Load Frequency Control Using Fuzzy Logic Controller of Two AreaPower System N.Chandu prasad148W1D5613contents load frequency control (LC! "uto#at$c %enerat$on controller("&C! '(o area po(er syste# ($th )*D controller u++y lo%$c controller Dyna#$c frequency responses plots Conclus$on ,l$de - 'he pro.le# of controll$n% the real po(er output of %enerat$n% un$ts $n response to chan%es $n syste# frequency and t$e/l$ne po(er $nterchan%e ($th$n spec$f$ed l$#$ts $s 0no(n as load frequency control (LC! 'he 1.2ect$3es of LC are to pro3$de +ero steady/state error of frequency ,l$de 3load frequency control (LFC)Load frequency control bloc diagram of an isolated !ower system,l$de 4Automatic generation controller"uto#at$c %enerat$on controller ("&C! $s to #a$nta$n the .alance .et(een the %enerat$on and de#and of a part$cular po(er syste#. 'here are #any types of controller such l$0e proport$onal4 $nte%ral4 der$3at$3e and co#.$nat$onal of these ()*4 )*D!.,l$de 5"loc diagram of a P#$ controller ,l$de 6Where y (t! $s the controller output and e(t! $s the error s$%nal. 5p, Ki and Kd are proportional, integral and derivative gains of the controller. A%C control for isolated !ower system,l$de 6"loc diagram of LFC of two area !ower system,l$de 8FU&&' L(%#C C()T*(LL+* po(er syste# dyna#$c character$st$cs are co#ple7 and 3ar$a.le4 con3ent$onal control #ethods cannot pro3$de des$red results *ntell$%ent controller can .e replaced ($th con3ent$onal controller to %et fast and %ood dyna#$c response $n load frequency pro.le#s. u++y Lo%$c Controller (LC! can .e #ore useful $n sol3$n% lar%e scale of controll$n% pro.le#s ($th respect to slo( con3ent$onal controller ,l$de 8 $nally resultant fu++y su.sets represent$n% the controller output are con3erted to the cr$sp 3alues us$n% the central of area (C1"! defu++$f$er sche#e. ,l$de 19Fuzzy editor in matlab,l$de 11FLC bloc diagram,l$de 1-,l$de 13Fuzzy rules*ule base editor,l$de 15LFC of two area !ower system using P#$ controllerLFC of two area !ower system using fuzzy logic controller,l$de 16$ynamic res!onses for frequency de,iation of area -,l$de 16$ynamic res!onses for frequency de,iation using P#$ controller and FLC ,l$de 181utput response of area 1,l$de 181utput response of area -1utput response of t$e/l$ne of po(er syste#.C()CLUS#() 'he syste# perfor#ance $s o.ser3ed on the .as$s of dyna#$c para#eters $.e. settl$n% t$#e4 o3ershoot and undershoot. 'he syste# perfor#ance character$st$cs re3eals that the perfor#ance of fu++y lo%$c controller .etter than other controllers,l$de -9*+F+*+)C+S *nternat$onal :ournal of ;#er%$n% 'echnolo%y and "d3anced ;n%$neer$n% We.s$te< (((.$2etae.co# (*,,N --59/-4584 =olu#e -4 *ssue 194 1cto.er -91-! ,aadat >.4 ?)o(er ,yste# "nalys$s 4 @c&ra(/ >$ll4 1888 ).Co#$nos and N.@unro4 )*D Controller< recent tun$n% #ethods "nd des$%n to spec$f$cat$on 4 *;;proceed$n%4 Control 'heory and "ppl$cat$on4 pp46/534 -99-.,l$de -1'han0 you,l$de --