hvdcppt-140421105722-phpapp02.pptx

8/18/2019 hvdcppt-140421105722-phpapp02.pptx

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BY:

SAURAVKAURA

be13104086

HVDC TRANSMISSION

SYSTEM



CONTENTS:

• HISTORY.

• INTRODUCTION.

•

WHY PREFERS.• HOW DOES IT WORKS.

• ADVANTAGES/DISADVANTAGES

•

CONCLUSION



Histo!"

• Firstly HVDC b/w Sw!is" #$! G%tl#$!i$ &'().

• I$ N%rt" A*ri+#, t%t#l HVDC

tr#$s*issi%$ +#-#+ity i$ &' w#s&),000 1W.



INTRODUCTION

• HVDC st#$!s 2%r Hi3" V%lt#3 Dir+t Tr#$s*issi%$

• 2%r l%$3 !ist#$+ tr#$s*issi%$.

• r45irs +%$6rtr st#ti%$s #t #+" $! %2 t"li$.

• +#$ i$tr+%$$+t !i7 -%wr syst*s8 i. (0 H9#$! :0 H9;



HVAC

ADVANTA#ES

• V%lt#3 tr#$s2%r*#ti%$.

•

E#sy +%$6rsi%$ i$t% *+"#$i+#l.$r3y #$! 6i+ 6rs#.

$IMITATIONS

• L%$3 !ist#$+ tr#$s*issi%$

• Di<+5lt t% 5s +#bls, #lr#!y #t &00

=* "i3" r#+ti6 -%wr +%$s5*-ti%$



NEEDS OF HVDC

T" l%sss w"i+" %++5rs i$ t" syst*s#r #t #ll t" st#3s

i.. , #t 3$r#ti%$ , tr#$s*issi%$ >!istrib5ti%$ l6l.

T" l%sss #t tr#$s*issi%$ l6l +#$ b3r#tly r!5+! by HVDC tr#$s*issi%$.



%HY TO &RE'ER HVDC THANHVAC(

L%$3 !ist#$+ tr#$s*issi%$

( ti*s *%r $r3y tr#$s*its t"#$ AC8s#* li$s;

Lss l%sss 8$% i$!5+t#$+, +#-#+it#$+;.

C%st %2 tr#$s*issi%$ *!i5* > l#$! is l%w.

1#i$t$#$+ > %-r#ti%$ +%st is l%w.

I$iti#l +%st is "i3" b5t %6r#ll +%st is l%w t"#$ #+.





CO1PARISON ?/W AC > DC

TRANS1ISSION COST.



HVDC TECHNO$O#Y

• I2 DC is r45ir! t% b 5s! 2%r tr#$s*issi%$

#$! si$+ %5r -ri*#ry s%5r+ %2 -%wr is A.C,

• T)e *o++o,i-. /e t)ee b/si stes:2

&. C%$6rt AC i$t% DC 8etie

@. Tr#$s*it DC

. C%$6rt DC i$t% AC 8 i-5ete



HO% IT %ORKS B



COM&ONENTS O' HVDCTRANSMISSION SYSTEMS

• C%$6rtrs

• S*%%t"i$3 r#+t%rs

•

H#r*%$i+ ltrs• R#+ti6 -%wr s5--lis

• El+tr%!s

•

DC li$s• AC +ir+5it br#=rs



CONVERTERS

• Pr2%r* AC/DC 8r+tir; #$! DC/AC 8i$6rtr; +%$6rsi%$

• +%$sist %2 bri!3s #$! tr#$s2%r*rs

DC SMOOTHIN# REACTORS

• D+r#s "#r*%$i+s i$ 6%lt#3s #$! +5rr$ts i$ DC li$s.

• Pr6$t +5rr$t 2r%* bi$3 !is+%$ti$5%5s.

AC HARMONIC 'I$TERS

• Us! t% r!5+ "#r*%$i+s 8i$ 6%lt#3s #$! +5rr$ts; +#5s! by+%$6rtrs w"i+" 3$r#t "#r*%$i+s,

• H$+ -r6$t 2r%* i$tr2r$+ wit" #$y +%** syst*.



REACTIVE &O%ER SU&&$IES

• C%$6rtr *#y +%$s5* r#+ti6 -wr %2 #bt (0 / *%r %2 #+ti6 -wr.

•R#+ti6 -%wr is, t"r2%r, -r%6i!! $#r +%$6rtr.

• F%r # str%$3 AC -%wr syst*, t"is r#+ti6 -%wr is -r%6i!! by #s"5$t +#-#+it%r.

E$ECTRODES•

Us! t% -r%6i! +%$$+ti%$ t% t" #rt" 2%r $5tr#l.

DC $INES• T"y *#y b %6r"#! li$s %r +#bls.

• DC li$s #r 6ry si*il#r t% AC li$s.

CIRCUIT BREAKERS• Used to break cct if fault occurs in the transformer and for taking the DC link out of

service.



6 &U$SE RECTI'IER



6 &U$SE RECTI'IER%AVE'ORM





&O%ER '$O% DIRECTION

• D+r#s 6%lt#3 #t st#ti%$ ? %r i$+r#s 6%lt#3 #t st#ti%$ A,

-%wr %ws 2r%* A t% ?.





• P%wr r6rs#l is %bt#i$! by r6rs#l %2 -%l#rity %2b%t" !ir+ti%$.





• 1%st +%$%*i+#l s%l5ti%$ t% tr#$s*it l+tri+#l$r3y %6r !ist#$+ *%r t"#$ :00=*.



• Altr$#ti6 t% s5b*#ri$ tr#$s*issi%$, #ls% +%$%*i+#l2%r s"%rtr !ist#$+s i. &0 =* %r *%r.



FOR &0 K1



Ty-s %2 DC li$=s

1%$%-%l#r

?i-%l#r

H%*%-%l#r



MONO&O$AR $INKS

• It uses one conductor .

• Return path by ground/water.

•

D5 t% i6 -%l#rity, $% +%r%$# 7+t%++5rs.



BI&O$AR $INKS

• H#s tw% +%$!5+t%rs.

•

5$+ti%$ b/w t" +%$!5+t%rs is3r%5$!!.

• C#$ +#rry "#l2 t" r#t! l%#!, i2 2#5lt%++5rs i$ %$ -%l.



HOMO&O$AR $INKS

• H#s tw% +%$!5+t%rs -%l#rity8 5s5#lly$3#ti6.;

• T" rt5r$ -#t" 2%r s5+" # syst* ist"r%53" 3r%5$!.



ADVANTAGES



TECHNICA$ ADVANTA#ES

• Syst* st#bility

• lss C%r%$# L%ss #$! $% s=i$ 7+t

•

Gr#tr Rli#bility.



ECONOMIC ADVANTA#ES

• Tr#$s Li$s lss li$s > lss *tri#lr45ir!, +"#-r.

• T%wrs $#rr%wr, si*-lr #$! +"#-r

• Li$ l%sss lss i$+r#ss <+i$+y.

• E#rlir li$s +#$ b 5s!.



DISADVANTA#ES

• P%wr l%ss i$ +%$6rsi%$, swit+"i$3#$! +%$tr%l.

• EJ-$si6 i$6rtrs.

• Pr =il%*tr +%st r!5+s i2 li$s #r%2 2#irly %2 l#r3 !ist#$+s.



EAM&$ES O' &RO7ECTS

&; G%tl#$! HVDC

• C#-#+ity (0 1W

• L$3t" 0 =*

• I$ %-r#ti%$ si$+ &'''

R45ir*$ts

•

#!!iti%$#l wi$! -%wr, '0 1W• *i$i*i9! $6ir%$*$t#l

i*-#+t



CONC$USION

• R+$t st5!is i$!i+#t t"#t HVDC syst*s#r 6ry rli#bl.

• Vry l#r3 i$6st*$ts i$ .3 i$ C"i$# #$!I$!i# s"%ws t"#t "i3"6%lt#3 !ir+t+5rr$t will 6ry i*-%rt#$t i$ t" 25t5r,s-+i#lly i$ bi3, $wi$!5stris +%5$tris.



•Thank

you!

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