This component can represent one of five IEEE type thermal governor models:
GOV1: Approximate Mechanical-Hydraulic Controls
GOV2: Mechanical-Hydraulic Controls (GE)
GOV3: Electro-Hydraulic Controls (GE)
GOV4: DEH Controls (Westinghouse)
GOV5: NEI Parsons Controls
The inputs to this component are per-unit speed w, per-unit speed reference Wref. The output is the gate position z. The outputs are the control valve flow area Cv and on GOV2, 3 and 5, the intercept valve flow area Iv. Both of these outputs should be input to a corresponding Thermal Turbine.
More: |
Name for Identification |
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Optional text parameter for identification of the component. |
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Thermal Governor Model |
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Choice |
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Select GOV1, GOV2, GOV3, GOV4 or GOV5 as described in Thermal Governor Transfer Functions |
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Gov/Turb Status => 0-Initialize; 1-Normal |
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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 |
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CV Initial Value (Same as Turbine) |
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REAL |
Variable |
Initial Value of Control Valve Flow Area [pu] |
Gov1: Mechanical-Hydraulic Governor
NOTE: See Thermal Governor Transfer Functions for more details.
Dead Band Value |
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REAL |
Constant |
If the speed difference is less than the dead band value, then the 'error' input to the governor will be zero [pu] |
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Inverse of Droop (Kg) |
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REAL |
Constant |
Enter a value for the inverse of droop [pu] |
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Speed Relay Time Constant (TSR) |
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REAL |
Constant |
Enter a value for speed relay time constant [s] |
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Gate Servo Time Constant (TSM) |
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REAL |
Constant |
Enter a value for gate servo time constant [s] |
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Maximum Opening Rate (P_up) |
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REAL |
Constant |
Enter a value for maximum opening rate [pu/s] |
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Maximum Closing Rate (P_down) |
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REAL |
Constant |
Enter a value for maximum closing rate [pu/s] |
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Maximum Servo Position (Cmax) |
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REAL |
Constant |
Enter a value for the maximum servo position [pu] |
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Minimum Servo Position (Cmin) |
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REAL |
Constant |
Enter a value for the minimum servo position [pu] |
Gov2: Mechanical-Hydraulic (Ge) Governor : Section 1
NOTE: See Thermal Governor Transfer Functions for more details.
Dead Band Value |
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REAL |
Constant |
If the speed difference is less than the dead band value, then the 'error' input to the governor will be zero [pu] |
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Permanent Droop (R) |
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REAL |
Constant |
Enter a value for the inverse of droop [pu] |
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Speed Relay Time Constant (TSR) |
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REAL |
Constant |
Enter a value for permanent droop [s] |
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Gate Servo Time Constant (TSM) |
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REAL |
Constant |
Enter a value for gate servo time constant [s] |
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Maximum CV Opening Rate (P_up) |
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REAL |
Constant |
Enter a value for maximum Cv opening rate [pu/s] |
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Maximum CV Closing Rate (P_down) |
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REAL |
Constant |
Enter a value for maximum Cv closing rate [pu/s] |
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Maximum CV Servo Position (Cmax) |
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REAL |
Constant |
Enter a value for the maximum Cv servo position [pu] |
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Minimum CV Servo Position (Cmin) |
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REAL |
Constant |
Enter a value for the minimum Cv servo position [pu] |
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IV Path Accelerator Gain (K1) |
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REAL |
Constant |
Enter a value for the Iv path position gain [pu] |
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IV Path Position Gain (K2) |
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REAL |
Constant |
Enter a value for the Iv path accelerator bias [pu] |
Gov2: Mechanical-Hydraulic (Ge) Governor : Section 2
NOTE: See Thermal Governor Transfer Functions for more details.
IV Path Accelerator Bias (BIAS1) |
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REAL |
Constant |
Enter a value for the Iv path accelerator bias [pu] |
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IV Path Position Bias (BIAS2) |
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REAL |
Constant |
Enter a value for the Iv path position bias [pu] |
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Max. IV Accelerator Value (Amax) |
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REAL |
Constant |
Enter a value for the maximum Iv accelerator value [pu] |
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Min. IV Accelerator Value (Amin) |
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REAL |
Constant |
Enter a value for the minimum Iv accelerator value [pu] |
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IV Servo Time Constant (TSJ) |
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REAL |
Constant |
Enter a value for Iv servo time constant [s] |
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Maximum IV Opening Rate (I_up) |
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REAL |
Constant |
Enter a value for maximum Iv opening rate [pu/s] |
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Maximum IV Closing Rate (I_down) |
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REAL |
Constant |
Enter a value for maximum Iv closing rate [pu/s] |
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Maximum IV Servo Position (Imax) |
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REAL |
Constant |
Enter a value for the maximum Iv servo position [pu] |
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Minimum IV Servo Position (Imin) |
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REAL |
Constant |
Enter a value for the minimum Iv servo position [pu] |
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IV Initial Value: Variable (Same as Tur.) |
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REAL |
Variable |
Initial value of Intercept Valve Flow Area [pu] |
Gov3: Electro-Hydraulic (Ge) Governor : Section 1
NOTE: See Thermal Governor Transfer Functions for more details.
Dead Band Value |
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REAL |
Constant |
If the speed difference is less than the dead band value, then the 'error' input to the governor will be zero [pu] |
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Permanent Droop (R) |
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REAL |
Constant |
Enter a value for the inverse of droop [pu] |
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Max value of Load |
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REAL |
Constant |
Enter a value for the maximum value of load [pu] |
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Gate Servo Time Constant (TSM) |
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REAL |
Constant |
Enter a value for gate servo time constant [s] |
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Maximum CV Opening Rate (P_up) |
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REAL |
Constant |
Enter a value for maximum Cv opening rate [pu/s] |
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Maximum CV Closing Rate (P_down) |
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REAL |
Constant |
Enter a value for maximum Cv closing rate [pu/s] |
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Maximum CV Servo Position (Cmax) |
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REAL |
Constant |
Enter a value for the maximum Cv servo position [pu] |
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Minimum CV Servo Position (Cmin) |
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REAL |
Constant |
Enter a value for the minimum Cv servo position [pu] |
Gov3: Electro-Hydraulic (Ge) Governor : Section 2
NOTE: See Thermal Governor Transfer Functions for more details.
IV Path Position Gain (K2) |
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REAL |
Constant |
Enter a value for the Iv path position gain [pu] |
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IV Path Position Bias (BIAS2) |
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REAL |
Constant |
Enter a value for the Iv path position bias [pu] |
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IV Servo Time Constant (TSJ) |
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REAL |
Constant |
Enter a value for Iv servo time constant [s] |
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Maximum IV Opening Rate (I_up) |
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REAL |
Constant |
Enter a value for maximum Iv opening rate [pu/s] |
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Maximum IV Closing Rate (I_down) |
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REAL |
Constant |
Enter a value for maximum Iv closing rate [pu/s] |
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Maximum IV Servo Position (Imax) |
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REAL |
Constant |
Enter a value for the maximum Iv servo position [pu] |
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Minimum IV Servo Position (Imin) |
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REAL |
Constant |
Enter a value for the minimum Iv servo position [pu] |
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PLU Status => 0 = Off ; 1 = On |
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INTEGER |
Variable |
Enter 1 or 0 to control Power Load Unbalance (PLU) for fast valving:
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IV Initial Value: Variable (Same as Tur.) |
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REAL |
Variable |
Initial value of Intercept Valve Flow Area [pu] |
Gov4: Deh Controls (Westinghouse)
NOTE: See Thermal Governor Transfer Functions for more details.
Dead Band Value |
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REAL |
Constant |
If the speed difference is less than the dead band value, then the 'error' input to the governor will be zero [pu] |
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Permanent Droop (R) |
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REAL |
Constant |
Enter a value for the inverse of droop [pu] |
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Speed Relay Lag Time Constant (T1) |
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REAL |
Constant |
Enter a value for speed relay lag time constant [s] |
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Speed Relay Lead Time Constant (T2) |
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REAL |
Constant |
Enter a value for speed relay lead time constant [s] |
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Gate Servo Time Constant (T3) |
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REAL |
Constant |
Enter a value for gate servo time constant [s] |
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Maximum Opening Rate (P_up) |
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REAL |
Constant |
Enter a value for maximum opening rate [pu/s] |
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Maximum Closing Rate (P_down) |
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REAL |
Constant |
Enter a value for maximum closing rate [pu/s] |
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Maximum Servo Position (Cmax) |
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REAL |
Constant |
Enter a value for the maximum servo position [pu] |
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Minimum Servo Position (Cmin) |
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REAL |
Constant |
Enter a value for the minimum servo position [pu] |
Gov5: Electro-Hydraulic (Parson's) Controls
NOTE: See Thermal Governor Transfer Functions for more details.
Transducer Time Constant (TR) |
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REAL |
Constant |
Enter a value for transducer time constant [s] |
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Dead Band Value |
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REAL |
Constant |
If the speed difference is less than the dead band value, then the 'error' input to the governor will be zero [pu] |
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Permanent Droop (R) |
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REAL |
Constant |
Enter a value for the inverse of droop [pu] |
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Threshold Speed Deviation for Overspeed |
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REAL |
Constant |
Enter a value for the speed deviation threshold for over-speed [pu] |
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Overspeed Droop |
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REAL |
Constant |
Enter a value for over-speed droop [pu] |
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Max value of Overspeed Limit |
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REAL |
Constant |
Enter a value for the maximum over-speed limit [pu] |
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Min value of Overspeed Limit |
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REAL |
Constant |
Enter a value for the minimum over-speed limit [pu] |
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Max Load Limit |
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REAL |
Constant |
Enter a value for the maximum load limit [pu] |
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CV Phase Compensation Lead Time T1 |
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REAL |
Constant |
Enter a value for the Cv phase compensation lead-time [s] |
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CV Phase Compensation Lag Time T2 |
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REAL |
Constant |
Enter a value for the Cv phase compensation lag-time [s] |
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Gate Servo Time Constant (TSM) |
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REAL |
Constant |
Enter a value for gate servo time constant [s] |
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Maximum CV Opening Rate (P_up) |
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REAL |
Constant |
Enter a value for maximum Cv opening rate [pu/s] |
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Maximum CV Closing Rate (P_down) |
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REAL |
Constant |
Enter a value for maximum Cv closing rate [pu/s] |
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Maximum CV Servo Position (Cmax) |
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REAL |
Constant |
Enter a value for the maximum Cv servo position [pu] |
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Minimum CV Servo Position (Cmin) |
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REAL |
Constant |
Enter a value for the minimum Cv servo position [pu] |
NOTE: See Thermal Governor Transfer Functions for more details.
IV Path Position Bias (IVOB) |
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REAL |
Constant |
Enter a value for the Iv path position bias [pu] |
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IV Phase Compensation Lead Time T3 |
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REAL |
Constant |
Enter a value for the Iv phase compensation lead-time [s] |
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IV Phase Compensation Lag Time T4 |
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REAL |
Constant |
Enter a value for the Iv phase compensation lag-time [s] |
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IV Servo Time Constant (TSJ) |
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REAL |
Constant |
Enter a value for Iv servo time constant [s] |
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Maximum IV Opening Rate (I_up) |
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REAL |
Constant |
Enter a value for maximum Iv opening rate [pu/s] |
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Maximum IV Closing Rate (I_down) |
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REAL |
Constant |
Enter a value for maximum Iv closing rate [pu/s] |
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Maximum IV Servo Position (Imax) |
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REAL |
Constant |
Enter a value for the maximum Iv servo position [pu] |
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Minimum IV Servo Position (Imin) |
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REAL |
Constant |
Enter a value for the minimum Iv servo position [pu] |
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IV Initial Value: Variable (Same as Tur.) |
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REAL |
Variable |
Initial value of Intercept Valve Flow Area [pu] |