The scope of transmission of energy is now possible, all it needs is implementation. There is a lot of power loss due to wired mechanism. This ppt describes many possible solutions.

1. PRESENTED BY-
SHASHANK KAMAL
SHUBHAM JAIN

2.  About topic
 What does wireless mean
 History
 Types of W.P.T
 Atmospheric conduction method
 Electrodynamic induction method
 Positive points and Negative Points
 Applications
 Conclusion
 References
2Wireless Power Transmission

3. • Major Issue is loss of Energy during Transmission and
Distribution.
• Approximately 26% power is lost during transmission and
distribution.
• The main reason of loss is Resistance of Wires.
• According to the World Resources Institute (WRI), India
has maximum loss of power i.e. about 27-40%.
• Tesla had proposed methods of transmission of electricity
using electromagnetic induction.

4. • The word wireless means “without wire”.
• Wireless energy transfer or wireless power is the
transmission of electrical energy from a power source to an
electric load without interconnecting man made
conductors.
• Wireless transmission is useful in cases where
interconnecting wires are inconvenient, hazardous or
impossible.

5. Different methods of transmission proposed by different
scientist and scholars are:
1. Atmospheric conduction method of Tesla
2. Electrodynamic induction method:
 Microwave method
 Laser method

6. • In 1899 Sir NICOLAI TESLA and HEINRICH HERTZ powered
a fluorescent lamp keeping it 25 miles away from source
without using wire.
• Wireless power transmission experiments at WARDEN
CLYFFE High frequency current, of a Tesla coil, could light
lamps filled with gas (like neon).
• In this method a closed circuit is made using transmitter,
ionized path between upper atmosphere and transmitter,
second ionized path connecting receiver.
• The circuit back to the transmitter is completed through the
earth .

7. • High potential is maintained at transmitter and receiver end
as well. A high potential transmitter transmits an
“electromotive impulse” .
• It ionizes the air, and this air between the transmitter and
receiver would conduct like a neon tube .
Image reference: Dr. Tesla Weather Control: http://www.aniruddhafriend-
samirsinh.com/wp-content/uploads/2015/11/Dr.-Nikola-Tesla-Weather-Control.jpg

8. • Economically challenging.
• Periodic changes in atmospheric condition.
• Maintaining high tower potential every time.

9.  We bring electromagnetic radiation into
practice, which uses far field technique in order
to achieve range into kilos, which includes two
techniques:
• LASERS
• MICROWAVE
Image Reference: Laser Based Power Transmission:
https://upload.wikimedia.org/wikipedia/commons/6/66/Space_to_ground_microwave,_laser
_pilot_beam.png

10.  LASER is highly directional, coherent
 Not dispersed for very long distance
 But, gets attenuated when it propagates through
atmosphere
 Simple receiver
 Photovoltaic cell
 Cost-efficient
10Wireless Power Transmission

11. • In the case of electromagnetic radiation, power can be
transmitted by converting electricity into a laser beam.
• LASER is then pointed at a solar cell receiver.
• This mechanism is generally known as "power beaming“.
CURRENT
CURRENT
LASER
TRANSFORMER
OPTICAL FIBRE

12. • Power transmission via radio waves can be made more
directional, allowing :
 longer distance power beaming, with shorter wavelengths
of electromagnetic radiation.
 A Rectenna may be used to convert the microwave energy
back into electricity.
 Rectenna conversion efficiencies exceeding 95% have been
realized.

13.  Wave Coupling extends the Principle of
Electromagnetic Induction.
 Power beaming using microwaves has been proposed
for the transmission of energy from orbiting solar
power satellites to Earth
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Image Reference: Microwave Power Transmission:
http://large.stanford.edu/courses/2010/ph240/ma1/images/f2big.gif

14.  Near field energy transfer
 Electric Automobile charging
 Consumer Electronics
 Industrial Purposes
 Far field energy transfer
 Energy to remote areas
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15.  Efficient
 Easy
 Need for grids, substations etc. are eliminated
 Low maintenance cost
 More effective when the transmitting and receiving
points are along a line-of-sight
 Can reach the places which are remote
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16.  When microwaves are used, interference may arise.
 When LASERs are used there is a lot of absorption
loss.
 Its radioactive in nature.
 Distance constraint: initial cost is high.
 Field strength has to be under safety levels.
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17.  Transmission without wires will become a reality.
 Efficient.
 Low maintenance cost.
 Better than conventional wired transfer.
 Energy charges can be decreased.
 Low loss.
 In near future, world will be completely wireless.
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18.  Wireless Power Transmission- Wikipedia
https://en.wikipedia.org/wiki/Wireless_power_transfer
 WiTricity- Wikipedia
https://en.wikipedia.org/wiki/WiTricity
 Feasibility of Wireless Power Transmission : Biswa, Rajen
http://www.academia.edu/1561057/Feasibility_of_Wireless_P
ower_Transmission
• Wireless Power-Robokid249
http://www.instructables.com/id/Wireless-Power-
Transmission-Over-Short-Distances-U/3/14/2016 18Wireless Power Transmission