modelSpeed_primary_localDp
Validate sequence of controlling chilled water pump speed for primary-only plants with local DP sensor hardwired to the plant controller
Information
This example validates Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.ChilledWater.Subsequences.Speed_primary_localDp.
It shows the process of specifying the chilled water pump speed for a primary-only plant, with one local pressure sensor and two remote pressure sensors.
- Both pumps become enabled at 1 second. Thus, the pump speed setpoint becomes non-zero.
- From 1 second to 3 seconds, the measured pressure is greater than the setpoint. Thus, the pump speed is at the minimum (0.1).
- From 3 seconds to 4.5 seconds, the measured pressure becomes lower than the setpoint. Thus, the pump speed increases.
- From 4.5 seconds to 6.5 seconds, the measured pressure becomes greater than the setpoint. Thus, the pump speed becomes the minimum (0.1) again.
- After 6.5 seconds, the measured pressure becomes lower than the set point. The pump speed increases up to the maximum speed (1.0).
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Controls.OBC.ASHRAE.G36.Plants.Chillers.Pumps.ChilledWater.Subsequences.Speed_primary_localDp | chiPumSpe | Chilled water pump speed control based local pressure difference sensor |
Revisions
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April 4, 2019, by Jianjun Hu:
First implementation.