GovSteam1

Class Description

Steam turbine governor, based on the GovSteamIEEE1 (with optional deadband and nonlinear valve gain added).

Attributes

Name Type Description
db1 Frequency Intentional deadband width (db1). Unit = Hz. Typical value = 0.
db2 ActivePower Unintentional deadband (db2). Unit = MW. Typical value = 0.
eps Frequency Intentional db hysteresis (eps). Unit = Hz. Typical value = 0.
gv1 PU Nonlinear gain valve position point 1 (GV1). Typical value = 0.
gv2 PU Nonlinear gain valve position point 2 (GV2). Typical value = 0,4.
gv3 PU Nonlinear gain valve position point 3 (GV3). Typical value = 0,5.
gv4 PU Nonlinear gain valve position point 4 (GV4). Typical value = 0,6.
gv5 PU Nonlinear gain valve position point 5 (GV5). Typical value = 1.
gv6 PU Nonlinear gain valve position point 6 (GV6). Typical value = 0.
k PU Governor gain (reciprocal of droop) (K) (> 0). Typical value = 25.
k1 Float Fraction of HP shaft power after first boiler pass (K1). Typical value = 0,2.
k2 Float Fraction of LP shaft power after first boiler pass (K2). Typical value = 0.
k3 Float Fraction of HP shaft power after second boiler pass (K3). Typical value = 0,3.
k4 Float Fraction of LP shaft power after second boiler pass (K4). Typical value = 0.
k5 Float Fraction of HP shaft power after third boiler pass (K5). Typical value = 0,5.
k6 Float Fraction of LP shaft power after third boiler pass (K6). Typical value = 0.
k7 Float Fraction of HP shaft power after fourth boiler pass (K7). Typical value = 0.
k8 Float Fraction of LP shaft power after fourth boiler pass (K8). Typical value = 0.
mwbase ActivePower Base for power values (MWbase) (> 0). Unit = MW.
pgv1 PU Nonlinear gain power value point 1 (Pgv1). Typical value = 0.
pgv2 PU Nonlinear gain power value point 2 (Pgv2). Typical value = 0,75.
pgv3 PU Nonlinear gain power value point 3 (Pgv3). Typical value = 0,91.
pgv4 PU Nonlinear gain power value point 4 (Pgv4). Typical value = 0,98.
pgv5 PU Nonlinear gain power value point 5 (Pgv5). Typical value = 1.
pgv6 PU Nonlinear gain power value point 6 (Pgv6). Typical value = 0.
pmax PU Maximum valve opening (Pmax) (> GovSteam1.pmin). Typical value = 1.
pmin PU Minimum valve opening (Pmin) (>= 0 and < GovSteam1.pmax). Typical value = 0.
sdb1 Boolean Intentional deadband indicator.
true = intentional deadband is applied
false = intentional deadband is not applied.
Typical value = true.
sdb2 Boolean Unintentional deadband location.
true = intentional deadband is applied before point “A”
false = intentional deadband is applied after point “A”.
Typical value = true.
t1 Seconds Governor lag time constant (T1) (>= 0). Typical value = 0.
t2 Seconds Governor lead time constant (T2) (>= 0). Typical value = 0.
t3 Seconds Valve positioner time constant (T3) (> 0). Typical value = 0,1.
t4 Seconds Inlet piping/steam bowl time constant (T4) (>= 0). Typical value = 0,3.
t5 Seconds Time constant of second boiler pass (T5) (>= 0). Typical value = 5.
t6 Seconds Time constant of third boiler pass (T6) (>= 0). Typical value = 0,5.
t7 Seconds Time constant of fourth boiler pass (T7) (>= 0). Typical value = 0.
uc Float Maximum valve closing velocity (Uc) (< 0). Unit = PU / s. Typical value = -10.
uo Float Maximum valve opening velocity (Uo) (> 0). Unit = PU / s. Typical value = 1.
valve Boolean Nonlinear valve characteristic.
true = nonlinear valve characteristic is used
false = nonlinear valve characteristic is not used.
Typical value = true.

Relationships

Inherits from

Descendant classes

  • No descendant classes

Leaf/Root class

IsLeaf IsRoot
False False

Associations

None