This package contains base classes that are used to construct the main plant controller. Those include an interface class for the controller as well as blocks that implement the sequence of operation for each component of the plant.
| Name | Description |
|---|---|
| CoolingTowerLoop | Cooling tower loop control |
| Delay | Delay input |
| DirectHeatRecovery | Block controlling HRC in direct heat recovery mode |
| HoursToNextWarmup | Number of hours to next warmup period |
| IntegerArrayHold | Block that holds the value of an integer array for a given time |
| ModeCondenserLoop | Block that determines the condenser loop mode |
| ModeHeatRecoveryChiller | Block that computes the cascading cooling and direct HR switchover signals |
| PartialController | Interface class for plant controller |
| StageIndex | Block that computes the stage index out of staging signals |
| StagingCapacity | Total capacity at current stages times stage-up PLR limit |
| StagingPlant | Block that computes plant stage and command signals for chillers and HRC |
| StagingPump | Pump staging |
| TankChargeFraction | Tank charge fraction |
| TankChargeFractionRate | Rate of change of the tank charge fraction |
| TankCycle | Block that determines the tank cycle flag |
| ValveCondenserEvaporator | Controller for chiller and HRC condenser and evaporator valves |
| Validation | Package with validation models |