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  MALAVIYA NATIONAL INSTITUTE OF

TECHNOLOGY, JAIPUR

A SEMINAR REPORT

ON

“WIRELESS POWER TRANSMISSION (WITRICITY)”

Submitted in patia! "u!#!!ment $" t%e e&uiement' "$ t%e a(ad $"

)e*ee $" +a%e!$ $" Te%n$!$*- .+/Te%0 in E!etia! en*ineein*

SU+MITTE) +Y1 2 SUPERVISE) +Y

2

)/

3453UEE5678

SU+MITTE) TO1 2

)EPT/ OF ELECTRICAL ENGINEERING

MNIT JAIPUR

Futue (it% (ie!e'' p$(e tan'mi''i$n

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C$ntent 

Pa*e n$/

1. Candidate declaration . A!"tract ##. Ac$no%led&'ent . Introdction **. W+at i" %itricit,- /. Princi0le !e+ind %itricit,. . MIT2" e30eri'ent". 14. 5e"i&n de"cri0tion". 11

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6. Re"lt". 1*  6. I" %itricit, a ne% conce0t- 1  14. 7o% "a8e i" %itricit,- 16  11. 9tre o8 %itricit,. 4  1. Re8erence". 1

Pa&e: 1

Candidate 5eclaration

I +ere!, certi8, t+at t+e %or$ 0re"ented in t+e "e'inar titled;9ie!e'' P$(e Tan'mi''i$n .9ITRICITY02 i" in 0artial8lac+elor o8 Tec+nolo&, and "!'itted in 5e0art'ent o8Electrical En&ineerin& o8 National In"titte o8 Tec+nolo&,?ai0r@ nder t+e "0eri"ion o8 5r. B+alee=r Re+'an Niai@Pro8e""or@ 5e0art'ent o8 Electrical En&ineerin&@ Malai,aNational In"titte o8 Tec+nolo&, ?ai0r.

  Rite'% 

(41DEE1#) 

T+i" i" +ere!, a00roed 8or t+e "!'i""ion.

5ATE: 9e!rar, 41/

)/ :%a!ee&u Re%man Nia;i

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0eri"or

 

Pa&e:

A+STRACT

Or 8ore8at+er" 'areled at t+e inention o8 &lo%in& li&+

!l!" !, T+o'a" Edi"on in 16. 7o%eer@ to " 1"

centrion"@ t+e li&+t !l! i" not+in& ot o8 t+e ordinar,. W+e

co'0ter"@ cell 0+one"@ la0to0"@ iPod"@ etc. %ere inented o

antenna" t%ea$ed. No% t+i" i" %+at ,o call inention

7o%eer@ a" ti'eF" 0ro&re""in& %e are &ettin& "ed to t+e"

deice". In 8act@ c+ar&in& all t+e"e a00liance" +a" !eco'e "

er, c'!er"o'e Eac+ a00liance +a" it" o%n "et o8 c+ar&er

and %it+ eer, 8a'il, 'e'!er o%nin& t+eir cell 0+one"@ t+

dra%er" are oerGo%in& %it+ all "ort" o8 %ire". 7o% 'an

ti'e" +ae ,o %i"+ed i8 t+ere cold !e "o'e %a, to do a%a%it+ all t+e %ir, ltter- W+en ,o are on t+e %a, to %or$ an

,or cell 0+one !ee0" in +n&er 8or a !atter, c+ar&e@ +aen

,o %i"+ed 8or ,or cell 0+one !atter, to &et F"el8 c+ar&ed

Well ,or 0li&+t +a" !een +eard !, doctor FWiTricit,F.

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  Pa&e: #

ACBNOWLE5HEMENT

I e30re"" ', "incere &ratitde to ', concerned teac+er an

&ide )/ :%a!ee&u Re%man Nia;i@ Pro8e""or@ 5e0art'en

o8 Electrical En&ineerin&@ 8or +i" ala!le and in"0irin

&idance to%ard" t+e 0ro&re"" on t+e to0ic ;9IRELES

ELECTRICITY $ 9iTiit-2 and 0roidin& ala!

in8or'ation 8or t+e deelo0'ent o8 ', re0ort.

La"t !t not t+e lea"t I e30re"" ', "incere and +eart, t+an$

to all t+o"e %+o +ae directl, or indirectl, +el0ed 'e i

co'0letin& t+i" "e'inar 0re"entation and re0ort "cce""8ll,

5ATE: 9e!rar, 41/

Rite'%

 (41DEE1#)

Pa&e:

INTRO5DCTION

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Toda, %e do lie in t+e “%irele"" a&e”@ in %+ic+ t+e air t+a%e !reat+e 0ro!a!l, contain" 'ore in8or'ation t+an o3,&en7o%eer@ t+i" i" al"o an a&e %+ere 'o!ile 0+one"@ MP0la,er"@ la0to0 co'0ter" and do'e"tic ro!ot" e3ialon&"ide old8a"+ioned 0o%er %ire" and !l$, !atterieDnli$e in8or'ation@ electrical ener&, i" "till 0+,"icall, con

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c+ar&e re"onance"@ "ocalled Sc+'ann re"onance"). T+e0ito'e o8 Te"la2" eort" to ac+iee +i" &oal %aWardencl,e To%er@ a * ' +i&+ "trctre in Lon& I"land t+a%a" 'eant to delier electricit, to t+e entire 0lanet. T+con"trction %a" interr0ted in a!ot 164*@ not !eca"e t+'et+od %a" con"idered i'0ractical or dan&ero"@ !!eca"e t+e 8nder@ t+e 8a'ed

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9i&re1: Po""i!le 8tre %it+ %irele"" 0o%er tran"'i""ion

WiTricit, i" not+in& !t %irele"" electricit,. Tran"'i""ion o

electrical ener&, 8ro' one o!Ject to anot+er %it+ot t+e "

o8 %ire" i" called a" WiTricit,. WiTricit, %ill en"re t+at t+

cell 0+one"@ la0to0"@ iPod" and ot+er 0o%er +n&r, deice

&et c+ar&ed on t+eir o%n@ eli'inatin& t+e need o8 0l&&in

t+e' in. Een !etter@ !eca"e o8 WiTricit, "o'e o8 t+

deice" %onFt re=ire !atterie" to o0erate.

Pa&e:

9%at=' t%e Pinip!e be%ind9iTiit-<

WiTricit, Wirele"" Electricit,@ t+e"e %ord" are "i'0ler "ai

t+an done. T+e conce0t !e+ind t+i" 8a"cinatin& ter' i" a littl

co'0le3. 7o%eer@ i8 ,o %ant to nder"tand it@ tr, an

0ictre %+at I "tate in t+e ne3t 8e% line". Con"ider t%o "e

re"onatin& co00er coil" o8 "a'e re"onatin& 8re=enc, %it+

dia'eter 4 inc+e" eac+. One co00er %ire i" connected to t+

0o%er "orce WiTricit, tran"'itter)@ %+ile t+e ot+er co00e

%ire i" connected to t+e deice (WiTricit, Receier).

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T+e electric 0o%er 8ro' t+e 0o%er "orce ca"e" t+e co00e

coil connected to it to "tart o"cillatin& at a 0articlar (M7

8re=enc,. S!"e=entl,@ t+e "0ace arond t+e co00er co

&et"

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Pro8. Marin "olJacic 8ro' Ma""ac+"ett" In"titte o8 Tec+nolo&

(MIT)@ i" t+e one %+o +a" 0roed t+at 'a&netic co0le

re"onance can !e tilied in order to tran"8er ener&, %it+o

%ire". W+atF" een 'ore intere"tin& i" +o% +e ca'e a!o

t+i" idea. SolJacic@ J"t li$e an, o8 " %a" 8ed 0 o8 +i" Flo

!atter,F !ee0in& cell 0+one and %ondered J"t li$e an, o8 "

t+ere %a" a %a, to &et rid o8 t+i" Fc+ar&in& 0ro!le'

7o%eer@ +ere i" %+ere t+e dierence !et%een SolJacic an

an, o8 " co'e" in. 7e didnFt J"t "tand t+ere %onderin&

in"tead +e tried to

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In 44@ Marin SolJacic led a

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Q A&ilent ##4A 9nction &enerator.

Q Microc+i0 * d> R9 0o%er a'0li

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0+,"ical 0ara'eter" o8 coil. Seeral iteration" o8 coil" "i

%ere te"ted. T+e %irele"" 0o%er receier %a" de"i&ned t

ill'inate a "'all li&+t !l!. T+e +i&+ 8re=encie" 0rodce

!, t+e %irele"" 0o%er tran"'itter %ere 'ea"red to en"r

t+at t+e, %ere contained. Since t+i" i" a 0roo8 o8 conce0

de"i&n@ t+e 8oc" %a" on ecienc,@ 0racticalit,@ and "a8et,T+e deice %a" a!le to 0roide a "e8l a'ont o8 0o%er o

t+e receiin& coil. T+e ","te' %a" not 0ractical eno&+ t

i'0le'ent in co''on +o"e+old and co''ercial electron

deice" de to it" lar&e "ie. Wirele"" 0o%er tran"'itter an

receier "ed /4 c' coil" a" t+e +elical coil" 8or tran"'ittin

0o%er. T+e /4 c' coil" ac+ieed t+e &oal o8 +ain& re"onant 8re=enc, o8 a00ro3i'atel, 14 M7.

Pa&e: 1

 T+e di"tance t+at 0o%er cold !e tran"'itted %a" 1. '

%it+ an aera&e ecienc, o8 a00ro3 4. An A&ilent ##4

8nction &enerator %a" i'0le'ented a" an o"cillator %it+

8re=enc, ran&in& !et%een 6.6 and 1. M7 8or t+e /4 c'

coil. T+e 8nction &enerator i" connected to t+e tran"'ittin

coil. A "ine %ae i" &enerated and tran"'it" 0o%er o8

di"tance 1. ' to t+e receiin& coil %+ic+ t+e load

attac+ed to.Tran"'ittin& "i&nal" oer a di"tance re=ire" t+at t+

tran"'i""ion !ea' +ae a +i&+ de&ree o8 directionalit, and

lar&e &ain re=irin& a lar&er "ie coil. 9or 0r0o"e" o8 t+e 8a

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Pa&e: 1#

9or t+i" a00lication t%o +elical coil" %ere "ed. In order till'inate a 4.1 W li&+t !l!@ t+e 8re=enc, '"t !e $e0+i&+ (14 M7). To ac+iee t+i"@ t+e dia'eter o8 t+e +elicacoil" %a" /4 c'. T+e +elical coil" '"t +ae t+e "a're"onant 8re=enc, in order to ac+iee indctie co0lin&T+e 0r0o"e o8 "in& a +elical coil i" to &et +i&+er &at+ro&+ !etter directionalit, and lon&er %aelen&t+ %+ic

allo%" t+e "i&nal to trael 8art+er.

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Re"lt: Plot" o8 1r@ 1r@ 1r#  %ere inclded 8or a co'0ari"o

!et%een "tandard electro'a&netic

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Pa&e: 1*

T+e re"lt" are o!tained drin& e30eri'ent %+ic+ i" a" 8ollo%

Mea"rin& t+e electric

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Pa&e: 1/

Fi*ue1 Relatie 'a&nitde o8 electric

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No@ t+i" conce0t o8 %irele"" electricit, i" not ne%. In 8act

date" !ac$ to t+e 16t+ centr,@ %+en Ni$ola Te"la "e

condction !a"ed ","te'" in"tead o8 re"onance 'a&net

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  It i" o8ten "aid Fnece""it, i" t+e !e"t teac+erF and can !

a00lied in t+i" ca"e a" %ell. Onl, in t+i" centr,@ +a" t+e nee

8or %irele"" electricit, e'er&ed "o ra0idl,@ "0ear+eaded !

t+e a&on, ca"ed !, t+e c'!er"o'e c+ar&in& o8 endle"

deice". Earlier 0eo0le didnFt need it@ "o t+e, didnFt t+in

a!ot it.

H$( 'a"e i' 9iTiit-<

7'an !ein&" or ot+er o!Ject" 0laced !et%een t+

tran"'itter and receier do not +inder t+e tran"'i""ion o

0o%er. 7o%eer@ doe" 'a&netic co0lin& or re"onanc

co0lin& +ae an, +ar'8l eect" on +'an"- MIT

re"earc+er" are =ite con

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MITF" WiTricit, i" onl, 4 to * ecient and accordin& t

Solace@ t+e, +ae to !e t%ice a" ecient to co'0ete %it+ t+

traditional c+e'ical !atterie". T+e tea'F" ne3t ai' i" to &et

ro!otic ac' or a la0to0 %or$in&@ c+ar&in& deice" 0lace

an,%+ere in t+e roo' and een ro!ot" on 8actor, Goor". T+

re"earc+er" are al"o crrentl, %or$in& on t+e +ealt+ i""e

related to t+i" conce0t and +ae "aid t+at in anot+er t+ree t

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1644

#M. Lan&er@ “Wirele"" Po%er V “Sen"itie” Ro!ot"”@ Or&aniation We!"ite@ Cited 1

Se0te'!er 44@ Aaila!le 7TTP:

+tt0:ne%".,a+oo.co'"a804441t"a80"itinternetener&,c+i0co'0an,intel

Tracking Advances in VCO Technology @ Ma3i' Microc+i0 Cor0.@ A00l. 1/@ 00 1#. 

*A. >acon@ XiaSat Coil En&ineer. Per"onal Interie%. 6 A&"t 44.

/9CC Standardre&lation: Aaila!le 7TTP:

+tt0:%%%.8cc.&ooetin8orle"0art1*0art1*644.0d8

At+or n$no%n. (44@ ?ne). Electro'a&netic 9ield" and P!lic 7ealt+. WHO Fact 

Sheet online doc'ent. No #. Aaila!le 7TTP:

+tt0:%%%.%+o.int'ediacentre8act"+eet"8"#eninde3.+t'l

A. Bri" et al.@ UWirele"" Po%er Tran"8er ia Stron&l, Co0led Ma&netic Re"onance"@U

 ?ornal Science@ ol. #1@ 00 #*@ ?l, 44

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