Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation

Collection of validation models

Information

This package contains validation models for the classes in Buildings.Obsolete.Controls.OBC.CDL.Continuous.

Note that most validation models contain simple input data which may not be realistic, but for which the correct output can be obtained through an analytic solution. The examples plot various outputs, which have been verified against these solutions. These model outputs are stored as reference data and used for continuous validation whenever models in the library change.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name	Description
Add	Validation model for the add block
AddParameter	Validation model for the AddParameter block
ChangeSign	Validation model for the ChangeSign block
Derivative	Validation model for the Derivative block
Feedback	Validation model for the Feedback block
GreaterEqual	Validation model for the GreaterEqual block
GreaterEqualThreshold	Validation model for the GreaterEqualThreshold block
HysteresisWithHold	Validation model for the HysteresisWithHold block
LessEqual	Validation model for the LessEqual block
LessEqualThreshold	Validation model for the LessEqualThreshold block
LimPID	Test model for LimPID controller
LimPIDInitialDerivativeOutput	Test model for LimPID controller with initial output specified
LimPIDInitialState	Test model for LimPID controller with initial state specified
LimPIDWithReset	Test model for LimPID controller with reset trigger
NumberOfRequests	Validation model for the NumberOfRequests block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.Add

Validation model for the add block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.Add

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.Add.

The input u1 varies from -2 to +2, input u2 varies from -1 to +1.

Modelica definition

model Add "Validation model for the add block" Buildings.Obsolete.Controls.OBC.CDL.Continuous.Add add1 "Block that outputs the sum of the two inputs"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=1, offset=-2, height=4) "Block that generates ramp signal"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp2( height=2, duration=1, offset=-1) "Block that generates ramp signal"; equation connect(ramp1.y,add1.u1); connect(ramp2.y,add1.u2); end Add;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.AddParameter

Validation model for the AddParameter block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.AddParameter

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.AddParameter.

The input u varies from -2 to +2.

Modelica definition

model AddParameter "Validation model for the AddParameter block" Buildings.Obsolete.Controls.OBC.CDL.Continuous.AddParameter addPar( p=0.5, k=1.0) "Block that outputs the sum of an input plus a parameter"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=1, offset=-2, height=4) "Block that generates ramp signal"; equation connect(ramp1.y,addPar.u); end AddParameter;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.ChangeSign

Validation model for the ChangeSign block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.ChangeSign

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.ChangeSign.

The input u varies from -1.5 to +1.5.

Modelica definition

model ChangeSign "Validation model for the ChangeSign block" Buildings.Obsolete.Controls.OBC.CDL.Continuous.ChangeSign changSign "Block that change sign of the input"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=1, offset=-1.5, height=3.0) "Block that generates ramp signal"; equation connect(ramp1.y, changSign.u); end ChangeSign;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.Derivative

Validation model for the Derivative block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.Derivative

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.Derivative.

The input u varies from 0.0 to +5*6.283.

Modelica definition

model Derivative "Validation model for the Derivative block" Buildings.Controls.OBC.CDL.Reals.Cos cos1 "Block that outputs the cosine of the input"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=5, offset=0, height=6.283*5) "Block that generates ramp signal"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.Derivative der1( y_start=-10) "Approximate the derivative of the input"; equation connect(ramp1.y, cos1.u); connect(cos1.y, der1.u); end Derivative;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.Feedback

Validation model for the Feedback block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.Feedback

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.Feedback.

The input u1 varies from -2 to +2, input u2 varies from -1 to +1.

Modelica definition

model Feedback "Validation model for the Feedback block" Buildings.Obsolete.Controls.OBC.CDL.Continuous.Feedback feedback1 "Block that outputs difference between commanded and feedback input"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=1, offset=-1, height=4) "Block that generates ramp signal"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp2( height=2, duration=1, offset=-1) "Block that generates ramp signal"; equation connect(ramp1.y,feedback1.u1); connect(ramp2.y,feedback1.u2); end Feedback;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.GreaterEqual

Validation model for the GreaterEqual block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.GreaterEqual

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.GreaterEqual.

Modelica definition

model GreaterEqual "Validation model for the GreaterEqual block" Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=1, offset=-2, height=4) "Block that generates ramp signal"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp2( duration=1, offset=-1, height=2) "Block that generates ramp signal"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.GreaterEqual greEqu "Check if the first input is greater than or equal to the second input"; equation connect(ramp1.y, greEqu.u1); connect(ramp2.y, greEqu.u2); end GreaterEqual;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.GreaterEqualThreshold

Validation model for the GreaterEqualThreshold block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.GreaterEqualThreshold

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.GreaterEqualThreshold.

Modelica definition

model GreaterEqualThreshold "Validation model for the GreaterEqualThreshold block" Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp2( duration=1, offset=-1, height=2) "Block that generates ramp signal"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.GreaterEqualThreshold greEquThr "Check if the input is greater than or equal to the threshold"; equation connect(ramp2.y, greEquThr.u); end GreaterEqualThreshold;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.HysteresisWithHold

Validation model for the HysteresisWithHold block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.HysteresisWithHold

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.HysteresisWithHold.

The hold durations are configured as follows:

true hold duration time trueHoldDuration=0, false hold duration time falseHoldDuration=0.
true hold duration time trueHoldDuration=30, false hold duration time falseHoldDuration=30.
true hold duration time trueHoldDuration=30, false hold duration time falseHoldDuration=300. The false hold period covers the instance when it should be on.
true hold duration time trueHoldDuration=150, false hold duration time falseHoldDuration=30. The true hold period covers the instance when it should be off.

Modelica definition

model HysteresisWithHold "Validation model for the HysteresisWithHold block" Modelica.Blocks.Sources.Sine pulse1(amplitude=0.2, f=1/360) "Generate sine wave signal"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.HysteresisWithHold noHold( trueHoldDuration = 0, falseHoldDuration = 0, uLow = 0.05, uHigh = 0.15) "No true/false hold"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.HysteresisWithHold onHold_30s( trueHoldDuration = 30, falseHoldDuration = 30, uLow = 0.05, uHigh = 0.15) "On/off signal are hold for short period"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.HysteresisWithHold offHold_300s( trueHoldDuration = 30, falseHoldDuration = 300, uLow = 0.05, uHigh = 0.15) "Off signal being hold even when it should be on"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.HysteresisWithHold onHold_150s( trueHoldDuration = 150, falseHoldDuration = 30, uLow = 0.05, uHigh = 0.15) "On signal being hold even when it should be off."; equation connect(pulse1.y, onHold_150s.u); connect(pulse1.y, noHold.u); connect(pulse1.y, offHold_300s.u); connect(pulse1.y, onHold_30s.u); end HysteresisWithHold;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LessEqual

Validation model for the LessEqual block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LessEqual

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.LessEqual.

Modelica definition

model LessEqual "Validation model for the LessEqual block" Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=1, offset=-2, height=4) "Block that generates ramp signal"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp2( duration=1, offset=-1, height=2) "Block that generates ramp signal"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LessEqual lesEqu "Check if the first input is less than or equal to the second input"; equation connect(ramp1.y, lesEqu.u1); connect(ramp2.y, lesEqu.u2); end LessEqual;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LessEqualThreshold

Validation model for the LessEqualThreshold block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LessEqualThreshold

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.LessEqualThreshold.

Modelica definition

model LessEqualThreshold "Validation model for the LessEqualThreshold block" Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=1, offset=-2, height=4) "Block that generates ramp signal"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LessEqualThreshold lesEquThr "Check if the input is less than or equal to the threshold"; equation connect(ramp1.y, lesEquThr.u); end LessEqualThreshold;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LimPID

Test model for LimPID controller

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LimPID

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID.

The model limPIDOri is the original implementation of the controller from the Modelica Standard Library. The models limPID is the implementations from the Buildings library.

Modelica definition

model LimPID "Test model for LimPID controller" Buildings.Controls.OBC.CDL.Reals.Sources.Pulse pulse(period=0.25) "Setpoint"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPID( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PID, Ti=1, Td=1, yMin=-1) "PID controller"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPIDOri( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PID, Ti=1, Td=1, yMin=-1) "PID controller"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant const(k=0.5) "Measurement data"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPI( Ti=1, Td=1, yMin=-1, controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PI) "PI controller"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPD( Ti=1, Td=1, yMin=-1, controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PD) "PD controller"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limP( Ti=1, Td=1, yMin=-1, controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.P) "P controller"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID noLimPID( Ti=1, Td=1, yMax=1e15, yMin=-1e15, controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PID) "PID controller with no output limit"; equation connect(pulse.y, limPID.u_s); connect(const.y, limPID.u_m); connect(pulse.y, limPIDOri.u_s); connect(const.y, limPIDOri.u_m); connect(const.y, limPI.u_m); connect(const.y, limPD.u_m); connect(pulse.y, limPI.u_s); connect(pulse.y, limPD.u_s); connect(pulse.y, limP.u_s); connect(pulse.y, noLimPID.u_s); connect(const.y, limP.u_m); connect(const.y, noLimPID.u_m); end LimPID;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LimPIDInitialDerivativeOutput

Test model for LimPID controller with initial output specified

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LimPIDInitialDerivativeOutput

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID.

This model validates setting the initial output of the controller to a specified value. Note that the control error must be zero for the initial output to be at the specified value. See the description of Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID.

Modelica definition

model LimPIDInitialDerivativeOutput "Test model for LimPID controller with initial output specified" Buildings.Controls.OBC.CDL.Reals.Sources.Constant ySet(k=0.75) "Set point"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant yMea(k=0.75) "Measured value"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPID( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PID, k=3, yd_start=0.2) "PID controller"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPD( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PD, k=3, yd_start=0.2) "PD controller"; equation connect(ySet.y, limPID.u_s); connect(ySet.y,limPD. u_s); connect(yMea.y, limPID.u_m); connect(yMea.y,limPD. u_m); end LimPIDInitialDerivativeOutput;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LimPIDInitialState

Test model for LimPID controller with initial state specified

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LimPIDInitialState

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID.

This model validates setting the initial state of the controller to a specified value.

The model sets the initial values xi_start=0.25 of the integrator for both instances of the controller. For the instance limPID, it also sets the initial value of the state of the derivative block xd_start=-0.5. The derivative block obtains as an input signal the value u=-0.5 because the set point weight for the derivative action is wd=0. Therefore, an initial state of x(t₀)=-0.5 causes the state of the derivative block to be at steady-state, because dx(t)/dt = (u - x)/T.

Modelica definition

model LimPIDInitialState "Test model for LimPID controller with initial state specified" Buildings.Controls.OBC.CDL.Reals.Sources.Constant ySet(k=0.75) "Set point"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant yMea(k=0.5) "Measured value"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPID( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PID, k=3, xi_start=0.25) "PID controller"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPI( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PI, k=3, xi_start=0.25) "PI controller"; equation connect(ySet.y, limPID.u_s); connect(ySet.y, limPI.u_s); connect(yMea.y, limPID.u_m); connect(yMea.y, limPI.u_m); end LimPIDInitialState;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LimPIDWithReset

Test model for LimPID controller with reset trigger

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.LimPIDWithReset

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID.

This model validates the controller for different settings of the control output reset.

Modelica definition

model LimPIDWithReset "Test model for LimPID controller with reset trigger" Buildings.Controls.OBC.CDL.Conversions.BooleanToReal setPoi "Set point"; Buildings.Controls.OBC.CDL.Reals.Sources.ModelTime modTim "Model time"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.GreaterEqualThreshold greEquThr( threshold=1) "Outputs true after t=1"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPIDPar( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PID, k=1, Ti=1, Td=1, yMin=-1, reset=Buildings.Obsolete.Controls.OBC.CDL.Types.Reset.Parameter, y_reset=0.5) "Controller, reset to parameter value"; Buildings.Controls.OBC.CDL.Reals.IntegratorWithReset intWitRes1 "Integrator whose output should be brought to the set point"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPIDInp( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PID, k=1, Ti=1, Td=1, yMin=-1, reset=Buildings.Obsolete.Controls.OBC.CDL.Types.Reset.Input, y_reset=0.5) "Controller, reset to input value"; Buildings.Controls.OBC.CDL.Reals.IntegratorWithReset intWitRes2 "Integrator whose output should be brought to the set point"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant resVal(k=0.75) "Reset value"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPIPar( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PI, k=1, Ti=1, Td=1, yMin=-1, reset=Buildings.Obsolete.Controls.OBC.CDL.Types.Reset.Parameter, y_reset=0.5) "Controller, reset to parameter value"; Buildings.Controls.OBC.CDL.Reals.IntegratorWithReset intWitRes3 "Integrator whose output should be brought to the set point"; Buildings.Obsolete.Controls.OBC.CDL.Continuous.LimPID limPIInp( controllerType=Buildings.Controls.OBC.CDL.Types.SimpleController.PI, k=1, Ti=1, Td=1, yMin=-1, reset=Buildings.Obsolete.Controls.OBC.CDL.Types.Reset.Input, y_reset=0.5) "Controller, reset to input value"; Buildings.Controls.OBC.CDL.Reals.IntegratorWithReset intWitRes4 "Integrator whose output should be brought to the set point"; Buildings.Controls.OBC.CDL.Reals.Sources.Constant zer(final k=0) "Reset input to integrator when the reset is disabled"; Buildings.Controls.OBC.CDL.Logical.Sources.Constant noTri(final k=false) "No trigger when reset is disabled"; equation connect(limPIDPar.u_s, setPoi.y); connect(intWitRes1.u, limPIDPar.y); connect(intWitRes1.y, limPIDPar.u_m); connect(modTim.y, greEquThr.u); connect(greEquThr.y, setPoi.u); connect(greEquThr.y, limPIDPar.trigger); connect(intWitRes2.u, limPIDInp.y); connect(intWitRes2.y, limPIDInp.u_m); connect(limPIDInp.u_s, setPoi.y); connect(limPIDInp.y_reset_in, resVal.y); connect(limPIPar.u_s, setPoi.y); connect(intWitRes3.u, limPIPar.y); connect(intWitRes3.y, limPIPar.u_m); connect(greEquThr.y, limPIPar.trigger); connect(intWitRes4.u, limPIInp.y); connect(intWitRes4.y, limPIInp.u_m); connect(limPIInp.u_s, setPoi.y); connect(limPIInp.y_reset_in, resVal.y); connect(greEquThr.y, limPIInp.trigger); connect(limPIDInp.trigger, greEquThr.y); connect(zer.y, intWitRes1.y_reset_in); connect(zer.y, intWitRes2.y_reset_in); connect(zer.y, intWitRes3.y_reset_in); connect(zer.y, intWitRes4.y_reset_in); connect(noTri.y, intWitRes1.trigger); connect(noTri.y, intWitRes2.trigger); connect(noTri.y, intWitRes3.trigger); connect(noTri.y, intWitRes4.trigger); end LimPIDWithReset;

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.NumberOfRequests

Validation model for the NumberOfRequests block

Buildings.Obsolete.Controls.OBC.CDL.Continuous.Validation.NumberOfRequests

Information

Validation test for the block Buildings.Obsolete.Controls.OBC.CDL.Continuous.NumberOfRequests.

The input u1 varies from -2 to +2, input u2 varies from -1 to +2, input u3 varies from +2 to -2, input u4 varies from +3 to +2, input u5 varies from 0 to +4,

Modelica definition

model NumberOfRequests "Validation model for the NumberOfRequests block" Buildings.Obsolete.Controls.OBC.CDL.Continuous.NumberOfRequests numReq1( nin=5, t=1.0, kind=0) "Block that outputs the number of signals that are above/below a certain threshold"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp1( duration=1, offset=-2, height=4) "Block that generates ramp signal"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp2( duration=1, offset=-1, height=3) "Block that generates ramp signal"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp3( duration=1, height=3.5, offset=0.5) "Block that generates ramp signal"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp4( duration=1, offset=3, height=-1) "Block that generates ramp signal"; Buildings.Controls.OBC.CDL.Reals.Sources.Ramp ramp5( duration=1, offset=0, height=4) "Block that generates ramp signal"; equation connect(ramp1.y, numReq1.u[1]); connect(ramp2.y, numReq1.u[2]); connect(ramp3.y, numReq1.u[3]); connect(ramp4.y, numReq1.u[4]); connect(ramp5.y, numReq1.u[5]); end NumberOfRequests;