| Units: | - |
| Mode: | Input Only |
| Multi-band: | False |
| Default Value: | 0 |
| Validation Rule: | Any Value |
| Key Property: | No |
| Description: | Right hand side value over any custom period (000) |
Constraint RHS Custom defines the right-hand side (constant) for the constraint. Setting this property results in the set up of one constraint that will apply over the entire planning horizon. The inclusion/exclusion of periods in the constraint is controlled using the left-hand side coefficients alone. Thus this type of constraint can be used to model multi-annual constraints as well as constraint over any custom period of time that does not fit with the 'standard' interval/day/week/month/year constraint versions.
Example:
The following example defines a constraint on the fuel offtake of a generator that applies over a specific period of time; in this case a 'gas year' that is different to the calendar year.
| Membership | Property | Value | Unit | Date From | Date To |
|---|---|---|---|---|---|
| Constraint ( Max Gas 2010 ) | Sense | <= | - | ||
| Constraint ( Max Gas 2010 ) | RHS Custom | 6750 | - | ||
| Constraint ( Max Gas 2010 ). Generators ( Gas Plant ) | Fuel Offtake Coefficient | 1 | - | 1/07/2009 | 30/06/2010 |
NOTE: In most cases for RHS Day/Week/Month/Year/Custom, the RHS scalar is 1000. However, there are some exceptions where the RHS scalar is 1. The exceptions include all non-quantity constraints, all gas constraints, Maintenance Min Occurrence constraints, constraints related to Storages (with End Volume/End Level/Ramp Coefficient) / Waterways (with Ramp Coefficient) / Maintenances (with Start Hour Coefficient) / Generators (with Capacity Factor Coefficient or only defined interval Units Started/Units Shutdown/Units Generating/Operating Hours/Pump Operating Hours Coefficient), constraints using expansion, and constraints not using activities.
See also: