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Phone: +41 44 914 36
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71
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bcp@neplan.ch
NEPLAN V555
POWER SYSTEM STABILIZER
MODELS
Standard Dynamic Power System Stabilizers in NEPLAN Power System Analysis Tool
Contents
General
5
Per Unit (p.u.) System:
Power System PSS Diagram
Input Signals to the PSS System:
Output Signals to the PSS System:
Inputs <<enumeration>> of PSSs, STEREOTYPE <<enum>>
5
5
5
6
6
PSS – SIMPLE
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
7
Error! Bookmark not defined.
7
7
PSS – Conventional PSS
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
8
Error! Bookmark not defined.
8
8
PSS - IEE2ST
Parameters
Equivalent model in CIM/CGMES:
- Pss2ST
9
Error! Bookmark not defined.
10
10
PSS - IEEEST
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
11
Error! Bookmark not defined.
11
11
PSS - PSS1
12
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
Error! Bookmark not defined.
12
12
PSS – PSS1 CIM/CGMES
Parameters
Equivalent model in CIM/CGMES:
- Pss1
13
Error! Bookmark not defined.
13
13
PSS - PSS2
14
Parameters
Error! Bookmark not defined.
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1
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
14
14
PSS - PSS3
15
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
Error! Bookmark not defined.
15
15
PSS – PSS1A
Parameters
Equivalent model in CIM/CGMES:
- PssIEEE1A
16
Error! Bookmark not defined.
16
16
PSS – PSS1A CIM/CGMES
Parameters
Equivalent model in CIM/CGMES:
- Pss1A
17
Error! Bookmark not defined.
17
17
PSS - PSS2A
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
18
Error! Bookmark not defined.
19
19
PSS - PSS2B
Parameters
Equivalent model in CIM/CGMES:
- Pss2B
20
Error! Bookmark not defined.
21
21
PSS - PSS2B CIM/CGMES
Parameters
Equivalent model in CIM/CGMES:
- PssIEEE2B
22
Error! Bookmark not defined.
23
23
PSS – PSS3B
Parameters
Equivalent model in CIM/CGMES:
- PssIEEE3B
24
Error! Bookmark not defined.
24
24
PSS – PSS4B
Parameters
Equivalent model in CIM/CGMES:
- PssIEEE4B
25
Error! Bookmark not defined.
26
26
PSS – PSS5
27
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2
Parameters
Equivalent model in CIM/CGMES:
- Pss5
Error! Bookmark not defined.
27
27
PSS – PSSELIN2
Parameters
Equivalent model in CIM/CGMES:
- PssELIN2
28
Error! Bookmark not defined.
28
28
PSS – PSSSH
Parameters
Equivalent model in CIM/CGMES:
- PssSH
29
Error! Bookmark not defined.
29
29
PSS – PSSSK
Parameters
Equivalent model in CIM/CGMES:
- PssSK
30
Error! Bookmark not defined.
30
30
PSS – PTIST1
Parameters
Equivalent model in CIM/CGMES:
- PssPTIST1
31
Error! Bookmark not defined.
31
31
PSS – PTIST3
Parameters
Equivalent model in CIM/CGMES:
- PssPTIST3
32
Error! Bookmark not defined.
33
33
PSS - STAB1
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
34
Error! Bookmark not defined.
34
34
PSS - STAB2A
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
35
Error! Bookmark not defined.
35
35
PSS - STAB3
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
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36
Error! Bookmark not defined.
36
36
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3
PSS - STAB4
Parameters
Equivalent model in CIM/CGMES:
- PssSB4
37
Error! Bookmark not defined.
37
37
PSS - STBSVC
Parameters
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
38
Error! Bookmark not defined.
38
38
PSS - ST2CUT
Parameters
Equivalent model in CIM/CGMES:
- PssWECC
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39
Error! Bookmark not defined.
40
40
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4
Power Systems Stabilizer Models
General
The power system stabilizer (PSS) model provides an input (VPSS) to the excitation system
model to improve damping of system oscillations. A variety of input signals may be used
depending on the particular design.
ENTSO-E, an association of the European electricity transmission system operators, selected
the Common Information Model (CIM) standards of the International Electrotechnical
Commission (IEC) as a basis for its own CIM standards. These standards aim at ensuring the
reliability of grid models and market information exchanges.
In 2013, ENTSO-E adopted a new standard for grid models exchange called the Common Grid
Model Exchange Standard (CGMES). The CGMES is a superset of the IEC CIM/CGMES
standards (belonging to IEC CIM16). It was developed to meet necessary requirements for the
transmission system operators, which exchange data in the areas of system operations,
network planning and integrated electricity markets.
All the CIM/CGMES regulators models are included in NEPLAN Power System Analysis Tools.
Per Unit (p.u.) System:
The p.u. values are based on the machine or Static Var Compensator (SVC) ratings.
Power System PSS Diagram
Input Signals to the PSS System:
V
I
VT
F
W
TM
P
Bus voltage, positive sequence, p.u.
Stator output current, positive sequence, p.u.
Terminal voltage on the machine terminals compensated for the unit
transformer reactance if it is specified.
Frequency in p.u. on the associated node
Rotor speed (synchronous machine).
Mechanical torque (synchronous machine).
Active power in an AC-line or synchronous machine. Positive power is the
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5
PMECH
QE
IE
INJECTED power at the FIRST bus of a line.
Accelerating power, i.e. mechanical power minus active electrical power in p.u.
of machine base.
Reactive power in a line
AC current magnitude in a line.
Output Signals to the PSS System:
VPSS
System PSS output signals (p.u.)
Inputs <<enumeration>> of PSSs, STEREOTYPE <<enum>>
Input signal type (SW). In Dynamics modelling, commonly represented by j parameter
<<enumeration>> InputSignalKind
<<enum>> rotorSpeed
0
Input signal is rotor or shaft speed
(angular frequency)
1
Input signal is rotor or shaft angular
frequency deviation
<<enum>>
inputAddedToErrorSignal
2
Input signal is bus voltage frequency.
This could be a terminal frequency or
remote frequency
<<enum>> busFrequency
3
Input signal is deviation of bus voltage <<enum>> inputHVgateVoltageOutput
frequency. This could be a terminal
frequency deviation or remote
frequency deviation
4
Input signal is generator electrical
power on rated S
<<enum>> generatorElectricalPower
5
Input signal is generating accelerating
power
<<enum>>
generatorAcceleratingPower
6
Input signal is bus voltage. This could <<enum>> busVoltage
be a terminal voltage or remote
voltage
7
Input signal is derivative of bus
voltage. This could be a terminal
voltage derivative or remote voltage
derivative
<<enum>> busVoltageDerivative
8
Input signal is amplitude of remote
branch current
<<enum>> branchCurrent
9
Input signal is generator field current
<<enum>>fieldCurrent
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6
PSS – SIMPLE
PSS simple model.
Parameters
NAME
KPSS
TW
T1
T2
VPSSMAX
VPSSMIN
Type
PU
Seconds
Seconds
Seconds
PU
PU
Description
Gain
Washout time constant
Time Constant
Time Constant
Maximum PSS output
Minimum PSS output
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
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7
PSS – Conventional PSS
PSS simple model.
Parameters
NAME
KPSS
TW
T1
T2
T3
T4
VPSSMAX
VPSSMIN
Type
PU
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
Description
Gain
Washout time constant
Time Constant
Time Constant
Time Constant
Time Constant
Maximum PSS output
Minimum PSS output
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
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8
PSS - IEE2ST
IEEE Stabilizing Model with Dual-Input Signals
Parameters
NAME
SWS1*
SWS2*
K1
K2
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
LSMAX
LSMIN
VCL
VCU
* Description pag. 6
Type
enum
enum
PU
PU
Second
Second
Second
Second
Second
Second
Second
Second
Second
Second
PU
PU
PU
PU
Parameters Range:
0 ≤ T1 ≤ 10
0 ≤ T2 ≤ 10
0 < T3 ≤ 10
0.03 < T4 ≤ 10
0 ≤ T5 < 10
0 ≤ T6 < 2
0 ≤ T7 ≤ 10
Description
Type of input signal #1. Typical Value = rotorAngularFrequencyDeviation
Type of input signal #2. Typical Value = generatorElectricalPower
Gain
Gain
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Limiter
Limiter
Cutoff limiter
Cutoff limiter
0 ≤ T8 ≤ 10
0 ≤ T9 ≤ 10
0 ≤ T10 < 2
0 < LSMAX < 0.3
-0.3 < LSMIN < 0
0 ≤ VCU < 1.25
-0.1 ≤ VCL < 1.0
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Notes
Equivalent model in CIM/CGMES:
- Pss2ST
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10
PSS - IEEEST
IEEE Stabilizing Model
Parameters
NAME
SWS1*
A1
A2
A3
A4
A5
A6
T1
T2
T3
T4
T5
T6
KS
LSMAX
LSMIN
VCL
VCU
* Description pag. 6
Type
enum
PU
PU
PU
PU
PU
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
PU
Parameters Range:
0 ≤ T1 ≤ 10
0 ≤ T2 ≤ 10
0 ≤ T3 ≤ 10
0 ≤ T4 ≤ 10
0 < T5 < 10
Description
Type of input signal #1. Typical Value = rotorAngularFrequencyDeviation
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Gain
PSS output maximum limit
PSS output minimum limit
Cutoff limiter
Cutoff limiter
0.04 < T6 < 2
0 < LSMAX < 0.3
-0.3 < LSMIN < 0
0 ≤ VCU < 1.25
0 ≤ VCL < 1.0
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
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11
PSS - PSS1
Power System PSS General Model.
Parameters
NAME
KQ
TQ
KI
TI
KU
TU
KP
TP
KW
TW
KF
TA
TF
TW1A
TW1
TW2A
TW2
T1
T2
T3
T4
VSMAX
VSMIN
Type
PU
Seconds
PU
Seconds
PU
Seconds
PU
Seconds
PU
Seconds
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
Description
Reactive power gain
Reactive power Time constant
Current Gain
Current Time constant
Terminal voltage gain
Terminal voltage Time constant
Active power gain
Active power Time constant
Rotor speed deviation gain
Rotor speed deviation Time constant
Voltage compensator gain
Voltage compensator Time constant
Time constant
Washout time constant
Washout time constant
Washout time constant
Washout time constant
Time constant
Time constant
Time constant
Time constant
PSS output maximum limit
PSS output minimum limit
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
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12
PSS – PSS1 CIM/CGMES
Italian PSS - three input PSS (speed, frequency, power). Entsoe-CIM/CGMES model.
Parameters
NAME
Type
KF
KPE
KS
KW
PMIN
T10
T5
T6
T7
T8
T9
TPE
VADAT
pu
pu
pu
pu
pu
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Boolean
VSMN
VSMX
pu
pu
Description
Frequency power input gain
Electric power input gain
PSS gain
Shaft speed power input gain
Minimum power PSS enabling
Lead/lag time constant
Washout
Filter time constant
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Electric power filter time constant
Signal selector, if VADAT=1 the switch is closed (Generator Power is greater than
Pmin), else it is open (Pe is smaller than Pmin)
PSS output max limit
PSS output min limit
Notes
Equivalent model in CIM/CGMES:
- Pss1
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13
PSS - PSS2
Power system PSS, ASEA type QAVD 101
Parameters
NAME
Type
SWM
Boolean
TM1
TE
TW
KDW
TDW
KA
VSMAX
VSMIN
Seconds
Seconds
Seconds
PU
Seconds
PU
PU
PU
Description
Switch control
0 = No compensating signal is applied
1 = Compensating signal is applied. TM has to be specified
Load torque signal time constant
Active power time constant
Washout time constant
Gain
Time Constant
Gain
PSS output maximum limit
PSS output minimum limit
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
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14
PSS - PSS3
Power System PSS IEEE-model
Parameters
NAME
Type
SWI
enum
A1
A2
A3
A4
A5
A6
T1
T2
T3
T4
T5
T6
KS
VSMAX
VSMIN
VCU
VCL
PU
PU
PU
PU
PU
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
PU
Description
Input switch control:
0 = W-1, Synchronous machine rotor speed deviation is used as input
1 = P, Synchronous machine active power is used as input
2 = VT, Terminal voltage in p.u. is used as input
3 = TM, Mechanical torque in p.u. is used as input
4 = PMECH, Acceleration power in p.u. is used as input
5 = QE, Reactive power in the specified line is used as input
6 = IE, Current in the specified line is used as input
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Time Constant
Time Constant
Time Constant
Time Constant
Time Constant
Time Constant
Gain
PSS output maximum limit
PSS output minimum limit
Limiter
Limiter
Notes
Output, switch limiter:
If
VT < VCL
If
VT > VCU
====>
====>
VPSS=0
VPSS=0
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
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15
PSS – PSS1A
IEEE Std 421.5-2005 type PSS1A power system PSS model.
Parameters
NAME
SWS1*
KS
TR
TW
A1
A2
T1
T2
T3
T4
VSTMAX
VSTMIN
* Description pag. 6
Type
enum
PU
Seconds
Seconds
PU
PU
Seconds
Seconds
Seconds
Seconds
PU
Description
I Type of input signal. Typical Value = rotorAngularFrequencyDeviation
PSS gain
Transducer time constant
Washout time constant
PSS signal conditioning frequency filter constant
PSS signal conditioning frequency filter constant
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Maximum PSS output
Minimum PSS output
Notes
Equivalent model in CIM/CGMES:
- PssIEEE1A
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16
PSS – PSS1A CIM/CGMES
Single input power system PSS. It is a modified version in order to allow representation of
various vendors' implementations on PSS type 1A.
Parameters
NAME
A1
A2
A3
A4
A5
A6
A7
A8
KD
KS
T1
T2
T3
T4
T5
T6
TDELAY
VCL
VCU
VRMAX
VRMIN
SWS1
Type
pu
pu
pu
pu
pu
pu
pu
pu
Boolean
pu
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
pu
pu
pu
pu
enum
Description
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Selector, if KD=1 the
is used, else it not is used
PSS gain
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Washout time constant
Transducer time constant
Time constant
PSS input cutoff threshold
PSS input cutoff threshold
Maximum PSS output
Minimum PSS output
Input switch control
* Input signal type. In Dynamics modelling, commonly represented by j parameter
* Description pag. 6
Notes
Equivalent model in CIM/CGMES:
- Pss1A
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17
PSS - PSS2A
IEEE Dual-Input PSS Model
Parameters
NAME
Type
SWS1
enum
SWS2
enum
TW1
TW2
TW3
TW4
TW6
TW7
T1
T2
T3
T4
T8
T9
T10
T11
KS1
KS2
KS3
VSTMAX
VSTMIN
VSI1MAX
VSI1MIN
VSI2MAX
VSI2MIN
M
N
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
PU
PU
PU
PU
PU
Integer
Integer
Parameters Range:
1.5 ≤ TW1 ≤ 15
1.5 ≤ TW2 ≤ 15
1.5 ≤ TW3 ≤ 15
Description
Input 1, switch control
1 = W-1, Rotor speed deviation (pu) is used as input
2 = Frequency deviation at bus (pu) is used as input (Currently in NEPLAN as W-1, no
remote frequency is implemented, but reserved for futur version)
3 = P, Electrical active power (pu) is used as input
4 = PMECH, Acceleration power (pu). is used as input
5 = VT, Bus Voltage (pu) is used as input
6 = dVT, Derivative of pu bus voltage. is used as input
Input 2, switch control
1 = W-1, Rotor speed deviation (pu) is used as input
2 = Frequency deviation at bus (pu) is used as input (Currently in NEPLAN as W-1, no
remote frequency is implemented, but reserved for futur version)
3 = P, Electrical active power (pu) is used as input
4 = PMECH, Acceleration power (pu). is used as input
5 = VT, Bus Voltage (pu) is used as input
6 = dVT, Derivative of pu bus voltage. is used as input
First washout on signal 1
Second washout on signal 1
First washout on signal 2
Second washout on signal 2
Time constant on signal 1
Time constant on signal 2
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead of ramp tracking filter
Lag of ramp tracking filter
Lead/lag time constant
Lead/lag time constant
PSS gain
Gain on signal 2
Gain on signal 2 input before ramp-tracking filter
PSS output max limit
PSS output min limit
Input signal #1 max limit
Input signal #1 min limit
Input signal #2 max limit
Input signal #2 min limit
Denominator order of ramp tracking filter
Order of ramp tracking filter
0.02 < T9 < 2.0
0.02 ≤ T1 ≤ 2.0
0.02 ≤ T3 ≤ 2.0
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18
1.5 ≤ TW4 ≤ 15
0.02 < T6
0.02 < T7
0.02 < T8 ! 2
0.02 ≤ T2 ≤ 6.0
0.02 ≤ T4 ≤ 6.0
0 < VSTMAX < 0.99
-0.3 ≤ VSTMIN ≤ 0
Notes
Switch SWS1 (input signal 1):
If SWS1 = 1
W-1, Rotor speed deviation (pu) is used as input 1
If SWS1 = 2
Frequency deviation at bus (pu) is used as input 1
If SWS1 = 3
P, Electrical active power (pu) is used as input 1
If SWS1 = 4
PMECH, Acceleration power (pu). is used as input 1
If SWS1 = 5
VT, Bus Voltage (pu) is used as input 1
If SWS1 = 6
dVT, Derivative of pu bus voltage. is used as input 1
Switch SWS2 (input signal 2):
If SWS2 = 1
W-1, Rotor speed deviation (pu) is used as input 2
If SWS2 = 2
Frequency deviation at bus (pu) is used as input 2
If SWS2 = 3
P, Electrical active power (pu) is used as input 2
If SWS2 = 4
PMECH, Acceleration power (pu). is used as input 2
If SWS2 = 5
VT, Bus Voltage (pu) is used as input 2
If SWS2 = 6
dVT, Derivative of pu bus voltage. is used as input 2
Model Notes:
Ramp Tracking Filter
M≥0
N≥0
M*N≤8
If M = 0, then N is set equal to 0
To bypass: set M = N = 0
Washouts
To bypass second washout, first signal: set TW2 = 0
To bypass second washout, second signal: set TW4 = 0
Transducers
To bypass first signal transducer: set T6 = 0
To bypass second signal transducer: set T7 = 0
Lead-Lags
To bypass first lead-lag: set T1 = T2 = 0
To bypass second lead-lag: set T3 = T4 = 0
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
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19
PSS - PSS2B
Modified IEEE Dual-Input PSS Model
Parameters
NAME
SWS1
SWS2
TW1
TW2
TW3
TW4
TW6
TW7
T1
T2
T3
T4
T8
T9
T10
T11
KS1
KS2
KS3
KS4
VSTMAX
VSTMIN
VSI1MAX
VSI1MIN
VSI2MAX
VSI2MIN
AA
TA
TB
M
N
* Description pag. 6
Type
enum
enum
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
Seconds
Seconds
Integer
Integer
Parameters Range:
1.5 ≤ TW1 ≤ 15
1.5 ≤ TW2 ≤ 15
1.5 ≤ TW3 ≤ 15
1.5 ≤ TW4 ≤ 15
0.02 < T6
0.02 < T7
Description
* Type of input signal #1. Typical Value = rotorSpeed
* Type of input signal #2. Typical Value = generatorElectricalPower
First washout on signal 1
Second washout on signal 1
First washout on signal 2
Second washout on signal 2
Time constant on signal 1
Time constant on signal 2
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead of ramp tracking filter
Lag of ramp tracking filter
Lead/lag time constant
Lead/lag time constant
PSS gain
Gain on signal 2
Gain on signal 2 input before ramp-tracking filter
Gain on signal 2 input after ramp-tracking filter
PSS output max limit
PSS output min limit
Input signal #1 max limit
Input signal #1 min limit
Input signal #2 max limit
Input signal #2 min limit
Numerator constant
Lead/lag time constant
Lead/lag time constant
Denominator order of ramp tracking filter
Order of ramp tracking filter
0.02 < T9 < 2.0
0.02 ≤ T1 ≤ 2.0
0.02 ≤ T3 ≤ 2.0
0.02 ≤ T2 ≤ 6.0
0.02 ≤ T4 ≤ 6.0
0 < VSTMAX < 0.99
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
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20
0.02 < T8
-0.3 ≤ VSTMIN ≤ 0
Notes
Ramp Tracking Filter
M≥0
N≥0
M*N≤8
If M = 0, then N is set equal to 0
To bypass: set M = N = 0
Equivalent model in CIM/CGMES:
- Pss2B
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
21
PSS - PSS2B CIM/CGMES
Modified IEEE Dual-Input PSS Model
Parameters
NAME
SWS1
SWS2
TW1
TW2
TW3
TW4
TW6
TW7
T1
T2
T3
T4
T8
T9
T10
T11
KS1
KS2
KS3
KS4
VSTMAX
VSTMIN
VSI1MAX
VSI1MIN
VSI2MAX
VSI2MIN
M
N
* Description pag. 6
Type
enum
enum
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
Integer
Integer
Description
* Type of input signal #1. Typical Value = rotorSpeed
* Type of input signal #2. Typical Value = generatorElectricalPower
First washout on signal 1
Second washout on signal 1
First washout on signal 2
Second washout on signal 2
Time constant on signal 1
Time constant on signal 2
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead of ramp tracking filter
Lag of ramp tracking filter
Lead/lag time constant
Lead/lag time constant
PSS gain
Gain on signal 2
Gain on signal 2 input before ramp-tracking filter
Gain on signal 2 input after ramp-tracking filter
PSS output max limit
PSS output min limit
Input signal #1 max limit
Input signal #1 min limit
Input signal #2 max limit
Input signal #2 min limit
Denominator order of ramp tracking filter
Order of ramp tracking filter
Notes
Ramp Tracking Filter
M≥0
N≥0
M*N≤8
If M = 0, then N is set equal to 0
To bypass: set M = N = 0
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
22
Equivalent model in CIM/CGMES:
- PssIEEE2B
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
23
PSS – PSS3B
IEEE Std 421.5-2005 type PSS3B power system PSS model.
Parameters
NAME
SWS1*
SWS2*
TW1
TW2
TW3
KS1
KS2
T1
T2
VSTMAX
VSTMIN
A1
A2
A3
A4
A5
A6
A7
A8
* Description pag. 6
Type
enum
enum
Seconds
Seconds
Seconds
PU
PU
Seconds
Seconds
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
Description
Type of input signal #1. Typical Value = generatorElectricalPower
Type of input signal #2. Typical Value = rotorSpeed
Washout time constant
Washout time constant
Washout time constant
Gain on signal 1
Gain on signal 2
Transducer time constant
Transducer time constant
PSS output max limit
PSS output MIN limit
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notch filter parameter
Notes
Equivalent model in CIM/CGMES:
- PssIEEE3B
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
24
PSS – PSS4B
IEEE Std 421.5-2005 type PSS2B power system PSS model.
Parameters
NAME
CLI
DLI
ALI
BLI
wLI1
BwLI1
wLi2
BwLI2
TH
AH
BH
M
BwH1
wH1
BwH2
wH2
KL1
KL2
KL11
KL17
KL
TL1
TL2
TL3
TL4
TL5
TL6
TL7
TL8
TL9
TL10
TL11
Tl12
VLMAX
Type
PU
PU
PU
PU
PU
PU
PU
PU
Seconds
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
Description
Transducer factor
Transducer factor
Transducer factor
Transducer factor
First notch filter factor
First notch filter factor
Second notch filter factor
Second notch filter factor
Transducer Time constant
Transducer factor
Transducer factor
Transducer factor
First notch filter factor
First notch filter factor
Second notch filter factor
Second notch filter factor
Low band differential filter gain
Low band differential filter gain
Low band first lead-lag blocks coefficient
Low band first lead-lag blocks coefficient
Low band gain
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band time constant
Low band output maximum limit
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
25
VLMIN
KI1
KI2
KI11
KI17
KI
TI1
TI2
TI3
TI4
TI5
TI6
TI7
TI8
TI9
TI10
TI11
TI12
VIMAX
VIMIN
KH1
KH2
KH11
KH17
TH1
TH2
TH3
TH4
TH5
TH6
TH7
TH8
TH9
TH10
TH11
TH12
KH
VHMAX
VHMIN
VSTMAX
VSTMIN
PU
PU
PU
PU
PU
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
PU
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
PU
Low band output minimum limit
Intermediate band differential filter gain
Intermediate band differential filter gain
Intermediate band first lead-lag blocks coefficient
Intermediate band first lead-lag blocks coefficient
Intermediate band gain
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band time constant
Intermediate band output maximum limit
Intermediate band output minimum limit
High band differential filter gain
High band differential filter gain
High band first lead-lag blocks coefficient
High band first lead-lag blocks coefficient
High band time constant
High band time constant
High band time constant
High band time constant
High band time constant
High band time constant
High band time constant
High band time constant
High band time constant
High band time constant
High band time constant
High band time constant
High band gain
High band output maximum limit
High band output minimum limit
PSS output maximum limit
PSS output minimum limit
Notes
Equivalent model in CIM/CGMES:
- PssIEEE4B
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
26
PSS – PSS5
Italian PSS
Parameters
NAME
Type
CTW2
Boolean
DEADBAND
ISFREQ
pu
Boolean
KF
KPE
KPSS
PMM
TL1
TL2
TL3
TL4
TPE
TW1
TW2
VADAT
pu
pu
pu
pu
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Boolean
VSMN
VSMX
pu
pu
Description
Selector for Second washout enabling, CTW2=1 (selector ON) second washout filter is
bypassed, else (selector OFF) second washout filter in use
PSS output dead band
Selector for Frequency/shaft speed input, ISFREQ=1 switch on speed, else switch on
frequency
Frequency/shaft speed input gain
Electric power input gain
PSS gain
Minimum power PSS enabling
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Lead/lag time constant
Electric power filter time constant
First WashOut
Second WashOut
Signal selector, if VADAT=1 the switch is closed (Generator Power is greater than
Pmin), else it is open (Pe is smaller than Pmin).
PSS output min limit
PSS output max limit
Notes
Equivalent model in CIM/CGMES:
- Pss5
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
27
PSS – PSSELIN2
Power system PSS typically associated with ExcELIN2 (though PssIEEE2B or Pss2B can also
be used)
Parameters
NAME
APSS
KS1
KS2
PPSS
PSSLIM
TS1
TS2
TS3
TS4
TS5
TS6
Type
pu
pu
pu
pu
pu
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Description
Coefficient
Gain
Gain
Coefficient, (>=0 and <=4), check on the picture
PSS limiter
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Notes
Equivalent model in CIM/CGMES:
- PssELIN2
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
28
PSS – PSSSH
Model for Siemens “H infinity” power system PSS with generator electrical power input.
Parameters
NAME
Type
Description
K
PU
Main gain
K0
K1
K2
K3
K4
TD
T1
T2
T3
T4
VSMAX
VSMIN
PU
PU
PU
PU
PU
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
Gain 0
Gain 1
Gain 2
Gain 3
Gain 4
Input time constant
Time constant 1
Time constant 2
Time constant 3
Time constant 4
Output maximum limit
Output minimum limit
Notes
Equivalent model in CIM/CGMES:
- PssSH
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
29
PSS – PSSSK
PSS Slovakian type – three inputs.
Parameters
NAME
K1
K2
K3
T1
T2
T3
T4
T5
T6
USSMAX
USSMIN
Type
PU
PU
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
Description
Power gain
Rotor speed deviation gain
Field current gain
Power Time Constant
Power Time Constant
Rotor speed deviation Time Constant
Rotor speed deviation Time Constant
Field current Time Constant
Field current Time Constant
Limiter
Limiter
Notes
Equivalent model in CIM/CGMES:
- PssSK
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
30
PSS – PTIST1
PTI Microprocessor-Based PSS type 1.
Parameters
NAME
DTF
DTP
DTC
M
TP
TF
K
T1
T2
T3
T4
Type
Seconds
Seconds
Seconds
PU
Seconds
Seconds
PU
Seconds
Seconds
Seconds
Seconds
Description
Time step frequency calculation
ime step related to activation of controls
Time step active power calculation
M=2*H
Time constant
Time constant
Gain
Time constant
Time constant
Time constant
Time constant
Notes
Equivalent model in CIM/CGMES:
- PssPTIST1
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
31
PSS – PTIST3
PTI Microprocessor-Based PSS type 3.
Parameters
NAME
Type
DTF
DTP
DTC
M
TP
TF
K
T1
T2
T3
T4
T5
T6
A0
A1
A2
B0
B1
B2
A3
A4
A5
B3
B4
B5
ATHRES
DL
AL
LTHRES
PMIN
ISW
Seconds
Seconds
Seconds
PU
Seconds
Seconds
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
PU
Boolean
NAV
NCL
NCR
PU
PU
PU
Description
Time step frequency calculation
ime step related to activation of controls
Time step active power calculation
M=2*H
Time constant
Time constant
Gain
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Filter coefficient
Limiter
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Filter coefficient
Threshold value above which output averaging will be bypassed (not used in NEPLAN)
Limiter
Limiter
Threshold value (not used in NEPLAN)
Limiter (not used in NEPLAN)
Digital/analog output switch (see block diagram)
0 = VPSS = VT*V14
1 = VPSS = limit(V11,-AL,AL)
Number of control outputs to average (not used in NEPLAN)
Number of counts at limit to active limit function (not used in NEPLAN)
mber of counts until reset after limit function is triggered (not used in NEPLAN)
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
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Notes
Some Parameters are not used currently in NEPLAN (ATHRES, LTHRES, PMIN, NAV, NCL,
NCR). These parameters describe the “Averaging Function”, “Limit Function” and “Tap
Selection Table”. The PTI manual is not clear about the exact use of these three functions.
Equivalent model in CIM/CGMES:
- PssPTIST3
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
33
PSS - STAB1
SPEED Sensititive Stabilizing Model
Parameters
NAME
K
T
T1
T2
T3
T4
HLIM
Type
PU
Seconds
Seconds
Seconds
Seconds
Seconds
PU
Description
Gain
Time constant
Time constant
Time constant
Time constant
Time constant
PSS output limit
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
34
PSS - STAB2A
Power Sensitive Stabilizing Unit (ASEA).
Parameters
NAME
K2
T2
K3
T3
K4
K5
T5
HLIM
Type
PU
Seconds
PU
Seconds
PU
PU
Seconds
PU
Description
Gain
Time constant
Gain
Time constant
Gain
Gain
Time constant
PSS output limit
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
35
PSS - STAB3
Power Sensitive Stabilizing Unit.
Parameters
NAME
TT
TX1
KX
TX2
VLIM
Type
Seconds
Seconds
PU
Seconds
PU
Description
Time constant
Time constant
Gain
Time constant
PSS output limit
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
36
PSS - STAB4
Power Sensitive PSS.
Parameters
NAME
TT
KX
TX2
TA
TX1
TB
TC
TD
TE
L1
L2
Type
Second
PU
Second
Second
Second
Second
Second
Second
Second
PU
PU
Description
Time constant
Gain
Time constant
Time constant
Reset time constant
Time constant
Time constant
Time constant
Time constant
Limiter
Limiter
Notes
Equivalent model in CIM/CGMES:
- PssSB4
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
37
PSS - STBSVC
WECC Supplementarry Signal for Static var Compensator
Parameters
NAME
Type
SWS1
enum
SWS2
enum
KS1
KS2
TS7
TS8
TS9
TS10
TS11
TS12
TS13
TS14
KS23
VSCS
PU
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
Description
Input 1, switch control
1 = PMECH, Accelerating power from remote machine (pu) is used as input 1
2 = P, Electrical power from a branch (pu) is used as input 1
Input 2, switch control
0 = No signal bus (pu) is used as input 2
1 = VT, Bus voltage (pu) is used as input 2
2 = VARs from SVC to system (pu) is used as input 2
3 = Current from SVC to system (pu). is used as input 2
Input 1 Gain
Input 2 gain
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Main gain
PSS output limit
Notes
Equivalent model in CIM/CGMES:
- No CIM/CGMES model
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
38
PSS - ST2CUT
Stabilizing Model with Dual-Input Signals
Parameters
NAME
Type
SWS1
enum
SWS2
enum
K1
T1
K2
T2
T3
T4
T5
T6
T7
T8
T9
T10
LSMAX
LSMIN
VCL
VCU
PU
Seconds
PU
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
Seconds
PU
PU
PU
PU
Parameters Range:
0 ≤ T1 ≤ 10
Description
Input 1, switch control
1 = W-1, Rotor speed deviation (pu) is used as input
2 = Frequency deviation at bus (pu) is used as input (Currently in NEPLAN as W-1, no
remote frequency is implemented, but reserved for futur version)
3 = P, Electrical active power (pu) is used as input
4 = PMECH, Acceleration power (pu). is used as input
5 = VT, Bus Voltage (pu) is used as input
6 = dVT, Derivative of pu bus voltage. is used as input
Input 2, switch control
1 = W-1, Rotor speed deviation (pu) is used as input
2 = Frequency deviation at bus (pu) is used as input (Currently in NEPLAN as W-1, no
remote frequency is implemented, but reserved for futur version)
3 = P, Electrical active power (pu) is used as input
4 = PMECH, Acceleration power (pu). is used as input
5 = VT, Bus Voltage (pu) is used as input
6 = dVT, Derivative of pu bus voltage. is used as input
Input 1 gain
Input 1 time constant
Input 2 gain
Input 2 time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
Time constant
PSS output maximum limit
PSS output minimum limit
Cutoff limiter
Cutoff limiter
0 ≤ T8 ≤ 10
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
39
0 ≤ T2 ≤ 10
0 < T3 ≤ 10
0.03 < T4 ≤ 10
0 ≤ T5 < 10
0 ≤ T6 < 2
0 ≤ T7 ≤ 10
0 ≤ T9 ≤ 10
0 ≤ T10 < 2
0 < LSMAX < 0.3
-0.3 < LSMIN < 0
0 ≤ VCU < 1.25
-0.1 ≤ VCL < 1.0
Notes
VT is the terminal voltage at bus
VT0 is the initial terminal voltage at bus
Equivalent model in CIM/CGMES:
- PssWECC
NEPLAN AG Oberwachtstrasse 2 CH 8700 Küsnacht ZH
Phone +41 44 914 36 66 Fax +41 44 991 19 71
www.neplan.ch
40