Buildings.Controls.Continuous.Examples

Information

Extends from Buildings.BaseClasses.BaseIconExamples (Icon for Examples packages).

Package Content

Name	Description
NumberOfRequests	Example model
OffTimer	Example model
PIDHysteresis	Example model
PIDHysteresisTimer	Example model
SignalRanker	Example model

Buildings.Controls.Continuous.Examples.NumberOfRequests

Modelica definition

model NumberOfRequests "Example model"

  Buildings.Controls.Continuous.NumberOfRequests numReq(
    nin=2,
    threShold=0,
    kind=0);
  Modelica.Blocks.Sources.Sine sine(freqHz=2);
  Modelica.Blocks.Sources.Pulse pulse(period=0.25);
equation 
  connect(sine.y, numReq.u[1]);
  connect(pulse.y, numReq.u[2]);
end NumberOfRequests;

Buildings.Controls.Continuous.Examples.OffTimer

Modelica definition

model OffTimer "Example model"
  import Buildings;

  Modelica.Blocks.Sources.BooleanPulse booleanPulse(period=0.2);
  Buildings.Controls.Continuous.OffTimer offTim1;
  Buildings.Controls.Continuous.OffTimer offTim2;
  Modelica.Blocks.Logical.Not not1;
equation 
  connect(booleanPulse.y, offTim1.u);
  connect(booleanPulse.y, not1.u);
  connect(offTim2.u, not1.y);
end OffTimer;

Buildings.Controls.Continuous.Examples.PIDHysteresis

Modelica definition

model PIDHysteresis "Example model"
  import Buildings;

  Buildings.Controls.Continuous.PIDHysteresis con(
    pre_y_start=false,
    controllerType=Modelica.Blocks.Types.SimpleController.PI,
    yMin=0.3,
    Ti=600,
    Td=60);
  Modelica.Blocks.Sources.Constant TSet(k=273.15 + 40) "Set point";
  Modelica.Thermal.HeatTransfer.Components.HeatCapacitor cap(C=1000000, T(start=
         313.15, fixed=true));
  Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperature TBC;
  Modelica.Thermal.HeatTransfer.Components.ThermalConductor theCon(G=20);
  Modelica.Blocks.Math.Gain gain(k=2000);
  Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor temSen;
  Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow Q_flow;
  Modelica.Blocks.Sources.Sine sine(
    freqHz=1/86400,
    offset=273.15,
    amplitude=20,
    phase=-1.5707963267949);
equation 

  connect(TSet.y, con.u_s);
  connect(TBC.port, theCon.port_a);
  connect(theCon.port_b, cap.port);
  connect(con.y, gain.u);
  connect(cap.port, temSen.port);
  connect(temSen.T, con.u_m);
  connect(gain.y, Q_flow.Q_flow);
  connect(Q_flow.port, cap.port);
  connect(sine.y, TBC.T);
end PIDHysteresis;

Buildings.Controls.Continuous.Examples.PIDHysteresisTimer

Modelica definition

model PIDHysteresisTimer "Example model"
  import Buildings;

  Buildings.Controls.Continuous.PIDHysteresisTimer con(
    yMin=0.3,
    minOffTime=10000,
    controllerType=Modelica.Blocks.Types.SimpleController.PI,
    Ti=60,
    Td=10);
  Modelica.Blocks.Sources.Constant TSet(k=273.15 + 40) "Set point";
  Modelica.Thermal.HeatTransfer.Components.HeatCapacitor cap(C=100000, T(start=
          293.15, fixed=true));
  Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperature TBC;
  Modelica.Thermal.HeatTransfer.Components.ThermalConductor theCon(G=10);
  Modelica.Blocks.Math.Gain gain(k=800);
  Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensor temSen;
  Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlow Q_flow;
  Modelica.Blocks.Sources.Sine sine(
    freqHz=1/86400,
    offset=273.15,
    amplitude=20,
    phase=-1.5707963267949);
equation 

  connect(TSet.y, con.u_s);
  connect(TBC.port, theCon.port_a);
  connect(theCon.port_b, cap.port);
  connect(con.y, gain.u);
  connect(cap.port, temSen.port);
  connect(temSen.T, con.u_m);
  connect(gain.y, Q_flow.Q_flow);
  connect(Q_flow.port, cap.port);
  connect(sine.y, TBC.T);
end PIDHysteresisTimer;

Buildings.Controls.Continuous.Examples.SignalRanker

Modelica definition

model SignalRanker "Example model"

  Modelica.Blocks.Sources.Sine sine(freqHz=2);
  Modelica.Blocks.Sources.Pulse pulse(period=0.25);
  Buildings.Controls.Continuous.SignalRanker sigRan(
                                                  nin=3);
  Modelica.Blocks.Sources.ExpSine expSine(freqHz=10);
equation 
  connect(sine.y, sigRan.u[1]);
  connect(pulse.y, sigRan.u[2]);
  connect(expSine.y, sigRan.u[3]);
end SignalRanker;