Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Validation
Collection of validation models
Information
This package contains validation models for the classes in Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.
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.
Package Content
| Name | Description |
|---|---|
 ActiveAirFlow
|
Validate the model for calculating active airflow setpoint for dual-duct terminal unit |
| Alarms
|
Validation of model that generates alarms |
| DampersDualSensors
|
Validate model for controlling damper position of dual-duct unit |
| DampersSingleSensors
|
Validate model for controlling damper position of dual-duct unit |
| Overrides
|
Validation of model that overrides control |
| SystemRequests
|
Validation of model that generates system requests |
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Validation.ActiveAirFlow
Validate the model for calculating active airflow setpoint for dual-duct terminal unit
Information
This example validates Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.ActiveAirFlow for calculating active minimum and maximum airflow setpoint used in dual-duct terminal unit.
Modelica definition
model ActiveAirFlow
"Validate the model for calculating active airflow setpoint for dual-duct terminal unit"
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.ActiveAirFlow
actAirSet(
final VCooMax_flow=0.5,
final VHeaMax_flow=0.4)
"Output the active airflow setpoint for terminal unit";
Buildings.Controls.OBC.CDL.Reals.Sources.Sin minFlo(
final amplitude=0.3,
final freqHz=1/3600,
final offset=0.2) "Occupied zone minimum flow";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp opeMod(
final offset=1,
final height=5,
final duration=3600)
"Operation mode";
Buildings.Controls.OBC.CDL.Conversions.RealToInteger reaToInt2
"Convert real to integer";
Buildings.Controls.OBC.CDL.Reals.Round round2(final n=0)
"Round real number to given digits";
equation
connect(opeMod.y,round2. u);
connect(round2.y,reaToInt2. u);
connect(reaToInt2.y, actAirSet.uOpeMod);
connect(minFlo.y, actAirSet.VOccMin_flow);
end ActiveAirFlow;
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Validation.Alarms
Validation of model that generates alarms
Information
This example validates Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Alarms for generating system alarms.
Modelica definition
model Alarms "Validation of model that generates alarms"
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Alarms
ala(
final have_duaSen=true,
final staPreMul=1,
final VCooMax_flow=1,
final VHeaMax_flow=0.9,
final floHys=0.01,
final damPosHys=0.01) "Block outputs system alarms";
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Alarms
ala1(
final have_duaSen=false,
final staPreMul=1,
final VCooMax_flow=1,
final VHeaMax_flow=0.9,
final floHys=0.01,
final damPosHys=0.01) "Block outputs system alarms";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp disAirSet(
final height=0.9,
final duration=7200,
final offset=0.1) "Discharge airflow rate setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp cooDisAir(
final duration=7200,
final offset=0.1,
final height=0.3) "Cooling duct discharge airflow rate";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp damPos(
final duration=7200,
final height=0.7,
final offset=0.3) "Damper position";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse supCooFan(
final width=0.75,
final period=7500) "Cooling supply fan status";
Buildings.Controls.OBC.CDL.Conversions.BooleanToReal booToRea
"Convert boolean input to real output";
Buildings.Controls.OBC.CDL.Reals.Multiply mul
"Damper position";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse colDammSta(
final width=0.5,
final period=7500) "Cooling duct damper open and close status";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp damPos1(
final duration=7200,
final height=0.7,
final offset=0.3) "Damper position";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse supHeaFan(
final width=0.75,
final period=7500)
"Heating supply fan status";
Buildings.Controls.OBC.CDL.Conversions.BooleanToReal booToRea1
"Convert boolean input to real output";
Buildings.Controls.OBC.CDL.Reals.Multiply mul1
"Damper position";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse heaDammSta(
final width=0.5,
final period=7500)
"Heating duct damper open and close status";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp heaDisAir(
final duration=7200,
final offset=0.1,
final height=0.3) "Heating duct discharge airflow rate";
Buildings.Controls.OBC.CDL.Integers.Sources.Pulse intPul(
amplitude=6,
width=0.1,
period=8500,
offset=1)
"Operation mode";
equation
connect(disAirSet.y, ala.VActSet_flow);
connect(booToRea.y, mul.u1);
connect(damPos.y, mul.u2);
connect(colDammSta.y, booToRea.u);
connect(booToRea1.y, mul1.u1);
connect(damPos1.y, mul1.u2);
connect(heaDammSta.y, booToRea1.u);
connect(supCooFan.y, ala.u1CooFan);
connect(mul.y, ala.uCooDam);
connect(supHeaFan.y, ala.u1HeaFan);
connect(mul1.y, ala.uHeaDam);
connect(cooDisAir.y, ala.VColDucDis_flow);
connect(heaDisAir.y, ala.VHotDucDis_flow);
connect(supCooFan.y, ala1.u1CooFan);
connect(mul.y, ala1.uCooDam);
connect(supHeaFan.y, ala1.u1HeaFan);
connect(mul1.y, ala1.uHeaDam);
connect(disAirSet.y, ala1.VActSet_flow);
connect(cooDisAir.y, ala1.VDis_flow);
connect(intPul.y, ala.uOpeMod);
connect(intPul.y, ala1.uOpeMod);
end Alarms;
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Validation.DampersDualSensors
Validate model for controlling damper position of dual-duct unit
Information
This example validates BBuildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.DampersDualSensors for damper control of dual-duct unit.
Modelica definition
model DampersDualSensors
"Validate model for controlling damper position of dual-duct unit"
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.DampersDualSensors
dam1(
final VCooMax_flow=0.08,
final VHeaMax_flow=0.06,
final kDam=1,
final samplePeriod=120) "Output signal for controlling damper position";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp uCoo(
final height=-1,
final duration=3600,
final offset=1,
final startTime=900) "Cooling control signal";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant TZon(
final k=273.15 + 22)
"Zone temperature";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant TCooSup(
final k=273.15 + 13)
"AHU supply air temperature";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant VActMin_flow(
final k=0.01)
"Active minimum airflow setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant VActCooMax_flow(
final k=0.075)
"Active cooling maximum airflow setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Sin VColDuc(
final offset=0.015,
final amplitude=0.002,
final freqHz=1/3600)
"Cold-duct airflow rate";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse cooAhu(
final width=0.75,
final period=7200)
"Cold air handling unit status";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant THeaSup(
final k=273.15 + 25)
"AHU supply air temperature";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp uHea(
final height=1,
final duration=3600,
final offset=0,
final startTime=5500)
"Heating control signal";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant VActHeaMax_flow(
final k=0.07)
"Active heating maximum airflow setpoint";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse heaAhu(
final width=0.75,
final period=7200,
final shift=5000)
"Hot air handling unit status";
Buildings.Controls.OBC.CDL.Reals.Sources.Sin VHotDuc(
final offset=0.015,
final amplitude=0.002,
final freqHz=1/3600)
"Hot-duct airflow rate";
equation
connect(VActMin_flow.y, dam1.VActMin_flow);
connect(TZon.y, dam1.TZon);
connect(VActCooMax_flow.y, dam1.VActCooMax_flow);
connect(uCoo.y, dam1.uCoo);
connect(TCooSup.y, dam1.TColSup);
connect(cooAhu.y, dam1.u1CooAHU);
connect(THeaSup.y, dam1.THotSup);
connect(uHea.y, dam1.uHea);
connect(VActHeaMax_flow.y, dam1.VActHeaMax_flow);
connect(heaAhu.y, dam1.u1HeaAHU);
connect(VColDuc.y, dam1.VColDucDis_flow);
connect(VHotDuc.y, dam1.VHotDucDis_flow);
end DampersDualSensors;
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Validation.DampersSingleSensors
Validate model for controlling damper position of dual-duct unit
Information
This example validates BBuildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.DampersSingleSensors for damper control of dual-duct unit.
Modelica definition
model DampersSingleSensors
"Validate model for controlling damper position of dual-duct unit"
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.DampersSingleSensors
dam1(
final VCooMax_flow=0.08,
final VHeaMax_flow=0.06,
final kDam=1,
final samplePeriod=120) "Output signal for controlling damper position";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp uCoo(
final height=-1,
final duration=3600,
final offset=1,
final startTime=900) "Cooling control signal";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant VActMin_flow(
final k=0.01)
"Active minimum airflow setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant VActCooMax_flow(
final k=0.075)
"Active cooling maximum airflow setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Sin VDis(
final offset=0.015,
final amplitude=0.002,
final freqHz=1/3600) "Discharge airflow rate";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse cooAhu(
final width=0.75,
final period=7200)
"Cold air handling unit status";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp uHea(
final height=1,
final duration=3600,
final offset=0,
final startTime=5500)
"Heating control signal";
Buildings.Controls.OBC.CDL.Reals.Sources.Constant VActHeaMax_flow(
final k=0.07)
"Active heating maximum airflow setpoint";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse heaAhu(
final width=0.75,
final period=7200,
final shift=5000)
"Hot air handling unit status";
equation
connect(VActMin_flow.y, dam1.VActMin_flow);
connect(VActCooMax_flow.y, dam1.VActCooMax_flow);
connect(uCoo.y, dam1.uCoo);
connect(cooAhu.y, dam1.u1CooAHU);
connect(uHea.y, dam1.uHea);
connect(VActHeaMax_flow.y, dam1.VActHeaMax_flow);
connect(heaAhu.y, dam1.u1HeaAHU);
connect(VDis.y, dam1.VDis_flow);
end DampersSingleSensors;
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Validation.Overrides
Validation of model that overrides control
Information
This example validates Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Overrides for overrideing controls.
Modelica definition
model Overrides "Validation of model that overrides control"
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Overrides
ove(
final VMin_flow=0.1,
final VCooMax_flow=0.9,
final VHeaMax_flow=0.8) "Block outputs system requests";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp disAirSet(
final height=0.9,
final duration=7200,
final offset=0.1) "Discharge airflow rate setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp cooDamPos(
final duration=3600,
final height=0.5,
final offset=0.5) "Cooling damper position setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp oveFlo(
final height=3,
final duration=2000,
startTime=1000) "Override flow setpoint";
Buildings.Controls.OBC.CDL.Conversions.RealToInteger reaToInt2
"Convert real to integer";
Buildings.Controls.OBC.CDL.Reals.Round round2(
final n=0)
"Round real number to given digits";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp oveDam(
final height=2,
final duration=2000,
startTime=1000) "Override damper position";
Buildings.Controls.OBC.CDL.Conversions.RealToInteger reaToInt1
"Convert real to integer";
Buildings.Controls.OBC.CDL.Reals.Round round1(
final n=0)
"Round real number to given digits";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp heaDamPos(
final duration=3600,
final height=0.5,
final offset=0.5) "Heating damper position setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp oveDam1(
final height=2,
final duration=2000,
startTime=1000) "Override damper position";
Buildings.Controls.OBC.CDL.Conversions.RealToInteger reaToInt3
"Convert real to integer";
Buildings.Controls.OBC.CDL.Reals.Round round3(final n=0)
"Round real number to given digits";
equation
connect(oveDam.y, round1.u);
connect(round1.y, reaToInt1.u);
connect(oveFlo.y, round2.u);
connect(round2.y, reaToInt2.u);
connect(reaToInt2.y, ove.oveFloSet);
connect(disAirSet.y, ove.VActSet_flow);
connect(reaToInt1.y, ove.oveCooDamPos);
connect(cooDamPos.y, ove.uCooDam);
connect(oveDam1.y, round3.u);
connect(round3.y,reaToInt3. u);
connect(reaToInt3.y, ove.oveHeaDamPos);
connect(heaDamPos.y, ove.uHeaDam);
end Overrides;
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.Validation.SystemRequests
Validation of model that generates system requests
Information
This example validates Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.SystemRequests for generating system requests.
Modelica definition
model SystemRequests
"Validation of model that generates system requests"
Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctSnapActing.Subsequences.SystemRequests
sysReq(
final have_duaSen=false,
final floHys=0.01,
final looHys=0.01,
final damPosHys=0.01) "Block outputs system requests";
Buildings.Controls.OBC.CDL.Reals.Sources.Sin sine(
final freqHz=1/7200,
final offset=296.15)
"Generate data for setpoint";
Buildings.Controls.OBC.CDL.Discrete.UnitDelay TZonCooSet(
final samplePeriod=1800) "Cooling setpoint temperature";
Buildings.Controls.OBC.CDL.Reals.Sources.Sin TZon(
final freqHz=1/7200,
final amplitude=2,
final offset=299.15)
"Zone temperature";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp uCoo(
final height=-1,
final duration=2000,
final offset=1,
final startTime=1000)
"Cooling loop signal";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp colDucAirSet(
final height=0.9,
final duration=7200,
final offset=0.1) "Cold-duct airflow rate setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp colDucAirRate(
final duration=7200,
final offset=0.1,
final height=0.3) "Cold duct airflow rate";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp colDamPos(
final duration=3000,
final height=-0.7,
final offset=0.7) "Cold-duct damper position";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse booPul(
final width=0.1,
final period=7200)
"After suppression";
Buildings.Controls.OBC.CDL.Logical.Not not1 "Logical not";
Buildings.Controls.OBC.CDL.Reals.Sources.Sin sine1(
final freqHz=1/7200,
final offset=293.15)
"Generate data for setpoint";
Buildings.Controls.OBC.CDL.Discrete.UnitDelay TZonHeaSet(
final samplePeriod=1800)
"Heating setpoint temperature";
Buildings.Controls.OBC.CDL.Logical.Sources.Pulse booPul1(
final width=0.1,
final period=7200)
"After suppression";
Buildings.Controls.OBC.CDL.Logical.Not not2 "Logical not";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp uHea(
final height=0.9,
final duration=3600,
final startTime=3600)
"Heating loop signal";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp hotDucAirSet(
final height=0.9,
final duration=7200,
final offset=0.1)
"Hot-duct airflow rate setpoint";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp hotDucAirRate(
final duration=7200,
final offset=0.1,
final height=0.3)
"Hot duct airflow rate";
Buildings.Controls.OBC.CDL.Reals.Sources.Ramp hotDamPos(
final duration=3600,
final height=0.7,
startTime=3600)
"Hot-duct damper position";
Buildings.Controls.OBC.CDL.Reals.GreaterThreshold greThr(final t=0.01)
"Check if damper is open";
Buildings.Controls.OBC.CDL.Reals.GreaterThreshold greThr1(final t=0.01)
"Check if damper is open";
equation
connect(sine.y, TZonCooSet.u);
connect(TZonCooSet.y, sysReq.TCooSet);
connect(TZon.y, sysReq.TZon);
connect(uCoo.y, sysReq.uCoo);
connect(booPul.y, not1.u);
connect(not1.y, sysReq.uAftSupCoo);
connect(colDucAirSet.y, sysReq.VColDuc_flow_Set);
connect(colDucAirRate.y, sysReq.VColDucDis_flow);
connect(colDamPos.y, sysReq.uCooDam);
connect(sine1.y, TZonHeaSet.u);
connect(booPul1.y, not2.u);
connect(not2.y, sysReq.uAftSupHea);
connect(TZonHeaSet.y, sysReq.THeaSet);
connect(uHea.y, sysReq.uHea);
connect(hotDucAirSet.y, sysReq.VHotDuc_flow_Set);
connect(hotDucAirRate.y, sysReq.VHotDucDis_flow);
connect(hotDamPos.y, sysReq.uHeaDam);
connect(colDamPos.y, greThr.u);
connect(greThr.y, sysReq.u1CooDam);
connect(hotDamPos.y, greThr1.u);
connect(greThr1.y, sysReq.u1HeaDam);
end SystemRequests;