Fuel Constraints In Use Coefficient
| Units: | - |
| Mode: | Input Only |
| Multi-band: | False |
| Default Value: | 0 |
| Validation Rule: | Any Value |
| Key Property: | No |
| Description: | Boolean value (1 if the Fuel is in use, 0 otherwise) |
| Detail: |
Fuel Constraints In Use Coefficient is Boolean value (1 if the Fuel is in use, 0 otherwise). You can use this coefficient to place constraints on combinations of fuels used by a Generator when you also add filtering memberships of Generator objects into the Generators collection.
Example
Generator "X" uses Fuels "A", "B", "C", "D":
| Collection | Parent Name | Child Name |
|---|---|---|
| Generator.Fuels | X | A |
| Generator.Fuels | X | B |
| Generator.Fuels | X | C |
| Generator.Fuels | X | D |
Only the combinations "AB" and "CD" are valid. All other combinations must be excluded. To model this we formulate the following constraints:
| Class | Name |
|---|---|
| Constraint | X exclude AC |
| Constraint | X exclude AD |
| Constraint | X exclude BC |
| Constraint | X exclude BD |
| Constraint | X select 2 fuels |
| Collection | Parent Name | Child Name |
|---|---|---|
| Generator.Constraints | X exclude AC | X |
| Generator.Constraints | X exclude AD | X |
| Generator.Constraints | X exclude BC | X |
| Generator.Constraints | X exclude BD | X |
| Generator.Constraints | X select 2 fuels | X |
| Fuel.Constraints | X exclude AC | A |
| Fuel.Constraints | X exclude AC | C |
| Fuel.Constraints | X exclude AD | A |
| Fuel.Constraints | X exclude AD | D |
| Fuel.Constraints | X exclude BC | B |
| Fuel.Constraints | X exclude BC | C |
| Fuel.Constraints | X exclude BD | B |
| Fuel.Constraints | X exclude BD | D |
| Fuel.Constraints | X select 2 fuels | A |
| Fuel.Constraints | X select 2 fuels | B |
| Fuel.Constraints | X select 2 fuels | C |
| Fuel.Constraints | X select 2 fuels | D |
| Membership | Property | Value | Units | Band |
|---|---|---|---|---|
| Constraint ( X exclude AC ) | Sense | ≤ | - | 1 |
| Constraint ( X exclude AC ) | RHS | 1 | - | 1 |
| Constraint ( X exclude AD ) | Sense | ≤ | - | 1 |
| Constraint ( X exclude AD ) | RHS | 1 | - | 1 |
| Constraint ( X exclude BC ) | Sense | ≤ | - | 1 |
| Constraint ( X exclude BC ) | RHS | 1 | - | 1 |
| Constraint ( X exclude BD ) | Sense | ≤ | - | 1 |
| Constraint ( X exclude BD ) | RHS | 1 | - | 1 |
| Constraint ( X select 2 fuels ) | RHS | 2 | - | 1 |
| Constraint ( X exclude AC ).Fuels ( A ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X exclude AC ).Fuels ( C ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X exclude AD ).Fuels ( A ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X exclude AD ).Fuels ( D ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X exclude BC ).Fuels ( B ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X exclude BC ).Fuels ( C ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X exclude BD ).Fuels ( B ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X exclude BD ).Fuels ( D ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X select 2 fuels ).Fuels ( A ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X select 2 fuels ).Fuels ( B ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X select 2 fuels ).Fuels ( C ) | In Use Coefficient | 1 | - | 1 |
| Constraint ( X select 2 fuels ).Fuels ( D ) | In Use Coefficient | 1 | - | 1 |
See also: