GovHydroPelton

Class Description

Detailed hydro unit - Pelton model. This model can be used to represent the dynamic related to water tunnel and surge chamber.
The DetailedHydroModelHydraulicSystem diagram, located under the GovHydroFrancis class, provides a schematic of the hydraulic system of detailed hydro unit models, such as Francis and Pelton.

Attributes

Name Type Description
ta Seconds Derivative gain (accelerometer time constant) (Ta) (>= 0). Typical value = 3.
ts Seconds Gate servo time constant (Ts) (>= 0). Typical value = 0,15.
tv Seconds Servomotor integrator time constant (Tv) (>= 0). Typical value = 0,3.
twnc Seconds Water inertia time constant (Twnc) (>= 0). Typical value = 1.
twng Seconds Water tunnel and surge chamber inertia time constant (Twng) (>= 0). Typical value = 3.
tx Seconds Electronic integrator time constant (Tx) (>= 0). Typical value = 0,5.
va Float Maximum gate opening velocity (Va). Unit = PU / s. Typical value = 0,06.
valvmax PU Maximum gate opening (ValvMax) (> GovHydroPelton.valvmin). Typical value = 1,1.
valvmin PU Minimum gate opening (ValvMin) (< GovHydroPelton.valvmax). Typical value = 0.
vav PU Maximum servomotor valve opening velocity (Vav). Typical value = 0,1.
vc Float Maximum gate closing velocity (Vc). Unit = PU / s. Typical value = -0,06.
vcv PU Maximum servomotor valve closing velocity (Vcv). Typical value = -0,1.
waterTunnelSurgeChamberSimulation Boolean Water tunnel and surge chamber simulation (Tflag).
true = enable of water tunnel and surge chamber simulation
false = inhibit of water tunnel and surge chamber simulation.
Typical value = false.
zsfc Length Head of upper water level with respect to the level of penstock (Zsfc). Unit = km. Typical value = 0,025.
av0 Area Area of the surge tank (AV0). Unit = m2. Typical value = 30.
av1 Area Area of the compensation tank (AV1). Unit = m2. Typical value = 700.
bp PU Droop (bp). Typical value = 0,05.
db1 Frequency Intentional dead-band width (DB1). Unit = Hz. Typical value = 0.
db2 Frequency Intentional dead-band width of valve opening error (DB2). Unit = Hz. Typical value = 0,01.
h1 Length Head of compensation chamber water level with respect to the level of penstock (H1). Unit = km. Typical value = 0,004.
h2 Length Head of surge tank water level with respect to the level of penstock (H2). Unit = km. Typical value = 0,040.
hn Length Rated hydraulic head (Hn). Unit = km. Typical value = 0,250.
kc PU Penstock loss coefficient (due to friction) (Kc). Typical value = 0,025.
kg PU Water tunnel and surge chamber loss coefficient (due to friction) (Kg). Typical value = 0,025.
qc0 PU No-load turbine flow at nominal head (Qc0). Typical value = 0,05.
qn VolumeFlowRate Rated flow (Qn). Unit = m3/s. Typical value = 250.
simplifiedPelton Boolean Simplified Pelton model simulation (Sflag).
true = enable of simplified Pelton model simulation
false = enable of complete Pelton model simulation (non-linear gain).
Typical value = true.
staticCompensating Boolean Static compensating characteristic (Cflag). It should be true if simplifiedPelton = false.
true = enable of static compensating characteristic
false = inhibit of static compensating characteristic.
Typical value = false.

Relationships

Inherits from

Descendant classes

  • No descendant classes

Leaf/Root class

IsLeaf IsRoot
False False

Associations

None