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8/18/2019 hvdcppt-140421105722-phpapp02.pptx
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BY:
SAURAVKAURA
be13104086
HVDC TRANSMISSION
SYSTEM
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CONTENTS:
• HISTORY.
• INTRODUCTION.
•
WHY PREFERS.• HOW DOES IT WORKS.
• ADVANTAGES/DISADVANTAGES
•
CONCLUSION
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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.
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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;
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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%$
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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%$.
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%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"#$ #+.
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CO1PARISON ?/W AC > DC
TRANS1ISSION COST.
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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
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HO% IT %ORKS B
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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
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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*.
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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.
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6 &U$SE RECTI'IER
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6 &U$SE RECTI'IER%AVE'ORM
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&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% ?.
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• P%wr r6rs#l is %bt#i$! by r6rs#l %2 -%l#rity %2b%t" !ir+ti%$.
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• 1%st +%$%*i+#l s%l5ti%$ t% tr#$s*it l+tri+#l$r3y %6r !ist#$+ *%r t"#$ :00=*.
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• Altr$#ti6 t% s5b*#ri$ tr#$s*issi%$, #ls% +%$%*i+#l2%r s"%rtr !ist#$+s i. &0 =* %r *%r.
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FOR &0 K1
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Ty-s %2 DC li$=s
1%$%-%l#r
?i-%l#r
H%*%-%l#r
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MONO&O$AR $INKS
• It uses one conductor .
• Return path by ground/water.
•
D5 t% i6 -%l#rity, $% +%r%$# 7+t%++5rs.
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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.
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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$!.
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ADVANTAGES
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TECHNICA$ ADVANTA#ES
• Syst* st#bility
• lss C%r%$# L%ss #$! $% s=i$ 7+t
•
Gr#tr Rli#bility.
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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!.
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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#$+s.
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EAM&$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! $6ir%$*$t#l
i*-#+t
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CONC$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.
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•Thank
you!
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