modelArrayVariable
Fan array - Variable speed
Extends from Buildings.Templates.Components.Interfaces.PartialFan.
Information
This is a model for a parallel arrangement of identical variable speed fans (or fan array).
-
All fans are commanded On with the same Boolean signal
y1(VFD Run). -
The speed of all fans is modulated with the same
fractional speed signal
y(real).
y = 0corresponds to 0 Hz.y = 1corresponds to the maximum speed set in the VFD. -
A unique status signal
y1_actual(Boolean) is returned.
y1_actual = truemeans that all fans are On.
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Fluid.Movers.SpeedControlled_y | fan | Fan array | |
| Buildings.Controls.OBC.CDL.Conversions.BooleanToReal | sigSta | Start/stop signal | |
| Buildings.Controls.OBC.CDL.Reals.Multiply | sigCon | Resulting control signal | |
| Buildings.Controls.OBC.CDL.Reals.GreaterThreshold | evaSta | Evaluate fan status | |
| Fluid.BaseClasses.MassFlowRateMultiplier | mulInl | Flow rate multiplier | |
| Fluid.BaseClasses.MassFlowRateMultiplier | mulOut | Flow rate multiplier | |
| Buildings.Templates.Components.Controls.MultipleCommands | conCom | Convert command signal | |
| Buildings.Controls.OBC.CDL.Reals.Multiply | pow | Compute input power | |
| Buildings.Controls.OBC.CDL.Routing.BooleanScalarReplicator | rep | Replicate |
Revisions
-
September 26, 2023, by Antoine Gautier:
Refactored with flow rate multiplier.
This is for #3536. -
November 18, 2022, by Antoine Gautier:
First implementation.