GovHydroFrancis
Class Description
Detailed hydro unit - Francis model. This model can be used to represent three types of governors. A schematic of the hydraulic system of detailed hydro unit models, such as Francis and Pelton, is provided in the DetailedHydroModelHydraulicSystem diagram.
Attributes
| Name | Type | Description |
|---|---|---|
| am | PU | Opening section <i>S</i><i><sub>EFF</sub></i> at the maximum efficiency (<i>Am</i>). Typical value = 0,7. |
| av0 | Area | Area of the surge tank (<i>A</i><i><sub>V0</sub></i>). Unit = m<sup>2</sup>. Typical value = 30. |
| av1 | Area | Area of the compensation tank (<i>A</i><i><sub>V1</sub></i>). Unit = m<sup>2</sup>. Typical value = 700. |
| bp | PU | Droop (<i>Bp</i>). Typical value = 0,05. |
| db1 | Frequency | Intentional dead-band width (<i>DB1</i>). Unit = Hz. Typical value = 0. |
| etamax | PU | Maximum efficiency (<i>EtaMax</i>). Typical value = 1,05. |
| governorControl | FrancisGovernorControlKind | Governor control flag (<i>Cflag</i>). Typical value = mechanicHydrolicTachoAccelerator. |
| h1 | Length | Head of compensation chamber water level with respect to the level of penstock (<i>H</i><i><sub>1</sub></i>). Unit = km. Typical value = 0,004. |
| h2 | Length | Head of surge tank water level with respect to the level of penstock (<i>H</i><i><sub>2</sub></i>). Unit = km. Typical value = 0,040. |
| hn | Length | Rated hydraulic head (<i>H</i><i><sub>n</sub></i>). Unit = km. Typical value = 0,250. |
| kc | PU | Penstock loss coefficient (due to friction) (<i>Kc</i>). Typical value = 0,025. |
| kg | PU | Water tunnel and surge chamber loss coefficient (due to friction) (<i>Kg</i>). Typical value = 0,025. |
| kt | PU | Washout gain (<i>Kt</i>). Typical value = 0,25. |
| qc0 | PU | No-load turbine flow at nominal head (<i>Qc0</i>). Typical value = 0,1. |
| qn | VolumeFlowRate | Rated flow (<i>Q</i><i><sub>n</sub></i>). Unit = m<sup>3</sup>/s. Typical value = 250. |
| ta | Seconds | Derivative gain (<i>Ta</i>) (>= 0). Typical value = 3. |
| td | Seconds | Washout time constant (<i>Td</i>) (>= 0). Typical value = 6. |
| ts | Seconds | Gate servo time constant (<i>Ts</i>) (>= 0). Typical value = 0,5. |
| twnc | Seconds | Water inertia time constant (<i>Twnc</i>) (>= 0). Typical value = 1. |
| twng | Seconds | Water tunnel and surge chamber inertia time constant (<i>Twng</i>) (>= 0). Typical value = 3. |
| tx | Seconds | Derivative feedback gain (<i>Tx</i>) (>= 0). Typical value = 1. |
| va | Float | Maximum gate opening velocity (<i>Va</i>). Unit = PU / s. Typical value = 0,06. |
| valvmax | PU | Maximum gate opening (<i>ValvMax</i>) (> GovHydroFrancis.valvmin). Typical value = 1,1. |
| valvmin | PU | Minimum gate opening (<i>ValvMin</i>) (< GovHydroFrancis.valvmax). Typical value = 0. |
| vc | Float | Maximum gate closing velocity (<i>Vc</i>). Unit = PU / s. Typical value = -0,06. |
| waterTunnelSurgeChamberSimulation | Boolean | Water tunnel and surge chamber simulation (<i>Tflag</i>). 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 (<i>Zsfc</i>). Unit = km. Typical value = 0,025. |
Relationships
Ancestors
Descendents
No descendent classes
Associations
None