GovGAST2

Class Description

Gas turbine.

Attributes

Name Type Description
a Float Valve positioner (A).
af1 PU Exhaust temperature parameter (Af1). Unit = PU temperature. Based on temperature in degrees C.
af2 PU Coefficient equal to 0,5(1-speed) (Af2).
b Float Valve positioner (B).
bf1 PU (Bf1). Bf1 = E(1 - W) where E (speed sensitivity coefficient) is 0,55 to 0,65 x Tr. Unit = PU temperature. Based on temperature in degrees C.
bf2 PU Turbine torque coefficient Khhv (depends on heating value of fuel stream in combustion chamber) (Bf2).
c Float Valve positioner (C).
cf2 PU Coefficient defining fuel flow where power output is 0% (Cf2). Synchronous but no output. Typically 0,23 x Khhv (23% fuel flow).
ecr Seconds Combustion reaction time delay (Ecr) (>= 0).
etd Seconds Turbine and exhaust delay (Etd) (>= 0).
k3 PU Ratio of fuel adjustment (K3).
k4 PU Gain of radiation shield (K4).
k5 PU Gain of radiation shield (K5).
k6 PU Minimum fuel flow (K6).
kf PU Fuel system feedback (Kf).
mwbase ActivePower Base for power values (MWbase) (> 0). Unit = MW.
t Seconds Fuel control time constant (T) (>= 0).
t3 Seconds Radiation shield time constant (T3) (>= 0).
t4 Seconds Thermocouple time constant (T4) (>= 0).
t5 Seconds Temperature control time constant (T5) (>= 0).
tc Temperature Temperature control (Tc). Unit = °F or °C depending on parameters Af1 and Bf1.
tcd Seconds Compressor discharge time constant (Tcd) (>= 0).
tf Seconds Fuel system time constant (Tf) (>= 0).
tmax PU Maximum turbine limit (Tmax) (> GovGAST2.tmin).
tmin PU Minimum turbine limit (Tmin) (< GovGAST2.tmax).
tr Temperature Rated temperature (Tr). Unit = °C depending on parameters Af1 and Bf1.
trate ActivePower Turbine rating (Trate). Unit = MW.
tt Seconds Temperature controller integration rate (Tt) (>= 0).
w PU Governor gain (1/droop) on turbine rating (W).
x Seconds Governor lead time constant (X) (>= 0).
y Seconds Governor lag time constant (Y) (> 0).
z Integer Governor mode (Z).
1 = droop
0 = isochronous.

Relationships

Inherits from

Descendant classes

  • No descendant classes

Leaf/Root class

IsLeaf IsRoot
False False

Associations

None