WIRELESS POWER TRANSMISSION

SEMINAR REPORT

Submitted in Partial Fulfilment of the Requirements for the award of Diploma

in Electronics Engineering under the Department of Technical Education,
Government of Kerala

By

ASHITH S (19041171)

DEPARTMENT OF ELECTRONICS ENGINEERING

M.V.G.M. GOVERNMENT POLYTECHNIC COLLEGE

VENNIKULAM, PATHANAMTHITTA 689544

2021

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 DEPARTMENT OF ELECTRONICS ENGINEERING

M.V.G.M. GOVERNMENT POLYTECHNIC COLLEGE

VENNIKULAM, PATHANAMTHITTA

Certificate

This is to certify that Seminar Report entitled WIRELESS POWER

TRANSMISSION is submitted by ASHITH S (19041171) during the
academic year 2019- 2022 under our guidance and supervision towards the
partial fulfilment of the requirements for the award of Diploma in Electronics
Engineering under the Department of Technical Education, Government of
Kerala
Guided by Head of the
Department
Mr. SUSAMMA MATHEW
Mr.Devakumar.N
Dept.of Electronics Engineering
Dept.of Electronics Engineering

Seminar Coordinator Principal

Mrs.Mahima Mohan Mr.Biju George

Dept.of Electronics Engineering

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 ACKNOWLEDGEMENT

I would like to thank respected Mr. Devakumar N (Head of the department)

and Mr.Biju George Principal of G.P.C Vennikulam, for providing all the
technical facilities in the college and I would like to express our sincere thanks
and gratitude to seminar coordinator Mrs.Mahima Mohan, Lecturer in
Department of Electronics Engineering. This would not have been possible
without the guidance of my Guide Mrs. SUSAMMA MATHEW Department
of Electronics Engineering, who provided the vision, encouragement and
necessary advice to us during the whole time. I am extremely thankful for her
valuable guidance and suggestions in this period. I would like to thank our
parents who patiently helped us as i went through my work and helped to
modify and eliminate some of the irrelevant or un-necessary stuffs. I would
like to thank our friends who helped us to make our work more organized and
well stacked till the end.

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Abstract

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 Table of Content

1.INTRODUCTION OF WPT………………………
2.NEED OF WPT………………………………………
3.HISTORY OF WPT…………………………………
4.VERITIES OF WPT…………………………………
5.ADVANTAGE…………………………………………
6.DISADVANTAGE ………………………………….
7.APPLICATION ……………………………………
8.FUTURE SCOPE…………………………………
9.REFERENCE…………………………………….

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 INTRODUCTION OF WPT

EFFICIENT TRANSMISSION OF ELECTRIC POWER

FROM ONE POINT TO ANOTHER THROUGH
VACUUM OR AN ATMOSPHERE WITHOUT THE USE
OF WIRE OR ANY OTHER SUBSTANCEWPT CAN
TRANSPORT POWER TO LOCATION, WHICH ARE
OTHERWISE NOT POSSIBLE OR IMPRACTICAL TO
REACH.

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 NEED OF WPT

• RELIABLE
• ENVIRONMENTALLY SOUND
• EFFICIENT
• LOW MAINTENANCE COST
• CAN BE USE FOR SHORT RANGE OR LONG RANG

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 HISTORY OF WPT
IN 1897 NIKOLA TESLA PIONEER OF INDUCTION TECHNIQUE,
HAD A VISION FOR "WORD WIRELES SYSTEM“.A187
FEET TALL TOWER WAS BUILT TO BROADCAST ENERGY.SO
THAT ALL PEOPLE CAN HAVE ACCESS TO FREE ENERGY.HE
MANAGED TO LIGHT 200 LAMPS FROM A DISTANCE OF 40
KM

FIG 1:- NIKOLA TESLA

FIG 2:-TESLA TOWER

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VARIETIES OF WPT

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 VARIETIES OF WPT INDUCTIVE COUPLING
PRIMARY AND SECONDARY COIL ARE NOT CONNECTED WITH WIRES.ENERGY
TRANSFER IS DUE TO MUTUAL INDUCTION. EXAMPLE: TRANSFORMER,
WIRELESS CHARGING PAD, ELECTRIC BRUSHES. ON A WIRELESS CHARGING
PAD, THE DEVICE ARE TO BE KEPT, BATTERY WILL BE AUTOMATICALLY
CHARGED. THE CHARGING PAD (PRIMARY COIL) AND THE DEVICE (SECONDARY
COIL) HAVE TO BE KEPT VERY NEAR TO EACH OTHER. IT IS PREFERRED BECAUSE
IT IS COMFORTABLE.LESS USE OF WIRE.

FIG 3- INDUCTIVE COUPLING

RESONANT INDUCTIVE COUPLING (RIC)

• COMBINATION OF INDUCTIVE COUPLING AND RESONANCE.
• RESONANCE MAKES TWO OBJECTS INTERACT VERY STRONGLY.
• MUTUAL INDUCTANCE INDUCE CURRENT.

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FIG 4 – RESONANCE INDUCTIVE

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ADVANTAGES OF NEAR–FIELD TECHNIQUE

• NO WIRE.
• NO E-WASTE.
• EFFICIENT ENERGY TRANSFER USING RIC (REMOTE
INTELLIGENT COMMUNICATION)
• MAINTENANCE COST IS LESS

DISADVANTAGES OF NEAR-FIELD
TECHNIQUE

• DISTANCE CONSTRAINT
• FIELD STRENGTH HAVE TO BE UNDER SAFETY LEVELS.
• INITIAL COST IS HIGH

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FAR – FIELD ENERGY TRANSFER
• IT AIMS AT HIGH POWER TRANSFER.
• IT CAN BE A LASER OR MICROWAVE TRANSMISSION.
• IT NEEDS LINE OF SIGHT.
• IT IS RADIATIVE IN NATURE.

MICRO POWER TRANSMISSION (MPT)

TRANSFER HIGH POWER FROM ONE PLACE TO ANOTHER. TWO

PLACES BEING IN LINE OF SIGHT USUALLY.A COMPLETE MPT SYSTEM
CONSIST OF THREE ESSENTIAL PART.ELECTRICAL POWER TO
MICROWAVE POWER CONVERSION.ABSORPTION ANTENNA THAT
CAPTURES THE WAVE.RECONVERSION TO ELECTRICAL POWER.

FIG 5- MICROWAVE TRANSMITTER AND RECTENNA

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MICRO POWER TRANSMISSION (MPT)

AF CANNOT BE DIRECTLY CONVERTED TO

MICROWAVE ENERGY. AC IS CONVERTED TO DC
FIRST.DC IS CONVERTED TO MICROWAVE USING
MAGNETRON.TRANSMITTED WAVE ARE RECEIVED AT RECTENNA
WHICH RECTIFIES, GIVES DC AS THE OUTPUT.DC IS CONVERTED BACK
TO AC

LASER TRANSMISSION
LASER IS HIGHLY DIRECTIONAL, COHERENT.BUT, GET ATTENUATED
WHEN IT PROPAGATES THROUGH ATMOSPHERE.
SIMPLE RECEIVER: PHOTOVOLTAIC CELL.
COST - EFFICIENT

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ADVANTAGES OF FAR-FIELD TECHNIQUES

• EFFICIENT.

• EASY.

• NEED FOR GRIDS, SUBSTATION ETC ARE ELIMINATED.

• LOW MAINTENANCE COST.

• MORE EFFECTIVE WHEN THE TRANSMISSION AND RECEIVING

ARE ALONG A LINE OF SIGHT.

• CAN REACH THE PLACES WHICH ARE REMOTE.

DISADVANTAGES OF FAR-FIELD
TECHNIQUES

• RADIATIVE
• NEED LINE OF SIGHT.
• INITIAL COST IS HIGH
• WHEN MICROWAVE ARE USED: INTERFERENCE MAY ARISE.
• WHEN LASER ARE USED
• CONVERSION IS INEFFICIENT.
• ABSORPTION LOSS IS HIGH

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 APPLICATION

• NEAR-FIELD ENERGY TRANSFER.

➢ ELECTRIC AUTOMOBILE CHARGING.
➢ CONSUMER ELECTRONICS
➢ INDUSTRIAL PURPOSES

• FAR-FIELD ENERGY TRANSFER.

➢ SOLAR POWER SATELLITES.
➢ ENERGY TO REMOTE AREAS.
➢ CAN BROADCAST ENERGY GLOBALLY

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 FUTURE SCOPE

• IN FUTURE TRANSMISSION WILL BE WITHOUT WIRES.

• IT WOULD BE MORE EFFICIENT.
• LOW MAINTENANCE COST BUT HIGH INITIAL COST.
• BETTER THAN CONVENTIONAL WIRED TRANSFER.
• ENERGY CRISIS CAN BE DECREASED.
• LOW POWER LOSS.
• IN NEAR FUTURE, WORLD WILL BE COMPLETELY
WIRELESS.

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References

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