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8/2/2019 Final Witricity EDITED
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Its all about clean
energy
technologies
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The transmission of power without wires for electricity transmission.
Any system where electromagnetic energy is transmitted from a power
source (such as a Tesla coil) to an electrical load, without interconnecting
wires.
Wireless transmission is employed in cases where interconnecting wires are
inconvenient, hazardous, or impossible.
There is a distinction from electromagnetic transmission for the purpose of
transferring information (radio), where the amount of power transmitted is
only important when it affects the integrity of the signal.
INTRODUCTION
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History of Wireless Power
In 1899, Sir Nikola Tesla Proposeda method of Wireless PowerTransmission.
As it is in Radiative mode, most of
the Power was wasted and has less
efficiency.
The efficient midrange power transfer
concept is Witricity. In this model source
and load are in Magnetic resonance so
there is no power loss.
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WET has been around since about
1856 in the form of mutual induction.
As wireless telecommunications
technologies were being developed
during the early 1900s.
At the St. Louis World's Fair (1904), a
prize was offered for a successful
attempt to drive an 0.1 Horsepower air-
ship motor by energy transmitted
through space at a distance of least 100
feet. The Electrician (London),
September 1902.
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BasicPrinciple
The basic principle involved in Witricity concept is, Two
objects having same resonating frequency and in Magnetic
resonance at Strongly coupled regime tend to exchange energy ,
while dissipating relatively little energy to the extraneous off-
resonant objects.
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basics
electricity
magnetism
Energycoupling
Magneticinduction
Electro
magnetism
Resonant
magnetic
coupling
resonance
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Electromagnetic induction.
Electromagnetic radiation.
Evanescent wave coupling.
Break down of Evanescent wave coupling.
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Resonant work coil (receiver)
40 Watts Bulb(load)
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WORKINGIt is divided into three parts:
PART I
Based on Faradays theory when coil is in magnetic field current is found in thecoil via External coil & Internal coil.
External unitIncreasing frequency power generator n/w supply 100 watts of power
& drive current through primary coil.
Capacitor is used for impedence matching for transfering maximum
power
Internal unit It includes energy coupling antenna, resonant ckt, rectifier ckt andload
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Through External unit energy is transmitted
and received by receiving coil both at
resonance.
OUTPUT CURRENT EQUQTION:
When n=120r=0.004mf=2106MHzN5R0.2m
W0.05mD0.04m
It is calculated that Ip =3.7A.
This is the minimum current required at the o/p.
PART II
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PART III
This tank ckt (Colpitts oscillator) is variable
frequency oscillator which produces sinosoidal o/p
voltage.
220Vbridge
rectifier
Colpitts
oscillator &
current
limiting ckt
IGBT
Impedence
matching
n/w
Resonant
working
coil Tx
Rx work coilLoad
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Technology BenefitWiTricity's Technology
High Efficiency Over DistanceHighly Resonant StrongCoupling
Penetrates and Wraps-Around
Obstacles
Energy Transfer via Magnetic
Near Field
Safe for People, Animals andother environmental object
Non-Radiative Energy
From Milliwatts to KilowattsScalable Design
Devices That Can Fit Into OEM(original equipment
manufactures)Products
Flexible Geometry
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Automatic wireless charging of mobile electronics in home, car,office,...while devices are in use and mobile.
Direct wireless powering of stationary deviceseliminating
expensive custom wiring, unsightly cables and wall-wart powersupplies.
CONSUMER ELECTRONICS
INDUSTRIAL
Robots, package machinery, assembly machinery, machine tools.
Direct wireless power and communication interconnections at points of usein harsh environments.
Direct wireless power for wireless sensors and actuators, eliminating the
need for expensive power wiring or battery replacement and disposal.
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Direct wireless power interconnections and automatic wirelesscharging for implantable medical devices .
Automatic wireless charging and for high tech military systems.
Direct wireless powering and automatic wireless charging of
smartcards.
Direct wireless powering and automatic wireless chargingofconsumer Appliance, mobile robots, etc.
Transportation
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No need of line of sight.
No need of power cables andbatteries.
Does not interfere with radio waves.
Wastage of power is small .
Negative health implications.
Highly efficient than electromagnetic
induction
Less costly.
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Wireless power transmission can be possible
only in few meters.
Efficiency is only about 40%.
Initial cost is very high..
Asthe frequency is very small and such afrequency is very biologically compatible .
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The transmission of power without wires is not a
theory or a mere possibility, it is now a reality.
The electrical energy can be economicallytransmitted without wires to any terrestrial
distance.
Many researchers have established in numerous
observations, experiments and measurements,
qualitative and quantitative. Dr.N.Tesla is the
pioneer of this invention.
Dr. N.Tesla
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An article published in the Science Magazine as Wireless PowerTransfer via Strongly
Coupled Magnetic Resonances by Andre kurs, Science 317,83(2007); Dol:10.1126/ science.1143254,2007.
Efficient Non-Radiative Midrange Energy Transfer by Aristeidies
karalis, Marlin Soljacic,2006.
IEEE Spectrum, May 2009
www.witricity.com
http://www.WiTricitypower.com
http://www.sciencemag.org/cgi/data/1143254/DC1/1
http://www.sciencemag.org/cgi/content/abstract/1143254
http://www.breakingnewsenglish.com/0706/070613-WiTricity.html
http://www.witricity.com/http://www.witricitypower.com/http://www.sciencemag.org/cgi/data/1143254/DC1/1http://www.sciencemag.org/cgi/content/abstract/1143254http://www.breakingnewsenglish.com/0706/070613-WiTricity.htmlhttp://www.breakingnewsenglish.com/0706/070613-WiTricity.htmlhttp://www.breakingnewsenglish.com/0706/070613-WiTricity.htmlhttp://www.breakingnewsenglish.com/0706/070613-WiTricity.htmlhttp://www.breakingnewsenglish.com/0706/070613-WiTricity.htmlhttp://www.breakingnewsenglish.com/0706/070613-WiTricity.htmlhttp://www.breakingnewsenglish.com/0706/070613-WiTricity.htmlhttp://www.breakingnewsenglish.com/0706/070613-WiTricity.htmlhttp://www.sciencemag.org/cgi/content/abstract/1143254http://www.sciencemag.org/cgi/content/abstract/1143254http://www.sciencemag.org/cgi/data/1143254/DC1/1http://www.sciencemag.org/cgi/data/1143254/DC1/1http://www.sciencemag.org/cgi/data/1143254/DC1/1http://www.sciencemag.org/cgi/data/1143254/DC1/1http://www.sciencemag.org/cgi/data/1143254/DC1/1http://www.sciencemag.org/cgi/data/1143254/DC1/1http://www.sciencemag.org/cgi/data/1143254/DC1/1http://www.witricitypower.com/http://www.witricity.com/http://www.witricity.com/8/2/2019 Final Witricity EDITED
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Submitted By:-
Anurag Burman
Jayant Mukherjee
Kalyani Chourasiya
Shubhangi Agrawal
Swati Singh
Nitesh Prajapati
THANK YOU!
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