pengontrolan
TRANSCRIPT
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 1/20
OPEN LOOP AND CLOSEDLOOP FEEDBACK SYSTEM
Kostan D. F Mataubenu
Nim: 2021201
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 2/20
O!e"!ie#
o$n%ust"ia& Cont"o& S'stem #i&& beo(e"ate% as o(en &oo( o" )&ose% &oo(
oMan' Cont"o&&e" use% in $n%ust"ies to
*ee( a s'stem in )onstant )on%ition o"%esi"e% )on%ition. E+. Tem(e"atu",!e&o)it', &i-ui% &e!e&, et).
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 3/20
OPENLOOP AND CLOSED LOOP SYSTEM
oO(en Loo( S'stem
O(e"ate% in manua& mo%e an% notusin/ ee%ba)* si/na&.
E+am(&e o O(en Loo( S'stem
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 4/20
o C&ose% Loo( S'stem
O(e"ate% in auto mo%e, usin/
ee%ba)* si/na& "om senso".
Basi) Pa"t o C&ose% Loo( S'stem
SPError
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 5/20
n%e"stan%in/ te"ms in C&ose% Loo(S'stem
o
Setpoint SP3 is %esi"e% !a&ue to be"ea)4e% in s'stem
oProcess Variable P53 is ee%ba)* si/na&"om senso", a&so )a&&e% senso" si/na&
oError is t4e %i6e"en)e bet#een SP an%P5, )an be a (ositi!e o" a ne/ati!e !a&ue
oSumming Junction is t4e (&a)e #4e"e
t4e SP is )om(a"e% to t4e P5.oController is use% to a%7ust out(utsi/na& in "es(ons to t4e amount o e""o".
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 6/20
8ate" in
$9P
8ate" usausa/e
Pi!otbea"in/
Fee%ba)*Potentiomete"
Set(oint(otentiomete"
-
+
;ain(otentiomete"
$9P )u""ent9(essu"e
)ont"o&&e"
20 (siAi" su((&'
1<1= (siAi" si/na&
F&o# !a&!e
>oat
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 7/20
Cont"o&&e" ?es(onse
oOnO6 Cont"o&
oP"o(o"tiona& Cont"o& P3
o$nte/"a& Cont"o& $3
o
De"i!ati!e Cont"o& D3
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 8/20
o On OFF Cont"o&
Can tu"n t4e out(ut on o" o6 @na&
)ont"o& e&ement3
Setpoint: u((e"&o#e" &e!e&3 an%
&o# )am u((e"&e!e&3PV: #ate" &e!e&
Sensor: >oatController: s#it)4
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 9/20
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 10/20
Di6e"entia& ;a(
$s t4e %istan)e bet#een u((e" an% &o#
)am
Di6e"entia&
/a(
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 11/20
;ain9("o(o"tiona&, "eset9inte/"a& an%"ate9%e"i!ati!e a"e un)tion t4at
%ete"mine 4o# ast t4e )ont"o&&e")4an/e t4e out(ut si/na&
Ea"&' usin/ (eneumati) )ont"o&, !a)umtube an% o( am(
No# a%!a)e% usin/ mi)"o("o)esso"
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 12/20
Gain
Out(ut /ain + e""o"
K) + E
P5 #i&& ne!e" "ea)4
t4e SP T4e &a"/e" t4e /aint4e )&ose" t4e P5 #i&&
/et to t4e SP As /ain in)"ease%,P5 #i&& os)i&&ate mo"e
To so&!e t4ese ("ob&ems,:A%%in/ bias to t4e a&/o"itmOut(ut K) + E3 M+
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 13/20
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 14/20
T'(e o s'stem "es(onse
Time
P5
"es(onse un%e"%um(e% ?es(onse C"iti)a&&'
%um(e%
?es(onse O!e"%um(e%
time
P5
time
P5
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 15/20
Mo%e Manua& Tunnin/ T4e)ont"o&&e"
ie/&a"Ni)4o&as Met4o%3
Out(ut in)"ease% 20 t4en 10. ;et P5
K( P59out(ut
Ne+t obtain Dead Time (DT): t4e timet4at P5 be/in to )4an/e in 10 out(ut.
Time Constant: Time )onstant o" t4e)4an/e o < o 10 out(ut
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 16/20
Gain (P) Reset (I) Rate (D)
P only TC/(Kp*DT)
PI 0.9TC/(Kp*DT) 3DT
PID 1.2TC/(Kp*DT) 2DT 0.5DT
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 17/20
Tunning the Controller inautomate mode
Kuu&timate /ain is /ain !a&ue t4at)ause t4e P5 in sustaine% os)i&&ationat 2= tota& P53
Pu u&timate (e"io% is (e"io% o oneos)i&&ation in sustaine% os)i&&ation
Type oControl
er
Gain !eset !ate
P 0.= KuP" 0.= Ku Pu91.2
P"D 0.Ku 0.=Pu Pu9H
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 18/20
P"o)ess A&a"ms An% De!iation A&a"ms
Tim
e
P5I$;I ALA?M
LO8 ALA?M
Tim
e
1010 %e!iation
10 De!iation
<J0
<J0
P"o)essA&a"m
De!iation A&a"m
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 19/20
Cas)a%e% Cont"o& S'stem
7/23/2019 pengontrolan
http://slidepdf.com/reader/full/pengontrolan 20/20
Te"ima*asi4