This component models a standard IEEE type exciter. All input parameters are either entered in seconds (time constants) or per-unit (all other inputs). The various external inputs and outputs are described below:
Inputs:
Ef0: This input defines the output field voltage to the machine during the initialization period. Ef0 can be either defined by the user or can be defined from within the attached synchronous machine (through a Wire).
[VT/IT]: This input is a 3-element array and receives its data from the attached synchronous machine (provided that the machine is set to output this data). VT is the RMS terminal voltage. IT is the synchronous machine terminal current and is complex (i.e. has a real and imaginary component). The real component of IT is in phase with VT and the imaginary component of IT is in quadrature (lagging is positive) with VT.
Vref: This input defines the voltage reference for the synchronous machine terminals. The value can be derived from a number of different components, which might include a slider, a real constant component or some other signal.
VS: This input is provided only when using the exciter with a power system stabilizer.
If: This parameter defines the field current generated from the machine model which may be passed to the exciter through a datawire. It may be applied within the exciter model for saturation and/or compensation.
Outputs:
Ef: This output is the computed field voltage applied directly to synchronous machine. A Wire may be used to make the connection.
Vref0: This output is the initialized value of the reference voltage Vref and can be applied at the users discretion.
More: |
Static Exciter Type |
|
Choice |
|
Select ST1A, ST2A, ST3A, ST4B, ST5B, ST6B or ST7B as described in Static Exciter Transfer Functions |
|
|
|
|
|
Exciter Status => 0-Initialize;1-Normal |
|
INTEGER |
Variable |
A variable name can be used. This variable can come from Output Variables for Controller Initialization section of the Synchronous Machine input parameters |
|
|
|
|
|
Output Internally Computed Initial Vref? |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
Load Compensating Resistance (Rc) |
|
REAL |
Constant |
Enter the load compensating resistance. See Load Compensation for more details [pu] |
|
|
|
|
|
Load Compensating Reactance (Xc) |
|
REAL |
Constant |
Enter the load compensating reactance. See Load Compensation for more details [pu] |
|
|
|
|
|
Transducer Time Constant (Tr) |
|
REAL |
Constant |
Enter the transducer time constant. See Load Compensation for more details [s] |
|
|
|
|
|
Is There a Stabilizer? |
|
Choice |
|
Select Yes or No |
ST1A: Forward Lead-Lag Parameters
NOTE: See Static Exciter Transfer Functions for more details.
Stabilizer Input Signal? |
|
Choice |
|
Select On Regulator or On Exciter |
|
|
|
|
|
Under Exc. Limit Input Signal? |
|
Choice |
|
Select None, Input, After Lim or Output |
|
|
|
|
|
Over Exc. Limit Input Signal? |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
1st Lead Time Constant (TC) |
|
REAL |
Constant |
Enter a value for the 1st lead time constant [s] |
|
|
|
|
|
1st Lag Time Constant (TB) |
|
REAL |
Constant |
Enter a value for the 1st lag time constant [s] |
|
|
|
|
|
2nd Lead Time Constant (TC1) |
|
REAL |
Constant |
Enter a value for the 2nd lead time constant [s] |
|
|
|
|
|
2nd Lag Time Constant (TB1) |
|
REAL |
Constant |
Enter a value for the 2nd lag time constant [s] |
ST1A: Feedback & Regulator Parameters
NOTE: See Static Exciter Transfer Functions for more details.
Rate Feedback Gain (KF) |
|
REAL |
Constant |
Enter a value for the rate feedback gain [pu] |
|
|
|
|
|
Rate Feedback Time Constant (TF) |
|
REAL |
Constant |
Enter a value for the rate feedback time constant [s] |
|
|
|
|
|
Regulator Gain (KA) |
|
REAL |
Constant |
Enter a value for the regulator gain [pu] |
|
|
|
|
|
Regulator Time Constant (TA) |
|
REAL |
Constant |
Enter a value for the regulator time constant [s] |
|
|
|
|
|
Max Reg. Output (VAMAX) |
|
REAL |
Constant |
Enter a value for the maximum regulator output [pu] |
|
|
|
|
|
Min Reg. Output (VAMIN) |
|
REAL |
Constant |
Enter a value for the minimum regulator output [pu] |
NOTE: See Static Exciter Transfer Functions for more details.
Exct. Output Current Limit Refer. (ILR) |
|
REAL |
Constant |
Enter a value for the exciter output current limit reference [pu] |
|
|
|
|
|
Exct. Output Current Limit Gain (KLR) |
|
REAL |
Constant |
Enter a value for the exciter output current limit gain [pu] |
|
|
|
|
|
Maximum Field Voltage (VRMAX) |
|
REAL |
Constant |
Enter a value for the maximum field voltage [pu] |
|
|
|
|
|
Minimum Field Voltage (VRMIN) |
|
REAL |
Constant |
Enter a value for the minimum field voltage [pu] |
|
|
|
|
|
Exciter Voltage Supply |
|
Choice |
|
Select Bus Fed or Independent |
|
|
|
|
|
Field Current Commutating Imp. (KC) |
|
REAL |
Constant |
Enter a value for the field current commutating impedance [pu] |
|
|
|
|
|
Under Excitation Limiter Input (VUEL) |
|
REAL |
Variable |
Enter a value for the under excitation limiter input [pu] |
|
|
|
|
|
Over Excitation Limiter Input (VOEL) |
|
REAL |
Variable |
Enter a value for the over excitation limiter input [pu] |
|
|
|
|
|
Upper Limit on Error Signal (VIMAX) |
|
REAL |
Constant |
Enter a value for the upper limit on the error signal [pu] |
|
|
|
|
|
Lower Limit on Error Signal (VIMIN) |
|
REAL |
Constant |
Enter a value for the lower limit on the error signal [pu] |
ST2A: Feedback & Regulator Parameters
NOTE: See Static Exciter Transfer Functions for more details.
Rate Feedback Gain (KF) |
|
REAL |
Constant |
Enter a value for the rate feedback gain [pu] |
|
|
|
|
|
Rate Feedback Time Constant (TF) |
|
REAL |
Constant |
Enter a value for the rate feedback time constant [s] |
|
|
|
|
|
Under Exc. Limit Input Signal? |
|
Choice |
|
Select None, Summation or HV Gate |
|
|
|
|
|
Regulator Gain (KA) |
|
REAL |
Constant |
Enter a value for the regulator gain [pu] |
|
|
|
|
|
Regulator Time Constant (TA) |
|
REAL |
Constant |
Enter a value for the regulator time constant [s] |
|
|
|
|
|
Max Reg. Output (VRMAX) |
|
REAL |
Constant |
Enter a value for the maximum regulator output [pu] |
|
|
|
|
|
Min Reg. Output (VRMIN) |
|
REAL |
Constant |
Enter a value for the minimum regulator output [pu] |
ST2A: Exciter & Compounding Parameters
NOTE: See Static Exciter Transfer Functions for more details.
Exciter Time Constant (TE) |
|
REAL |
Constant |
Enter a value for the exciter time constant [s] |
|
|
|
|
|
Exct. Constant Related to Field (KE) |
|
REAL |
Constant |
Enter a value for the exciter constant related to field [pu] |
|
|
|
|
|
Max Exciter Output Voltage (EFDMAX) |
|
REAL |
Constant |
Enter a value for the maximum exciter output voltage [pu] |
|
|
|
|
|
Under Excitation Limiter Input (VUEL) |
|
REAL |
Variable |
Enter a value for the under excitation limiter input [pu] |
|
|
|
|
|
Compounding Circuit Voltage Multiplier (KP) |
|
REAL |
Constant |
Enter a value for the compounding circuit voltage multiplier [pu] |
|
|
|
|
|
Compounding Circuit Current. Multiplier (KI) |
|
REAL |
Constant |
Enter a value for the compounding circuit current multiplier [pu] |
|
|
|
|
|
Rectifier Loading Factor (KC) |
|
REAL |
Constant |
Enter a value for the rectifier loading factor [pu] |
ST3A: Forward & Regulator Parameters
NOTE: See Static Exciter Transfer Functions for more details.
Under Exc. Limit Input Signal? |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
Lead Time Constant (TC) |
|
REAL |
Constant |
Enter a value for the lead time constant [s] |
|
|
|
|
|
Lag Time Constant (TB) |
|
REAL |
Constant |
Enter a value for the lag time constant [s] |
|
|
|
|
|
Upper Limit on Error Signal (VIMAX) |
|
REAL |
Constant |
Enter a value for the upper limit on the error signal [pu] |
|
|
|
|
|
Lower Limit on Error Signal (VIMIN) |
|
REAL |
Constant |
Enter a value for the lower limit on the error signal [pu] |
|
|
|
|
|
Regulator Gain (KA) |
|
REAL |
Constant |
Enter a value for the regulator gain [pu] |
|
|
|
|
|
Regulator Time Constant (TA) |
|
REAL |
Constant |
Enter a value for the regulator time constant [s] |
|
|
|
|
|
Maximum Regulator Output (VRMAX) |
|
REAL |
Constant |
Enter a value for the maximum regulator output [pu] |
|
|
|
|
|
Minimum Regulator Output (VRMIN) |
|
REAL |
Constant |
Enter a value for the minimum regulator output [pu] |
|
|
|
|
|
Under Excitation Limiter Input (VUEL) |
|
REAL |
Variable |
Enter a value for the under excitation limiter input [pu] |
ST3A: Inner Loop Field Regulator
NOTE: See Static Exciter Transfer Functions for more details.
Field Inner Loop Time Constant (TM) |
|
REAL |
Constant |
Enter a value for the field inner loop time constant [s] |
|
|
|
|
|
Field Inner Loop Gain Constant (KM) |
|
REAL |
Constant |
Enter a value for the field inner loop gain constant [pu] |
|
|
|
|
|
Field Inner Loop Max Output (VMMAX) |
|
REAL |
Constant |
Enter a value for the field inner loop maximum output [pu] |
|
|
|
|
|
Field Inner Loop Min Output (VMMIN) |
|
REAL |
Constant |
Enter a value for the field inner loop minimum output [pu] |
|
|
|
|
|
Field Inner Loop Feedback Gain (KG) |
|
REAL |
Constant |
Enter a value for the field inner loop feedback gain [pu] |
|
|
|
|
|
Field Inner Loop Fdb Max (VGMAX) |
|
REAL |
Constant |
Enter a value for the field inner loop feedback maximum [pu] |
|
|
|
|
|
Max Exciter Output Voltage (EFDMAX) |
|
REAL |
Constant |
Enter a value for the maximum exciter output voltage [pu] |
NOTE: See Static Exciter Transfer Functions for more details.
Mag of Compounding Circuit Voltage Multiplier (|KP|) |
|
REAL |
Constant |
Enter a value for the magnitude of the compounding circuit voltage multiplier [pu] |
|
|
|
|
|
Angle of Compounding Circuit Voltage Multiplier (THETA_p) |
|
REAL |
Constant |
Enter a value for the angle of compounding circuit voltage multiplier [deg] |
|
|
|
|
|
Potential Source Reactance (XL) |
|
REAL |
Constant |
Enter a value for the potential source reactance [pu] |
|
|
|
|
|
Compounding Circuit Current. Multiplier (KI) |
|
REAL |
Constant |
Enter a value for the compounding circuit current multiplier [pu] |
|
|
|
|
|
Rectifier Loading Factor (KC) |
|
REAL |
Constant |
Enter a value for the rectifier loading factor [pu] |
NOTE: See Static Exciter Transfer Functions for more details.
Under Exc. Limit Input Signal? |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
Over Exc. Limit Input Signal? |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
Regulator Proportional Gain (KPR) |
|
REAL |
Constant |
Enter a value for the regulator proportional gain [pu] |
|
|
|
|
|
Regulator Integral Gain (KIR) |
|
REAL |
Constant |
Enter a value for the regulator integral gain [pu] |
|
|
|
|
|
Maximum Regulator Output (VRMAX) |
|
REAL |
Constant |
Enter a value for the maximum regulator output [pu] |
|
|
|
|
|
Minimum Regulator Output (VRMIN) |
|
REAL |
Constant |
Enter a value for the minimum regulator output [pu] |
|
|
|
|
|
Regulator Time Constant (TA) |
|
REAL |
Constant |
Enter a value for the regulator time constant [s] |
ST4B: Inner Loop Field Regulator
NOTE: See Static Exciter Transfer Functions for more details.
Inner Loop Integral Gain (KIM) |
|
REAL |
Constant |
Enter a value for the inner loop integral gain [pu] |
|
|
|
|
|
Inner Loop Proportional Gain (KPM) |
|
REAL |
Constant |
Enter a value for the inner loop proportional gain [pu] |
|
|
|
|
|
Field Inner Loop Max output (VMMAX) |
|
REAL |
Constant |
Enter a value for the field inner loop maximum output [pu] |
|
|
|
|
|
Field Inner Loop Min output (VMMIN) |
|
REAL |
Constant |
Enter a value for the field inner loop minimum output [pu] |
|
|
|
|
|
Field Inner Loop Feedback Gain (KG) |
|
REAL |
Constant |
Enter a value for the field inner loop feedback gain [pu] |
NOTE: See Static Exciter Transfer Functions for more details.
Mag of Compounding Circuit Voltage Multiplier (|KP|) |
|
REAL |
Constant |
Enter a value for the magnitude of the compounding circuit voltage multiplier [pu] |
|
|
|
|
|
Angle of Compounding Circuit Voltage Multiplier (THETA_p) |
|
REAL |
Constant |
Enter a value for the angle of compounding circuit voltage multiplier [deg] |
|
|
|
|
|
Potential Source Reactance (XL) |
|
REAL |
Constant |
Enter a value for the potential source reactance [pu] |
|
|
|
|
|
Compounding Circuit Current. Multiplier (KI) |
|
REAL |
Constant |
Enter a value for the compounding circuit current multiplier [pu] |
|
|
|
|
|
Rectifier Loading Factor (KC) |
|
REAL |
Constant |
Enter a value for the rectifier loading factor [pu] |
|
|
|
|
|
Max Exc. Available Voltage (VBMAX) |
|
REAL |
Constant |
Enter a value for the maximum exciter available voltage [pu] |
|
|
|
|
|
Under Excitation Limiter Input (VUEL) |
|
REAL |
Variable |
Enter a value for the under excitation limiter input [pu] |
|
|
|
|
|
Over Excitation Limiter Input (VOEL) |
|
REAL |
Variable |
Enter a value for the over excitation limiter input [pu] |
ST5B: Forward Lead-Lag Parameters
NOTE: See Static Exciter Transfer Functions for more details.
Select Appropriate IEEE Std 421.5 |
|
Choice |
|
Select 1992 addendum or 2005 |
|
|
|
|
|
Under Exc. Limit Input Signal? |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
Over Exc. Limit Input Signal? |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
1st Lead Time Constant (TC1) |
|
REAL |
Constant |
Enter a value for the 1st lead time constant [s] |
|
|
|
|
|
1st Lag Time Constant (TB1) |
|
REAL |
Constant |
Enter a value for the 1st lag time constant [s] |
|
|
|
|
|
2nd Lead Time Constant (TC2) |
|
REAL |
Constant |
Enter a value for the 2nd lead time constant [s] |
|
|
|
|
|
2nd Lag Time Constant (TB2) |
|
REAL |
Constant |
Enter a value for the 2nd lag time constant [s] |
|
|
|
|
|
Underexc: 1st Lead Time Constant (TUC1) |
|
REAL |
Constant |
Enter a value for the underexcitation: 1st lead time constant [s] |
|
|
|
|
|
Underexc: 1st Lag Time Constant (TUB1) |
|
REAL |
Constant |
Enter a value for the underexcitation: 1st lag time constant [s] |
|
|
|
|
|
Underexc: 2nd Lead Time Constant (TUC2) |
|
REAL |
Constant |
Enter a value for the underexcitation: 2nd lead time constant [s] |
|
|
|
|
|
Underexc: 2nd Lag Time Constant (TUB2) |
|
REAL |
Constant |
Enter a value for the underexcitation: 2nd lag time constant [s] |
|
|
|
|
|
Overexc: 1st Lead Time Constant (TOC1) |
|
REAL |
Constant |
Enter a value for the overexcitation: 1st lead time constant [s] |
|
|
|
|
|
Overexc: 1st Lag Time Constant (TOB1) |
|
REAL |
Constant |
Enter a value for the overexcitation: 1st lag time constant [s] |
|
|
|
|
|
Overexc: 2nd Lead Time Constant (TOC2) |
|
REAL |
Constant |
Enter a value for the overexcitation: 2nd lead time constant [s] |
|
|
|
|
|
Overexc: 2nd Lag Time Constant (TOB2) |
|
REAL |
Constant |
Enter a value for the overexcitation: 2nd lag time constant [s] |
|
|
|
|
|
Regulator Gain (KR) |
|
REAL |
Constant |
Enter a value for the regulator gain [pu] |
|
|
|
|
|
Regulator Time Constant (T1) |
|
REAL |
Constant |
Enter a value for the regulator time constant [s] |
NOTE: See Static Exciter Transfer Functions for more details.
Maximum Field Voltage (VRMAX) |
|
REAL |
Constant |
Enter a value for the maximum field voltage [pu] |
|
|
|
|
|
Minimum Field Voltage (VRMIN) |
|
REAL |
Constant |
Enter a value for the minimum field voltage [pu] |
|
|
|
|
|
Exciter Voltage Supply |
|
Choice |
|
Select Bus Fed or Independent |
|
|
|
|
|
Field Current Commutating Imp. (KC) |
|
REAL |
Constant |
Enter a value for the field current commutating impedance [pu] |
|
|
|
|
|
Under Excitation Limiter Input (VUEL) |
|
REAL |
Variable |
Enter a value for the under excitation limiter input [pu] |
|
|
|
|
|
Over Excitation Limiter Input (VOEL) |
|
REAL |
Variable |
Enter a value for the over excitation limiter input [pu] |
NOTE: See Static Exciter Transfer Functions for more details.
Regulator Proportional Gain (KPA) |
|
REAL |
Constant |
Enter a value for the regulator proportional gain [pu] |
|
|
|
|
|
Regulator Integral Gain (KIA) |
|
REAL |
Constant |
Enter a value for the regulator integral gain [pu] |
|
|
|
|
|
Max. Regulator Output (VRMAX) |
|
REAL |
Constant |
Enter a value for the maximum regulator output [pu] |
|
|
|
|
|
Min. Regulator Output (VRMIN) |
|
REAL |
Constant |
Enter a value for the minimum regulator output [pu] |
|
|
|
|
|
Under Excitation Limit Input Signal? |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
Under Excitation Limiter Input (VUEL) |
|
REAL |
Variable |
Enter a value for the under excitation limiter input [pu] |
|
|
|
|
|
Over Excitation Limit Input Signal |
|
Choice |
|
Select No, or At 1st Summation Junction, or At 2nd Summation Junction |
|
|
|
|
|
Over Excitation Limiter Input (VOEL) |
|
REAL |
Variable |
Enter a value for the over excitation limiter input [pu] |
ST6B: Inner Loop Field Regulator
NOTE: See Static Exciter Transfer Functions for more details.
Field Inner Loop Max output (VRMAX) |
|
REAL |
Constant |
Enter a value for the field inner loop maximum output [pu] |
|
|
|
|
|
Field Inner Loop Min output (VRMIN) |
|
REAL |
Constant |
Enter a value for the field inner loop minimum output [pu] |
|
|
|
|
|
Field Inner Loop Feedback Gain (KG) |
|
REAL |
Constant |
Enter a value for the field inner loop feedback gain [pu] |
|
|
|
|
|
Field Inner Loop Time Constant (TG) |
|
REAL |
Constant |
Enter a value for the field inner loop time constant [s] |
|
|
|
|
|
Pre-control Gain Constant (KFF) |
|
REAL |
Constant |
Enter a value for the pre-control gain constant [pu] |
|
|
|
|
|
Forward Gain Constant (KM) |
|
REAL |
Constant |
Enter a value for the forward gain constant [pu] |
|
|
|
|
|
Current Limit Ref. (ILR) |
|
REAL |
Constant |
Enter a value for the current limit reference [pu] |
|
|
|
|
|
Current Limit Adjustment (KCI) |
|
REAL |
Constant |
Enter a value for the current limit adjustment [pu] |
|
|
|
|
|
Current Limit Gain (KLR) |
|
REAL |
Constant |
Enter a value for the current limit gain [pu] |
NOTE: See Static Exciter Transfer Functions for more details.
External Power for Rectifier? (VB) |
|
Choice |
|
Select Yes or No |
|
|
|
|
|
Mag of Compounding Circuit Voltage Multiplier (|KP|) |
|
REAL |
Constant |
Enter a value for the magnitude of the compounding circuit voltage multiplier [pu] |
|
|
|
|
|
Angle of Compounding Circuit Voltage Multiplier (THETA) |
|
REAL |
Constant |
Enter a value for the angle of compounding circuit voltage multiplier [deg] |
|
|
|
|
|
Potential Source Reactance (XL) |
|
REAL |
Constant |
Enter a value for the potential source reactance [pu] |
|
|
|
|
|
Compounding Circuit Current Multiplier (KI) |
|
REAL |
Constant |
Enter a value for the compounding circuit current multiplier [pu] |
|
|
|
|
|
Rectifier Loading Factor (KC) |
|
REAL |
Constant |
Enter a value for the rectifier loading factor [pu] |
|
|
|
|
|
Maximum Exciter Available Voltage (VBMAX) |
|
REAL |
Constant |
Enter a value for the maximum exciter available voltage [pu] |
NOTE: See Static Exciter Transfer Functions for more details.
Regulator Proportional Gain (KPA) |
|
REAL |
Constant |
Enter a value for the regulator proportional gain [pu] |
|
|
|
|
|
Max. Voltage Output (VMAX) |
|
REAL |
Constant |
Enter a value for the maximum voltage output [pu] |
|
|
|
|
|
Min. Voltage Output (VMIN) |
|
REAL |
Constant |
Enter a value for the minimum voltage output [pu] |
|
|
|
|
|
Under Excitation Limit Input Signal? |
|
Choice |
|
Select No, or At 1st summation point, or At 1st HV gate, or At 3rd HV gate |
|
|
|
|
|
Under Excitation Limiter Input (VUEL) |
|
REAL |
Variable |
Enter a value for the under excitation limiter input [pu] |
|
|
|
|
|
Over Excitation Limit Input Signal (VOEL1)? |
|
Choice |
|
Select No, or At 1st Summation Junction, or At 1st LV gate |
|
|
|
|
|
Over Excitation Limiter Input (VOEL1) |
|
REAL |
Variable |
Enter a value for the over excitation limiter input [pu] |
|
|
|
|
|
Over Excitation Limit Input Signal (VOEL2)? |
|
Choice |
|
Select No, or At Third LV Gate |
|
|
|
|
|
Over Excitation Limit Input Signal (VOEL2)? |
|
REAL |
Variable |
Enter a value for the over excitation limiter input [pu] |
|
|
|
|
|
Lead Time Constant (TC) |
|
REAL |
Constant |
Enter a value for the lead time constant [s] |
|
|
|
|
|
Lag Time Constant (TB) |
|
REAL |
Constant |
Enter a value for the lag time constant [s] |
|
|
|
|
|
Maximum Regulator Output (VRMAX) |
|
REAL |
Constant |
Enter a value for the maximum regulator output [pu] |
|
|
|
|
|
Minimum Regulator Output (VRMIN) |
|
REAL |
Constant |
Enter a value for the minimum regulator output [pu] |
NOTE: See Static Exciter Transfer Functions for more details.
Exciter Lead Time Constant (TG) |
|
REAL |
Constant |
Enter a value for the exciter lead time constant [s] |
|
|
|
|
|
Exciter Lag Time Constant (TF) |
|
REAL |
Constant |
Enter a value for the exciter lag time constant [s] |
|
|
|
|
|
Low Band Gain (KL) |
|
REAL |
Constant |
Enter a value for the low band gain [pu] |
|
|
|
|
|
High Band Gain (KH) |
|
REAL |
Constant |
Enter a value for the high band gain [pu] |
|
|
|
|
|
Feedback Gain (KIA) |
|
REAL |
Constant |
Enter a value for the feedback gain [pu] |
|
|
|
|
|
Feedback Time Constant (TIA) |
|
REAL |
Constant |
Enter a value for the feedback time constant [s] |