PERFORMANCE EVALUATION AND IMPROVEMENT IN TRANSIENT INSTABILITY OF IEEE 9 BUS SYSTEM USING EXCITER AND GOVERNOR CONTROL

7/25/2019 PERFORMANCE EVALUATION AND IMPROVEMENT IN TRANSIENT INSTABILITY OF IEEE 9BUS SYSTEM USING EXCITER AND GOVERNOR CONTROL

1/28

PERFORMANCE EVALUATION AND

IMPROVEMENT IN TRANSIENT

INSTABILITY OF IEEE 9 BUS SYSTE

USING EXCITER AND GOVERNOR

CONTROL

Divya Asijaa, Pallavi Choudekarb, Ruchirac, Malvika Choa,b,c,dAmity University Uttar Pradesh


2/28

Objective

I. Load flow analysis of IEEE 9 bus test system.II. Transient Analysis by initiating short circuit fault.

III. Transient instability improvement with the application of

Excitation System.


3/28

Power System Stability


4/28

Load Flow Analysis of IEEE 9 bus test syst


5/28

Generator and Load data of IEEE 9 bus Test System

!ondition

S" o" ame of

Gen

Generator

#$

Generator

#var

#%A A%&

' ' '()"*9 '9'"'9 '++ ,es

* - )- .-"'( '++ o

/ 9 0+"+0 /0 '++ o

S" o" ame of

Load

Load

#$

Load

#var

#%A

' / '+'"1- /-"19 '+0"1

* ( '*+"0 1)"' '*9"9

/ 0 9'"'' /+"/( 9("+


6/28

S" o" ame of

2us

om 3% P4 volt %olt 53%6 An7le

' ' ') ' ') 9"

* * */+ +"))(// *+/")-- /"

/ / */+ +")'*)9 ')("91( .+

1 1 */+ +"00*00 '00"0/) '"

- - '/") +"0((+) '+"-00* ("

( ( */+ +"01/)' '0'"+0( .0

0 0 */+ +"0+0)* '(*"09) .9

) ) */+ +"0-1*) '0'"1'1 .(

9 9 '("- +"00'+) '*"0*/ .*

2us 8ata of IEEE 9 bus Test System in ormal !o


7/28

#ecanical In:ut of Gen;'< Gen;- and Gen;9 vs" time &eactive :ower of Gen;'< Gen;- and

=uantitative &e:resentation of IEEE 9 bus Test Sy

Steady State !ondition


8/28

2us %olta7e of Gen ;'< Gen;- and Gen; 9 vs" time Fre>uency of Gen ;'< Gen;- and Gen

Field %olta7e of Gen ;'< Gen;- and Gen; 9 vs" time &otor An7le of Gen ;'< Gen;- and Ge


9/28

Stability Problem

I. Transient Stability

II. oltage Stability

III. Long Term and !id Term Stability

The transient stability is the ability of the power syste

maintain synchronism when sub"ected to severe tran

disturbances.E?am:les@ Transmission line faults.

Sudden large load change.

line tripping.


10/28

Load flow &esults durin7 te faulty conditio

#ecanical In:ut of Gen;'< Gen;- and Gen;9

vs" time

&eactive :ower of Gen;'< Gen;- and G

time


11/28

2us %olta7e of Gen ;'< Gen;- and Gen; 9 vs"time S:eed of Gen ;'< Gen;- and Gen; 9

Field %olta7e of Gen ;'< Gen;- and Gen; 9 vs"

time

&otor An7le of Gen ;'< Gen;- and Ge


12/28

=uantitative value of IEEE 9 bus test system in Tr

condition

o of

7enerator

% 5Pu6 &otor An7le #ecanical

In:ut

Terminal

#var

Field

%olta7e

Accel

#$

T

' +"9-/- */"(*9 '()"*9 '/-"(1 '"1*1' '*"-(

- +"0*'9 **"((- )- ()"1( +"0)1( ("1)

9 +"-00' 9"10) 0+"+0 -("*- +"))-9 '*"/0

#enerator $ata of IEEE 9 bus test system in transient condition


13/28

2us data of IEEE 9 test bus system

2us o" %5:u6 An7le 5de76 Fre>uency Total Load

#$

Total Loa

#var

'

+"9-/-

'+")( -0"/-(

* +")*+* 1"(1 -0"/-1

/ +"0-'* +"-0 -0"/-* )("(1 /)"/'

1 +"0'*( *"99 -0"/10

- +"0*'9 0"1( -0"/1/( +"('19 .1"+9 -0"/-( (("'1 **"+-

0 +"(+/* .("/' -0"/-/ )*"-+ /*")(

) +"(+-* ./"1+ -0"/-(

9 +"-00' +"(+ -0"/-9


14/28

Im:rovement of system stability wit te el: of G

#odel !lass Object Ty:e Active Fully Su::orted

#acine #odel G!LS / ,es

GO%E&O& ,GO% ' ,es


15/28

=ualitative &e:resentation of IEEE 9 bus test syste

of Governor

#ecanical In:ut of Gen;'< Gen;- and Gen;9 vs"

time&eactive Power of Gen;'< Gen ;

vs" time


16/28

2us %olta7e of Gen;'< Gen ;- and Gen;9 vs" time S:eed of Gen;'< Gen ;- and Gen;9

Field %olta7e of Gen;'< Gen ;- and Gen;9 vs" time &otor An7le of Gen;'< Gen ;- and Ge


17/28

o" of

Gen

% 5Pu6 &otor

An7le

#ecanical

In:ut

Terminal

#var

Field

%olta7e

Accel

#$ Te

' +"9/-/ *)"1(* '()"*9 *''"1' '"1*1' /"*9 '

- +"0+*( /+"*9* )-"++ '("'' +"0)1( .-"00

9 +"-(9( .*"9)' '-"++ )9"9+ +"))-9 1"/9

Generator data of IEEE 9 bus test system in trancondition


18/28


#$

' +"9/-/ '-"1' -1")1/

* +")++/ )"'9 -1")1-

/ +"0/*+ 1"/1 -1")1) )*"*(

1 +"(9*( 0"'+ -1")-*

- +"0+*( '*")* -1")-0

( +"-919 .-"/+ -1")11 ('"0)

0 +"-)*9 .-"9/ -1")10 00"*+

) +"-)00 .-"/0 -1")11

9 +"-(9( .-"') -1")1*

2us data of IEEE 9 bus test system in transient co


19/28

Im:rovin7 metod usin7 of i7 E?citation System

#odel !lass Object Ty:e Active Fully Su::orted

#acine #odel G!LS / ,es

E?citer A!02 ' ,es

StabiliBer PSS'A ' ,es


20/28

#ecanical In:ut of Gen;'< Gen;- and Gen;9 v time &eactive :ower of Gen;'< Gen;- and G

=uantitative &e:resentation of IEEE 9 bus system usin7 of


21/28

Field %olta7e of Gen;'< Gen ;- and Gen;9 vs" time &otor An7le of Gen;'< Gen ;- and

2us %olta7e of Gen;'< Gen ;- and Gen;9 vs" time S:eed of Gen;'< Gen ;- and Gen


22/28

o of

Gen

% 5Pu6 &otor

An7le

#ecanical

In:ut

Terminal

#var

Field

%olta7e

Accel

#$ T

' +"9)/0 *0"0/+ '(1"+/ '(0"0+ '"*+/0 .*")0

- +"))0- '0")'9 )-"++ )*"/9 +"9+)( *"9-

9 +"9(+9 *"/09 0+"+0 0+"*( '"0)*- +"'-

Generator data of IEEE 9 2us test system usin7 of ESystem


23/28


#$

Total

#v

' +"9)/0 ''"*) 19"00+

* +"9/(1 1"01 19"00+

/ +")9/) '"'+ 19"00' 90"1) /1"

1 +")))( *"-* 19"00*

- +"))0- ("+/ 19"00/

( +")9(* .1"0+ 19"0() )-")) *)"

0 +")(1- .-"-' 19"0(9 ''*")/ 11"

) +"9+(0 .1"/' 19"0(0

9 +"9(+9 .*"// 19"0((

2us data of IEEE 9 2us test system usin7 of E?ciSystem

&esults and 8iscussion


24/28

&esults and 8iscussion

$ata of generators in the case of steady state

o" of

GE

#ecanical

in:ut

#var Field

%olta7e

&otor

An7le

#$

GE.' '()"*9 '9'"9+ '"1*1' */"(*/ '()"*9

GE.- )- .-"'( +"0)1( **"()) )-

GE.9 0+"+0 /0"++ +"))-9 9"- 0+"+0

o" of

GE

#ecanical

in:ut

#var Field

%olta7e

&otor

An7le

#$

GE.' '()"*9 '/-"(1 '"1*1' */"(*/ '/-"(1

GE.- )- ()"1( +"0)1( **"()) ()"1)

GE.9 0+"+0 -("*- +"))-9 9"- -+"*-

$ata of generators in the case of transient condition


25/28

o" of

GE

#ecanical

in:ut

#var Field

%olta7e

&otor

An7le

#$

GE.' '()"*9 *''"1' '"1*1' *)"1(* '-+"1

GE.- )- '("'' +"0)1( /+"*9* )*"01

GE.9 '- )9"9+ +"))-9 .*"9)' 9"(0

o" of

GE

#ecanical

in:ut

#var Field

%olta7e

&otor

An7le

#$

GE.' '(1"+/ )/"90 '"*+/0 *0"0/+ '(0"0

GE.- )- +")0 +"9+)( '0")'9 )*"/9

GE.9 0+"+0 /9'")0 '"0)*- *"/'09 0+"*(

$ata of generators %sing of #overnor

$ata of generators %sing of the Excitation system


26/28

!onclusion

&ower system has been compared using three cases that are &re 'au

'ault( and After 'ault. The third case has two type )Type * and Type

first governor is used for fre,uency control and improve the transient

and type + use the excitation system for improving the system instabi&re 'ault condition( we are getting the power -+-.- !/( which i

mechanical input. After introducing fault the generated power decre

-+-.- to +01.-2. In the case of governor( speed can be easily

compare the others case and In this case of governor( we are getting

+1+.3+ !/. $uring the 'ault( power has been decrease and this powe

been improved by using the excitation system which will result into

generated power 4-+5.-0!/6 which is approximately e,ual to -+-.-

fault condition6. So it is concluded that during the fault if we are

excitation system( then we can easily control the voltage and system p

can protect the whole system from transient instability.


27/28

Future As:ects

It is observed that the transient stability improvement m

utili7ing &S8based algorithm can be implemented in fututhe similar case further employing :S';Ls with si7es

locations results from the optimi7ation algorithm will fu

improve the transient stability of the power system under

and for the considered fault.


28/28

TA3,O4

Documents

PERFORMANCE EVALUATION AND IMPROVEMENT IN TRANSIENT INSTABILITY OF IEEE 9 BUS SYSTEM USING EXCITER AND GOVERNOR CONTROL