International Journal of Electrical, Electronics and Data Communication, ISSN: 2320-2084
Volume-2, Issue-5, May-2014
WIRELESS POWER TRANSFER
1
ABHIJEET ORKE, 2ARVIND RATHOD, 3MONALI WAGHMARE, 4VISHAKHA SAHANE, 5PRAVIN
SAGORIYA
1,2,3,4,5
Dr. Babasaheb Ambedkar College of Engineering & Research Department of Electrical Engineering Nagpur University
E-mail: abhi.orke@gmail.com, arvindrathod@gmail.com, mon2waghmare@gmail.com, sahanevishakha@yahoo.in, pravinsagoriya@gmail.com
Abstract- In this paper, the concept of wireless power is explained using the model. Its future applications include powering
and charging certain devices in homes, offices etc. Many past works have discussed some methods for improving the efficiency
of the system. However, controlled power distribution is also necessary for the receiver to absorb power. This model can
explain and make the wireless transfer of power possible for industrial as well as domestic applications. In this paper the
magnetic concept is used to transfer power from transmitter coil to the receiver coil using high voltage supply.
Keywords- Magnetic coupled coil, EHV Transformer, Resonance, Tesla Coil, Air core inductor coil.
I. INTRODUCTION
An ideal way to transfer wireless power is to prevent
the magnetic lines of forces which is lost during
process. However, magnetic coupling method seems
to work at a fixed distance.
When the receiver is moved away from its fixed place
its efficiency seems to decrease because the magnetic
field works on some limited distance.
In this work we proposed the use of high voltage and
the concentrated windings can actually increase the
range of magnetic field which can later be captured by
the receiver coil.
II. BLOCK DIAGRAM
The AC 230 V, 50 Hz supply is given to the step-down
transformer. The step-down transformer step-downs
the voltage to 12 V. This 12 V step-down voltage is
given to the rectifier circuit. Rectifier circuit rectifies
12 V AC input into rectified 12 V DC. The DC input
given to series regulator where the high voltage is
generated.
i. High Voltage Logic Diagram
This high voltage logic consist of with the switching
generates high voltage output. This high voltage
generated is in the range of 12 kV to 15 kV.
This high voltage generated is now given to the
transmitter coil which is an air core inductor coil
where the magnetic field is generated.
It is then received by the receiver side of air core coil
by the means of mutual induction.
ii. High Voltage Kit
In our study for providing high voltage to the
transmitter coil which will transfer the power to the
receiver coil, we have use high voltage kit. To the
input of this kit at input is given through the bridge
rectifier and the output is taken from flyback
The wireless transfer of power using magnetic field is
done and it is given to the load.
Wireless Power Transfer
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International Journal of Electrical, Electronics and Data Communication, ISSN: 2320-2084
Volume-2, Issue-5, May-2014
transformer. The output voltage is in the range of 12
kV to 15 kV.
III. PCB DESIGN
The four diodes labelled as D1, D2, D3, D4 are
connected as series pairs with two diodes operating in
each half cycles. During positive half cycle diode D2
and D3 conducts while D1 and D4 are reverse biased
and the current flows through the load while in
negative half cycle diode D1 and D4 conducts and D2
and D3 are reverse biased, the current flows through
the load in same direction. The capacitor here is used
to convert the full wave rippled output of a rectifier
into a smooth DC output voltage.
iv. Transmitter Coil
v. Receiver Coil
Diode Bridge Rectifier
vi. Two Inductively Coupled Coil
Primary coil is powered with high frequency AC and it
is brought within the range of secondary coil the
oscillating magnetic field is induced AC flow in
secondary coil . Now the AC flow in secondary coil is
converted to DC or AC at needed amount of voltage to
power a device or a load.
iii. Rectifier Circuit
IV. TRANSMITTER AND RECIEVER COIL
Transmitter and receiver coils are the air core inductor
coils which are used to transfer the power over a
specified distance. The power transfer is done by the
means of mutual induction. The magnetic coupling is
specified for some fixed distance. This distance
depends upon magnetic field of the coil received by a
air core receiver coil. Greater the magnetic field
greater the distance over which the power is
transferred.
vii. Primary and Secondary Coil
Wireless Power Transfer
74
International Journal of Electrical, Electronics and Data Communication, ISSN: 2320-2084
Volume-2, Issue-5, May-2014
V. LOAD
FUTURE SCOPE
The power transferred to the receiver coil is regulated
and then given to the load. DC loads can be used as
load by using bridge rectifier. And the AC load can be
used as load by using inverter circuit.
As per the future, the model can also be modified with
multi receiver system to increase the consumption at
the receiver side. The number of resonance receivers
also develop greater magnetic field which is then
given to the load. It holds the great potential to power
big machinery like powering motors and charging
electric cars by eliminating the cables used for
powering or charging.
VI. ADVANTAGES
Wireless Power Transmission system has more
freedom of choice of both receiver and transmitters.
Even mobile transmitters and receivers can be chosen
for the wireless power transfer system. The power
could be transmitted to the places where the wired
transmission is not possible. Loss of transmission is
negligible level in the Wireless Power Transmission;
therefore, the efficiency of this method is very much
higher than the wired transmission. The cost of
transmission and distribution become less. Cost of
electrical energy for the consumer also would be
reduced.
REFERENCE
[1]
Shu - Hui Cheng and David Chavez, “Wireless Power
Transfer,”
[2]
N. Tesla, “Apparatus for transmission of electrical energy,”
U.S. Patent 649,621, dated May 15, 1900
[3]
Jos´e Oscar Mur-Miranda, Giulia Fanti, Yifei Feng,
Keerthik Omanakuttan, Roydan Ongie, Albert Setjoadi and
Natalie Sharpe “Wireless Power Transfer Using Weakly
Coupled Magnetostatic Resonators” Franklin W.Olin College
of Engineering, Needham, Massachusetts 02492
[4]
International Journal of Computer
Engineering, Vol.4, No.2, April 2012.
[5]
“Micro-Robot for Endoscope Based on Wireless Power
Transfer” Proceedings of the 2007 IEEE International
Conference on Mechatronics and Automation August 5 - 8,
2007, Harbin, China.
[6]
“Design of an Integrated Wireless Power Transfer System
with High Power Transfer Efficiency and Compact Structure”
6th European Conference on Antennas and Propagation
(EUCAP).
[7]
Young-Sik Seo, Zachariah Hughes, Matt Hoang, Deena
Isom, Minh Nguyen, Smitha Rao, and J.-C. Chiao
“Investigation of Wireless Power Transfer in Through-wall
Applications” The University of Texas at Arlington,
*Med-Worx, USA.
[8]
K. E. Koh, T. C. Beh, T. Imura, and Y. Hori “Multi-receiver
and Repeater Wireless PowerTransfer via Magnetic Resonance
Coupling –Impedance Matching and Power Division Utilizing
Impedance Inverter” Department of Electrical Engineering,
The University of Tokyo, Japan. Department of Advance
Energy, The University of Tokyo, Japan.
VII. DISADVANTAGES
It has complex circuitry therefore proven to be difficult
to implement and is not efficient over a long distance.
CONCLUSION
In this work, we proposed and investigated through
wireless power transfer system which has made this
possible by inductive coupling. It can power certain
devices and can also be used to transfer power from
solar panels and also other household applications
such as lighting and sensing.
The output through the receivers can be modified
using capacitor and developing resonance. Also
wireless power transfer using energy saving lamp also
saves most of the power.
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Wireless Power Transfer
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and
Electrical