blockIdentifyStage
Identify current chiller stage according to the proven on status of the chillers
Information
This subsequence is not directly specified in ASHRAE Guideline 36-2021 as it provides a side calculation about the generalization of the staging sequences for any number of chillers and stages provided by the user.
The subsequence outputs the current chiller stage index ySta according
to the current chillers proven on status uChi
and the given staging matrix staMat, which specifies which chillers
should be enabled at each stage.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | nSta | 3 | Number of chiller stages |
| Integer | nChi | 2 | Number of chillers |
| Integer[nSta,nChi] | staMat | {{1, 0}, {0, 1}, {1, 1}} | Staging matrix with chiller stage as row index and chiller as column index |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Controls.OBC.CDL.Interfaces.BooleanInput[nChi] | uChi | Vector of chiller proven on status: true=ON | |
| Buildings.Controls.OBC.CDL.Interfaces.IntegerOutput | ySta | Current stage index |
Revisions
-
May 3, 2023, by Jianjun Hu:
First implementation.