) and of a KG-yoyo (solid),
Table 1: Numerical values of KG-yoyo model employed in the numerical simulations
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12. POWER GENERATED BY SINGLE KITE(YO-YO CONFIGURATION):}
Kite area A= 500 m2
Kite efficiency, E=12
Wind speed, we = 15 m/s
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KG –FARM:
TO maximize the generated power per km while avoiding collision and aero dynamic interference among various kites
To maximize power density per km of the KG FARM
Distance between the KSU’s should be as short as possible
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Ksrm engineering college

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ADVANTAGES:
Use of simple and already known technology
Low costs for system and produced energy
Multiple kites can be easily stacked for more power
Kites do not require massive supporting base tower and plat form
Kites fly higher,therfore have more consistent and clearer wind
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DISADVANTAGES:
Kites require launching (after installation/maintenance and after a no wind period) and landing (in case of thunder storm or hurricane).  Wind turbine towers have the same lightning problem during thunderstorm but they do shut off in case of strong wind during hurricane (modern wind turbines normally shut off when the wind reaches 90 km/hr and the whole structure can survive hurricane wind up to 220km per hr
Regulation and safety issues for high flying kites:
Not deployable within 5 miles radius of an airport
For self-floating kite, need Rapid Deflation Devices that can bring the kite down in case of escape from moor
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ECO-FRIENDLY:
Production of renewable energy without co2 emission
Produces negligible noise
Does not emit green house gases, ash and particulate matter
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17. COMPARISION BETWEEN ACTUAL WIND TOWERS AND KITES:
FACTOR
WIND TOWER
KITES
AREA(for installation)
MORE
LESS(30-50times)
MASS
250 TONS
2 TONS
HEIGHT
MTS
MTS
POWER GENERATED
(for 9m/s wind speed)
1MW
2 MW
COST
LESS(10-20times)
NOISE
LESS
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18. SCALABILITY AND ENERGY COST
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KIT E GEN PRODUCTS:
There are a couple of companies currently trying to enter the kite energy market and main ones are:
Sky wind power
Magenn
Sky wind power is promoting the Flying Electric Generator (FEG), Magenn is prototyping the Magenn Power Air Rotor System (MARS), Sequoia Automation is introducing the Kite Generator and Briza Technology is aiming for the Hovering Wind Turbine Technology.
Furthermore, there was the Laddermill project introduced in 2003 but apparently there is no new development since September 2003
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FUTURE PRODUCTS:
An Italian company called KITEGEN has multikite scheme that could generate a GIGAWATT of power ,as much as a standard coal plant
Researchers plan to test a 50KW version , called LADDERMILL.
Eventually, their goal is to built a multi-kite system that could generate a full 100 MW
Some researchers estimate kites provides more than 100 times the amount required to power the entire planet
FIG:LADDER MILL
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CONCLUSION:
The kite technology, capturing the wind power at significantly higher altitude over ground than the actual wind towers, has the potential of generating renewable energy available in larger quantities almost every where with a cost even lower than that of fossil energy
Researchers predict prices to comparable with generating electricity using coal power, and half that using wind turbines
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REFERENCES:
M. Canale, L. Fagiano and M. Milanese, “High Altitude Wind Energy Generation using Controlled Power Kites,” IEEE transactions on Control Syst., vol.18, no. 2, pp , March, 2010.
M. Canale, L. Fagiano and M. Milanese, “Power kites for wind energy generation,” IEEE Control Syst. Mag. , vol. 27, no. 6, pp , Jun, 2007.
M. Canale, L. Fagiano and M. Milanese, “Kitegen: A revolution in wind energy generation,” Energy, vol. 34, no. 3, pp , 2009
M. Canale, L. Fagiano, M. Milanese and M. Ippolito, “Control of tethered airfoils for a new class of wind energy generation,” in Proc. 45th IEEE Conf. Decision and Control, San Diego, CA, 2006, pp
[5]R. Thresher, M. Robinson and P.Veers, “To capture the wind,” IEEE Power Energy Mag., vol.5, no. 6, pp , 2007
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