modelActuatorSignal

Partial model that implements the filtered opening for valves and dampers

Information

This model implements the filter that is used to approximate the travel time of the actuator. Models that extend this model use the signal y_actual to obtain the current position of the actuator.

The filter order can be changed to modify the transient response of the actuator.

See IBPSA.Fluid.Actuators.UsersGuide for a description of the filter.

Parameters

TypeNameDefaultDescription
Dynamics › Filtered opening
Booleanuse_inputFiltertrue= true, if opening is filtered with a 2nd order CriticalDamping filter
Modelica.SIunits.TimeriseTime120Rise time of the filter (time to reach 99.6 % of an opening step)
Integerorder2Order of filter
Modelica.Blocks.Types.InitinitModelica.Blocks.Types.Init.InitialOutputType of initialization (no init/steady state/initial state/initial output)
Realy_start1Initial value of output

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputyActuator position (0: closed, 1: open)
Modelica.Blocks.Interfaces.RealOutputy_actualActual valve position

Revisions

  • February 16, 2018, by Filip Jorissen:
    Propagated parameter order.
    This is for #891.
  • March 24, 2017, by Michael Wetter:
    Renamed filteredInput to use_inputFilter.
    This is for #665.
  • February 14, 2012 by Michael Wetter:
    First implementation.