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© ABB Group August 3, 2015 | Slide 1
Improving Power System St!ility"#roug# Integrted Power SystemSt!ili$ers
Rudolf Wieser, Matthias Baechle, Valerijs Knazkins – ATPE
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%&"'I()
Controlled enerator on rid
"#e min *un+tions o* n
Automti+ oltge -egultor .A-/
"#e min *un+tions o*
Power System St!ili$er .PSS/
!o" to test an AVR s#ste$
Introdu+tion to -el time Simultor
rid Code co$%liance testin&
&(I"-%' !uilt in +omplin+e test *un+tions
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"#e min *un+tions o* n A- Automti+ oltge -egultor
Stteo*t#ert e+ittion systems re euipped wit# *st
+ting voltge regultors
Ad'anta&es(
4st +ting voltge +ontrol nd re+tive power
support Providing syn+#roni$ing torue +omponent
)isad'anta&e(
Introdu+ing negtive dmping torue +omponent
*olution to t#e redu+ed dmping torue pro!lem
Power System St!ili$ers
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odel o* single Genertor +onne+ted to Grid
"ur!ine nd Genertor e+#ni+s
"ur!ine driving torue "m
Genertor !r6ing torue "e
e+#ni+l rottionl speed 7
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odel o* single Genertor +onne+ted to Grid
"ur!ine nd Genertor 8onne+tion to Grid
"ur!ine 9 Genertor
Genertor !re6er
Stepup trns*ormer
"rnsmission line
In*inite !us .+onstnt voltge/
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odel o* single Genertor +onne+ted to Grid
"ur!ine nd Genertor +onne+ted to Grid
A single genertor +onne+ted to lrge grid +n !e
represented !y t#e P#illips:e**ron model
.ssuming +onstnt *ield voltge nd me+#ni+l torue/
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odel o* single Genertor +onne+ted to Grid
'ineri$ed odel t +ertin %perting Point
A single genertor +onne+ted to lrge grid +n !e
represented !y t#e P#illips:e**ron model
.ssuming +onstnt *ield voltge nd me+#ni+l torue/
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odel o* single Genertor +onne+ted to Grid
"orue ;istur!n+e Imp+t
:rmoni+ P#sor -epresenttion "orue euili!rium distur!n+e
)le+tri+ torue produ+es nturl positive dmping
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odel o* single Genertor +onne+ted to Grid
4st oltge 8ontrol Imp+t
:rmoni+ P#sor -epresenttion Genertor plus A-
)le+tri+ torue *orm A- *un+tion produ+es
negtive dmping torue
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odel o* single Genertor +onne+ted to Grid
Power System St!ili$er 4un+tion
Power System St!ili$er .PSS/
Bnd limited dmping torue +ontri!ution
Speed estimtor *rom ele+tri+l voltge nd +urrent signls
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%&"'I()
Controlled enerator on rid
"#e min *un+tions o* n
Automti+ oltge -egultor .A-/
"#e min *un+tions o*
Power System St!ili$er .PSS/
!o" to test an AVR s#ste$
Introdu+tion to -el "ime Simultor
rid Code co$%liance testin&
&(I"-%' !uilt in +omplin+e test *un+tions
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Syn+#ronous +#ine "rnsient Simultor"ur!ine, Genertor, "rns*ormer, 'ine to in*inite Bus
"ypi+l tur!ine genertor rrngement in power plnt
Automti+ oltge -egultor .A-/
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Syn+#ronous +#ine "rnsient Simultor"ur!ine, Genertor, "rns*ormer, 'ine to in*inite Grid
S"S-"
-el "ime Simultion o*
"ur!ine nd governor .simpli*ied/
Genertor
Bre6er nd stepup trns*ormer
Grid representtion wit# in*inite Bus oltge
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Syn+#ronous +#ine "rnsient Simultor"ur!ine, Genertor, "rns*ormer, 'ine to in*inite Grid
S"S-"
A- #rdwre
in t#e loop
-el "ime
Simultion
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Syn+#ronous +#ine "rnsient Simultor"ur!ine, Genertor, "rns*ormer, 'ine to in*inite Grid
S"S-"
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Syn+#ronous +#ine "rnsient SimultorS"S-"
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%&"'I()
Controlled enerator on rid
"#e min *un+tions o* n
Automti+ oltge -egultor .A-/
"#e min *un+tions o*
Power System St!ili$er .PSS/
!o" to test an AVR s#ste$
Introdu+tion to -el "ime Simultor
rid Code co$%liance testin&
&(I"-%' !uilt in +omplin+e test *un+tions
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A- Grid 8ode 8omplin+eGrid 8ode )mple
)+erpt *rom o* lo+l grid +ode
>Overall Excitation System Control Characteristic
…The frequency domain tuning of the Power System
Stabilizer shall also be demonstrated by inecting a
!"#$z%#$z band limited random noise signal into the &utomatic 'oltage (egulator reference… while the
)enerating *nit is o+erating at a ty+ical load level"""
…The dam+ing contribution of the Power System
Stabilizer shall im+rove the system%stability within the
frequency%band of interest ,com+ared to the system
res+onse without a stabilizer-.
i"e"/ !"#$z % #$z ?
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Grid 8ode 8omplin+e "esting
Test sche$e forthe $easure$ent
of the
corres%ondin&
transfer function
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Grid 8ode 8omplin+e "esting
Ti$e do$ain+res%onse of the
s#ste$ "ithout
the stailizer,
"hile injectin&
noise si&nals(
ExpertDays09
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Grid 8ode 8omplin+e "esting
Ti$e do$ain+res%onse of the
s#ste$ "ith the
stailizer, "hile
injectin& noise
si&nals(
-.
ExpertDays09
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Grid 8ode 8omplin+e "esting
Ti$e do$ain+res%onse of the
s#ste$ "ith the
stailizer, "hile
injectin& noise
si&nals(
ExpertDays09
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Grid 8ode 8omplin+e "esting
/re0uenc# do$ainres%onse of the
s#ste$ "ith
1&reen line2 and
"ithout 1lue line2
the stailizer
connected(
( )( )
( )
e
ref
P j F j
V j
ω ω
ω
∆=∆
-20
-15-10
-5
0
5
10
15
20
25
M a g n i t u d e [ d B ]
Frequency [Hz]
10.2 5
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Grid 8ode 8omplin+e "esting
Ti$e do$ainres%onse of the
s#ste$ "ith
1usin& different
&ains2 and
"ithout 1lue line2
the stailizer
connected(
time @s3 4 5 6 -
37-8
37-5
37-9
37-6
37-:
P e
@ p B u
B A
wCo PSS
wit# PSS, DS1E2
wit# PSS, DS1E3
wit# PSS, DS1EF
wit# PSS, DS1E10
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