wireless transmission of electricity

WIRELESS TRANSMISSION

OF ELECTRICITYPRESENTED BY : ABHISHEK JAISWAL

B-TECH ECE

PRIST UNIVERSITY

EMAIL ID : [email protected]

INTRODUCTION Wireless electrical transmission as the

name shows is the transmission of electrical energy without wires to any place on the earth .

SYSTEM LOSSES OF ELECTRICITY TRANSMISSION

HISTORY

NICOLA TESLA invented radio and shown us he is indeed “ THE FATHER OF WIRELESS “.

In 1964 WILLIAM C. BROWN demonstrated a rectenna which could convert microwave power to electricity .

THE TECHNOLOGY AVAILABLE

INDUCTIVE COUPLING• Very short distance transmission.

RESONANT INDUCTIVE COUPLING• Moderate distance transmission.

MICROWAVE ELECTRICITY TRANSMISSION• Long distance transmission.

INDUCTION COUPLING Here transfer of energy takes place

by electromagnetic coupling through a process called mutual induction .

This method works only when receiver is in close proximity to the transmitter .

APPLICATIONS :-Wi-power technology . Electric toothbrush. Electromagnetic card reader.

RESONANT INDUCTIVE COUPLING RIC function on the concept that if

you make two resonant objects of same resonant frequency tends to exchange energy efficiently , while interacting with extraneous off resonant objects .

Transmission range for this method is nearly 5-10 meters .

MICROWAVE POWER TRANSMISSION (MPT) Microwave transmission refers to the

technology of transmitting information or power by the use of microwaves waves .

MPT SYSTEM DESIGN MICROWAVE GENERATOR TRANSMITTER ANTENNA RECTENNA

BLOCK DIAGRAM OF MPT

MERITS AND DEMERITS OF WIRELESS TECHNOLOGY MERITS : High efficiency Low cost high transmission integrity less power loss areas where needs of electric

and no method of delivering

DEMERITS :- Economic impact the concept looks costly initially .

BIOLOGICAL IMPACT :- Calculating the circulating relative power , it was found that the frequency is small and such a frequency is very biological compatible .

APPLICATION OF WPT Generating power by placing satellites

with giant solar array in geo synchronous earth orbit and transmitting the power as microwaves to the earth known as solar power satellites (SPS) .

Moving targets such as fuel free airplanes, fuel free electric vehicles , moving robots and fuel free rockets .

SPS A SPS (solar power station/satellite ) is

a gigantic satellite design as an electric power plant and transmits the electricity via microwave to a receiving site on the earth by using phased array antennas .

FEATURES OF SPS Pollution free power plant . Power at any time of the day and

night. Power regardless of the weather .

CONCLUSION The transmission of power without

wires is not a theory or a mere possibility , it is now reality.

The electrical energy can be economically transmitted without wires to any terrestrial distance .

Wireless transmission of electricity have tremendous merits like high transmission integrity and low loss .

QUERY ?

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