modelController

Validate control of minimum bypass valve
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Information

This example validates Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.MinimumFlowBypass.Controller. It demonstrates the bypass valve control to maintain the minimum chilled water flow through the chillers.

  • From 0.1 seconds to 0.7 seconds, there is no chilled water pump proven on (uChiWatPum=false). Thus, the bypass valve position setpoint is 1.
  • From 0.7 seconds to the end, there is chilled water pump proven on. When the measured chilled water flow is less than the setpoint, the bypass valve position setpoint is 1. After the measured chilled water flow is greater than the setpoint, the bypass valve setpoint gradually decreases.

Components

TypeNameDefaultDescription
Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.MinimumFlowBypass.ControllerminBypValConMinimum bypass valve position
Buildings.Controls.OBC.CDL.Reals.Sources.PulsechiFloSetMinimum flow setpoint

Revisions

  • March 28, 2019, by Jianjun Hu:
    First implementation.