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EEPS 2003M.Tech DEGREE EXAMINATIONS,SEPTEMBER,2011

Second Semester

POWER SYSTEM ENGINEERING

POWER SSTEM OPERATION AND !ONTRO"

SOLUTIONS & SCHEME OF EVALUATION

1. a.Explai !"# #$%%i$ l%a' 'i(pa!$" %) a p%*#+ (,(!# )%+ -##+a!%+( $a(#

*i!"%/! $%(i'#+i !"# li# l%((#(.Al(% '+a* i!( )l%* $"a+! a' #xplai



1 #!#+i# !"# %p#+a!i ($"#'/l# %) 2-##+a!%+ $a(# %) 100MW #a$" *"%(#

i$+##!al $"a+a$!#+i(!i$( a+# i# ,

The m#n#m$m %o&d on e&ch $n#t #s 10MW .The tot&% %o&d to 'e s$((%#ed #s 1)0MW

1)0

21

=+ P P

*rom +1 &nd +2

P1-/.MW &nd P2- ).1MW

+or

A((/# .2=λ ,*or th#s &%$e o3 λ ,4ener&t#ons

MW P

MW P

.01).0

).1.2

.012.0

0.2.2

2

1

=

−

=

=

−

=

2.1)5..21

=+=+ P P MW

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*or th#s &%$e o3 7,4ener&t#ons &reP1-)./MW

P2-0MWP19P2-15./MW ,:h#ch #s %ess th&n the dem&nd

Ne6t &((ro6#m&t#on to 2.8 :h#ch 4#es 4ener&t#on &reP1-)MW

P2-)./MW

P19P2-1)0./MWIt #s to 'e seen here th&t the 4ener&t#ons &re coner4#n4 &s 'etter &((ro6#m&t#ons to 7 &re

chosen &nd 3#n&%%; & &%$e 'et:een 2.88 &nd 2.8 :#%% 4#e the o(t#m&% 4ener&t#ons

sched$%e



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Fl%*

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s$((%; %o&d re<$#rements &%% the t#me.The (ro'%em :o$%d 'e to $se $( the ener4; 3rom

h;dro (%&nt s$ch th&t cost o3 r$nn#n4 the ste&m (%&nt #s m#n#m$m.The ste&m (%&nt sho$%d

'e r$n &t const&nt #ncrement&% cost 3or the (er#od #t #s r$n I3 & ste&m (%&nt &nd & h;dro (%&nt #s to s$((%; %o&d 3or & 4#en (er#od &nd the

ch&r&cter#st#cs o3 the (%&nts &re 4#en #n terms o3 c$'#c meter=hr 3or h;dro (%&nt &nd he&t

r&te 3or the ste&m (%&nt &nd c&(&c#t; o3 e&ch (%&nt ,the (ro'%em m&; 'e cons#dered #n t:o

:&;s# "#m#t the ener4; s$((%#ed '; h;dro +#n M:h 3#nd ener4; :h#ch sho$%d 'e

s$((%#ed '; ste&m (%&nt.So%e 3or t#me o3 r$nn#n4 ste&m (%&nt.>no:#n4 the

ener4; to 'e s$((%#ed '; the ste&m (%&nt &nd the %o&d :h#ch #t c&n s$((%; &tm&6#m$m e33#c#enc;.*#nd the t#me 3or :h#ch #t sho$%d 'e r$n.Then 3#nd the

%o&d on ?;dro &nd ste&m (%&nt 3or the (er#od 3or :h#ch e&ch sho$%d r$n

## There m&; 'e & %#m#t on the o%$me o3 :&ter to 'e dr&:n 3rom the resero#r3or the h;dro (%&nt.*#nd the ch&r&cter#st#cs o3 h;dro (%&nt .*#nd the t#me 3or

:h#ch ste&m (%&nt sho$%d 'e r$n

T"# )%ll%*i i)%+a!i% i( +#4/i+#' )%+ !"# (!/', %) !"# p+%l## ?;dro &nd therm&% (%&nt c&(&c#t#es the#r ch&r&cter#st#cs

## N$m'er o3 $n#ts### Pen&%t; 3&ctors de(end#n4 on the t;(e o3 3$e% $sed

# Tr&nsm#ss#on %oss &t e&ch st&t#on

Tot&% %osses #n the s;stem# Increment&% %osses

## ?e&t &t h;dro (%&nts

UNIT-II

3. Explai !"# $%$#p! %) 5 $%!+%l a+#a 5 *i!" +#(p#$! !% p%*#+ (,(!# a' '##l%p!"# app+%p+ia!# l%$6 'ia+a +#p+#(#!a!i% %) !*% a+#a LFC a' #xplai



7 .a. ##l%p# a a!"#a!i$al %'#l )%+ a !,pi$al AC #x$i!a!i% (,(!# a' #xplai

OUT OF SYLLA8US

. +a* !"# l%$6 +#p+#(#!a!i% %) a $%pl#!# AC #x$i!a!i% (,(!# a' #xplai

i!( )#a!/+#(

OUT OF SYLLA8US

UNIT-III

).a. i($/(( !"# 5(#$/+i!, aal,(i( 5 i p%*#+ (,(!# )+% )/'a#!al(



9 . Explai !"# #!"%'( %) ip+%i %l!a# (!aili!, i p%*#+ (,(!#

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:.. Explai !"# 'i))#+#! 5E#+, C%!+%l C#!#+(; i a((%$ia!i%

*"i$" SCAA

UNIT-IV

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# W#i"!#' l#a(! (4/a+#( (!a!# #(!ia!i%=



<. i($/(( !"# $%$#p! %) l#a(! (4/a+#( #!"%'; %) (!a!# #(!ia!i% )+%

)/'a#!al(



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> Explai *"a! i( #!*%+6 %(#+aili!, a' a' 'a!a i p%*#+ (,(!# (!a!#

E(!ia!i%

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