Buildings.Controls.OBC.ASHRAE.G36.FanCoilUnits
Control sequences for fan coil unit
Information
This package implements control modules for the fan coil unit as per the sequence of operations defined in ASHRAE Guideline 36-2021, section 5.22.
Package Content
| Name | Description |
|---|---|
 Controller
|
Fan coil unit controller that comprises subsequences for controlling fan speed and supply air temperature |
 Subsequences
|
Package of subsequences for fan coil unit controls |
 Validation
|
Package of validation models for fan coil unit controls |
Buildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Controller
Fan coil unit controller that comprises subsequences for controlling fan speed and supply air temperature
Information
Block for fan coil unit control. It outputs supply fan enable signal and speed signal, the supply air temperature setpoint, the zone air heating and cooling setpoints, and commanded valve positions for heating and cooling coils.
It is implemented according to the ASHRAE Guideline 36-2021, Part 5.22.
The sequences consist of the following subsequences.
Supply fan control
The supply fan control is implemented according to Part 5.22.4. It outputs
the control signals for supply fan enable yFan and the fan speed
yFanSpe.
See
Buildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Subsequences.FanSpeed for a detailed
description.
Supply air temperature setpoint
The supply air temperature setpoint control sequences are implemented based on Part 5.22.4.
The block outputs a supply air temperature setpoint signal TSupSet,
and control signals for the heating coil yHeaCoi and the cooling coil
yCooCoi. See
Buildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Subsequences.SupplyAirTemperature
for a detailed description.
Zone air heating and cooling setpoints
The zone air heating setpoint TZonHeaSetand cooling setpoint TZonHeaSet
as well as system operation mode signal modSetPoi.yOpeMod are described at
Buildings.Controls.OBC.ASHRAE.G36.AHUs.SingleZone.VAV.SetPoints.ModeAndSetPoints.
Plant requests
The plant requests are implemented based on Part 5.22.8.
The block outputs a chilled water plant request yChiPlaReq, chilled
water supply temperature reset request yChiWatResReq, hot water plant
request yHotWatPlaReq and hot water supply temperature reset request
yHotWatResReq. See
Buildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Subsequences.PlantRequests
for a detailed description.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | have_winSen | false | True if the zone has window status sensor |
| Boolean | have_occSen | false | True if the zone has occupancy sensor |
| Real | heaDea | 0.1 | Heating loop signal limit above which controller operation changes from deadband mode to heating mode [1] |
| Real | cooDea | 0.1 | Cooling loop signal limit above which controller operation changes from deadband mode to cooling mode [1] |
| System and building parameters | |||
| CoolingCoil | cooCoi | Buildings.Controls.OBC.ASHRA... | Cooling coil type |
| HeatingCoil | heaCoi | Buildings.Controls.OBC.ASHRA... | Heating coil type |
| PID parameters | |||
| Cooling loop control | |||
| SimpleController | cooConTyp | Buildings.Controls.OBC.CDL.T... | Type of cooling loop signal controller |
| Real | kCoo | 0.1 | Gain for cooling control loop signal [1/K] |
| Real | TiCoo | 900 | Time constant of integrator block for cooling control loop signal [s] |
| Real | TdCoo | 0.1 | Time constant of derivative block for cooling control loop signal [s] |
| Heating loop control | |||
| SimpleController | heaConTyp | Buildings.Controls.OBC.CDL.T... | Type of heating loop signal controller |
| Real | kHea | 0.1 | Gain for heating control loop signal [1/K] |
| Real | TiHea | 900 | Time constant of integrator block for heating control loop signal [s] |
| Real | TdHea | 0.1 | Time constant of derivative block for heating control loop signal [s] |
| Cooling coil control | |||
| SimpleController | cooCoiConTyp | Buildings.Controls.OBC.CDL.T... | Type of cooling coil controller |
| Real | kCooCoi | 0.1 | Gain for cooling coil control signal [1/K] |
| Real | TiCooCoi | 900 | Time constant of integrator block for cooling coil control signal [s] |
| Real | TdCooCoi | 0.1 | Time constant of derivative block for cooling coil control signal [s] |
| Heating coil control | |||
| SimpleController | heaCoiConTyp | Buildings.Controls.OBC.CDL.T... | Type of heating coil controller |
| Real | kHeaCoi | 0.1 | Gain for heating coil control signal [1/K] |
| Real | TiHeaCoi | 900 | Time constant of integrator block for heating coil control signal [s] |
| Real | TdHeaCoi | 0.1 | Time constant of derivative block for heatinging coil control signal [s] |
| Supply air setpoints | |||
| Real | uCooFan_min | 0.5 | Cooling loop signal limit at which supply air temperature is at minimum and fan speed starts to be modified [1] |
| Real | uHeaFan_min | 0.5 | Heating loop signal limit at which supply air temperature is at maximum and fan speed starts to be modified [1] |
| Temperature limits | |||
| Real | TSupSet_max | Maximum supply air temperature for heating [K] | |
| Real | TSupSet_min | Minimum supply air temperature for cooling [K] | |
| Fan speed | |||
| Real | deaSpe | 0.1 | Deadband mode fan speed [1] |
| Fan speed - Heating | |||
| Real | uHeaFan_max | 1 | Maximum heating loop signal at which fan speed is modified [1] |
| Real | heaSpe_max | 1 | Maximum fan speed for heating [1] |
| Real | heaSpe_min | 0.1 | Minimum fan speed for heating [1] |
| Fan speed - Cooling | |||
| Real | uCooFan_max | 1 | Maximum cooling loop signal at which fan speed is modified [1] |
| Real | cooSpe_max | 1 | Maximum fan speed for cooling [1] |
| Real | cooSpe_min | 0.1 | Minimum fan speed for cooling [1] |
| Adjust temperature setpoint | |||
| General | |||
| Boolean | have_locAdj | true | Flag, set to true if both cooling and heating setpoint are adjustable through a single common knob |
| Boolean | sepAdj | false | True: cooling and heating setpoint can be adjusted separately |
| Boolean | ignDemLim | false | Flag, set to true to exempt individual zone from demand limit setpoint adjustment |
| Advanced | |||
| Real | bouLim | 1 | Threshold of temperature difference for indicating the end of setback or setup mode |
| Limits | |||
| Real | TActCoo_max | 300.15 | Maximum cooling setpoint during on [K] |
| Real | TActCoo_min | 295.15 | Minimum cooling setpoint during on [K] |
| Real | TActHea_max | 295.15 | Maximum heating setpoint during on [K] |
| Real | TActHea_min | 291.15 | Minimum heating setpoint during on [K] |
| Real | TWinOpeCooSet | 322.15 | Cooling setpoint when window is open [K] |
| Real | TWinOpeHeaSet | 277.15 | Heating setpoint when window is open [K] |
| Demand control adjustment | |||
| Real | incTSetDem_1 | 0.56 | Cooling setpoint increase value (degK) when cooling demand limit level 1 is imposed [K] |
| Real | incTSetDem_2 | 1.1 | Cooling setpoint increase value (degK) when cooling demand limit level 2 is imposed [K] |
| Real | incTSetDem_3 | 2.2 | Cooling setpoint increase value (degK) when cooling demand limit level 3 is imposed [K] |
| Real | decTSetDem_1 | 0.56 | Heating setpoint decrease value (degK) when heating demand limit level 1 is imposed [K] |
| Real | decTSetDem_2 | 1.1 | Heating setpoint decrease value (degK) when heating demand limit level 2 is imposed [K] |
| Real | decTSetDem_3 | 2.2 | Heating setpoint decrease value (degK) when heating demand limit level 3 is imposed [K] |
| Request limits | |||
| Chilled water plant requests | |||
| Real | chiWatPlaReqLim0 | 0.1 | Valve position limit below which zero chilled water plant requests are sent when one request was previously being sent [1] |
| Real | chiWatPlaReqLim1 | 0.95 | Valve position limit above which one chilled water plant request is sent [1] |
| Chilled water temperature reset requests | |||
| Real | chiWatResReqLim0 | 0.85 | Valve position limit below which zero chilled water reset requests are sent when one request was previously being sent [1] |
| Real | chiWatResReqLim2 | 2.78 | Temperature difference limit between setpoint and supply air temperature above which two chilled water reset requests are sent [K] |
| Real | chiWatResReqTimLim2 | 300 | Time period for which chiWatResReqLim2 has to be exceeded before two chilled water reset requests are sent [s] |
| Real | chiWatResReqLim3 | 5.56 | Temperature difference limit between setpoint and supply air temperature above which three chilled water reset requests are sent [K] |
| Real | chiWatResReqTimLim3 | 300 | Time period for which chiWatResReqLim3 has to be exceeded before three chilled water reset requests are sent [s] |
| Hot water requests | |||
| Real | hotWatPlaReqLim0 | 0.1 | Valve position limit below which zero hot water plant requests are sent when one request was previously being sent [1] |
| Real | hotWatResReqLim0 | 0.85 | Valve position limit below which zero hot water reset requests are sent when one request was previously being sent [1] |
| Real | hotWatPlaReqLim1 | 0.95 | Valve position limit above which one hot water plant request is sent [1] |
| Real | hotWatResReqLim2 | 8 | Temperature difference limit between setpoint and supply air temperature above which two hot water reset requests are sent [K] |
| Real | hotWatResReqTimLim2 | 300 | Time period for which hotWatResReqLim2 has to be exceeded before two hot water reset requests are sent [s] |
| Real | hotWatResReqLim3 | 17 | Temperature difference limit between setpoint and supply air temperature above which three hot water reset requests are sent [K] |
| Real | hotWatResReqTimLim3 | 300 | Time period for which hotWatResReqLim3 has to be exceeded before three hot water reset requests are sent [s] |
| Advanced | |||
| Real | uLow | -0.1 | Lower limit of the hysteresis for checking temperature difference [1] |
| Real | uHigh | 0.1 | Higher limit of the hysteresis for checking temperature difference [1] |
| Real | deaHysLim | 0.05 | Hysteresis limits for cooling and heating loop signals for deadband mode transitions [1] |
| Real | THys | 0.1 | Hysteresis for checking temperature difference [K] |
| Real | dFanSpe | 0.05 | Fan speed hysteresis difference [1] |
| Operation mode | |||
| Real | preWarCooTim | 10800 | Maximum cool-down or warm-up time [s] |
Connectors
| Type | Name | Description |
|---|---|---|
| input BooleanInput | u1Occ | Current occupancy period, true if it is in occupant period |
| input BooleanInput | u1Win | Window status, normally closed (true), when windows open, it becomes false |
| input BooleanInput | u1Fan | Fan proven on signal |
| input IntegerInput | uCooDemLimLev | Cooling demand limit level |
| input IntegerInput | uHeaDemLimLev | Heating demand limit level |
| input IntegerInput | nOcc | Number of occupants |
| input RealInput | warUpTim | Warm-up time retrieved from optimal warm-up block [s] |
| input RealInput | cooDowTim | Cool-down time retrieved from optimal cool-down block [s] |
| input RealInput | tNexOcc | Time to next occupied period [s] |
| input RealInput | TZon | Measured zone temperatures [K] |
| input RealInput | TSup | Measured supply air temperature [K] |
| input RealInput | setAdj | Setpoint adjustment value [K] |
| input RealInput | cooSetAdj | Cooling setpoint adjustment value [K] |
| input RealInput | heaSetAdj | Heating setpoint adjustment value [K] |
| input RealInput | TOccHeaSet | Occupied heating setpoint temperature [K] |
| input RealInput | TOccCooSet | Occupied cooling setpoint temperature [K] |
| input RealInput | TUnoHeaSet | Unoccupied heating setpoint temperature [K] |
| input RealInput | TUnoCooSet | Unoccupied cooling setpoint temperature [K] |
| output BooleanOutput | y1Fan | Fan command on status |
| output IntegerOutput | yChiWatResReq | Chilled water reset request |
| output IntegerOutput | yChiPlaReq | Chiller plant requests |
| output IntegerOutput | yHotWatResReq | Hot water reset requests |
| output IntegerOutput | yHotWatPlaReq | Hot water plant requests |
| output RealOutput | TSupSet | Supply air temperature setpoint [K] |
| output RealOutput | yFan | Fan command speed [1] |
| output RealOutput | TZonHeaSet | Heating setpoint temperature [K] |
| output RealOutput | TZonCooSet | Cooling setpoint temperature [K] |
| output RealOutput | yCooCoi | Cooling coil control signal [1] |
| output RealOutput | yHeaCoi | Heating coil control signal [1] |
Modelica definition
block Controller
"Fan coil unit controller that comprises subsequences for controlling fan speed and supply air temperature"
parameter Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil cooCoi=Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased
"Cooling coil type";
parameter Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil heaCoi=Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased
"Heating coil type";
parameter Boolean have_winSen=false
"True if the zone has window status sensor";
parameter Boolean have_occSen=false
"True if the zone has occupancy sensor";
parameter Real heaDea(
final unit="1",
displayUnit="1")=0.1
"Heating loop signal limit above which controller operation changes from deadband mode to heating mode";
parameter Real cooDea(
final unit="1",
displayUnit="1")=0.1
"Cooling loop signal limit above which controller operation changes from deadband mode to cooling mode";
parameter Buildings.Controls.OBC.CDL.Types.SimpleController cooConTyp=
Buildings.Controls.OBC.CDL.Types.SimpleController.PI
"Type of cooling loop signal controller";
parameter Real kCoo(
final unit="1/K")=0.1
"Gain for cooling control loop signal";
parameter Real TiCoo(
final unit="s")=900
"Time constant of integrator block for cooling control loop signal";
parameter Real TdCoo(
final unit="s")=0.1
"Time constant of derivative block for cooling control loop signal";
parameter Buildings.Controls.OBC.CDL.Types.SimpleController heaConTyp=
Buildings.Controls.OBC.CDL.Types.SimpleController.PI
"Type of heating loop signal controller";
parameter Real kHea(
final unit="1/K")=0.1
"Gain for heating control loop signal";
parameter Real TiHea(
final unit="s")=900
"Time constant of integrator block for heating control loop signal";
parameter Real TdHea(
final unit="s")=0.1
"Time constant of derivative block for heating control loop signal";
parameter Buildings.Controls.OBC.CDL.Types.SimpleController cooCoiConTyp=
Buildings.Controls.OBC.CDL.Types.SimpleController.PI
"Type of cooling coil controller";
parameter Real kCooCoi(
final unit="1/K")=0.1
"Gain for cooling coil control signal";
parameter Real TiCooCoi(
final unit="s")=900
"Time constant of integrator block for cooling coil control signal";
parameter Real TdCooCoi(
final unit="s")=0.1
"Time constant of derivative block for cooling coil control signal";
parameter Buildings.Controls.OBC.CDL.Types.SimpleController heaCoiConTyp=
Buildings.Controls.OBC.CDL.Types.SimpleController.PI
"Type of heating coil controller";
parameter Real kHeaCoi(
final unit="1/K")=0.1
"Gain for heating coil control signal";
parameter Real TiHeaCoi(
final unit="s")=900
"Time constant of integrator block for heating coil control signal";
parameter Real TdHeaCoi(
final unit="s")=0.1
"Time constant of derivative block for heatinging coil control signal";
parameter Real uCooFan_min(
final unit="1")=0.5
"Cooling loop signal limit at which supply air temperature is at minimum and fan speed starts to be modified";
parameter Real uHeaFan_min(
final unit="1")=0.5
"Heating loop signal limit at which supply air temperature is at maximum and fan speed starts to be modified";
parameter Real TSupSet_max(
final unit="K",
displayUnit="degC")
"Maximum supply air temperature for heating";
parameter Real TSupSet_min(
final unit="K",
displayUnit="degC")
"Minimum supply air temperature for cooling";
parameter Real deaSpe(
final unit="1",
displayUnit="1")=0.1
"Deadband mode fan speed";
parameter Real uHeaFan_max(
final unit="1")=1
"Maximum heating loop signal at which fan speed is modified";
parameter Real heaSpe_max(
final unit="1")=1
"Maximum fan speed for heating";
parameter Real heaSpe_min(unit="1")=0.1
"Minimum fan speed for heating";
parameter Real uCooFan_max(unit="1")=1
"Maximum cooling loop signal at which fan speed is modified";
parameter Real cooSpe_max(
final unit="1")=1
"Maximum fan speed for cooling";
parameter Real cooSpe_min(
final unit="1")=0.1
"Minimum fan speed for cooling";
parameter Boolean have_locAdj=true
"Flag, set to true if both cooling and heating setpoint are adjustable through a single common knob";
parameter Boolean sepAdj=false
"True: cooling and heating setpoint can be adjusted separately";
parameter Boolean ignDemLim=false
"Flag, set to true to exempt individual zone from demand limit setpoint adjustment";
parameter Real bouLim=1
"Threshold of temperature difference for indicating the end of setback or setup mode";
parameter Real TActCoo_max(
final unit="K",
displayUnit="degC")=300.15
"Maximum cooling setpoint during on";
parameter Real TActCoo_min(
final unit="K",
displayUnit="degC")=295.15
"Minimum cooling setpoint during on";
parameter Real TActHea_max(
final unit="K",
displayUnit="degC")=295.15
"Maximum heating setpoint during on";
parameter Real TActHea_min(
final unit="K",
displayUnit="degC")=291.15
"Minimum heating setpoint during on";
parameter Real TWinOpeCooSet(
final unit="K",
displayUnit="degC")=322.15
"Cooling setpoint when window is open";
parameter Real TWinOpeHeaSet(
final unit="K",
displayUnit="degC")=277.15
"Heating setpoint when window is open";
parameter Real incTSetDem_1(
final unit="K")=0.56
"Cooling setpoint increase value (degK) when cooling demand limit level 1 is imposed";
parameter Real incTSetDem_2(
final unit="K")=1.1
"Cooling setpoint increase value (degK) when cooling demand limit level 2 is imposed";
parameter Real incTSetDem_3(
final unit="K")=2.2
"Cooling setpoint increase value (degK) when cooling demand limit level 3 is imposed";
parameter Real decTSetDem_1(
final unit="K")=0.56
"Heating setpoint decrease value (degK) when heating demand limit level 1 is imposed";
parameter Real decTSetDem_2(
final unit="K")=1.1
"Heating setpoint decrease value (degK) when heating demand limit level 2 is imposed";
parameter Real decTSetDem_3(
final unit="K")=2.2
"Heating setpoint decrease value (degK) when heating demand limit level 3 is imposed";
parameter Real chiWatPlaReqLim0(
final unit="1",
displayUnit="1")=0.1
"Valve position limit below which zero chilled water plant requests are sent when one request was previously being sent";
parameter Real chiWatResReqLim0(
final unit="1",
displayUnit="1")=0.85
"Valve position limit below which zero chilled water reset requests are sent when one request was previously being sent";
parameter Real chiWatPlaReqLim1(
final unit="1",
displayUnit="1")=0.95
"Valve position limit above which one chilled water plant request is sent";
parameter Real chiWatResReqLim2(
final unit="K")=2.78
"Temperature difference limit between setpoint and supply air temperature above which two chilled water reset requests are sent";
parameter Real chiWatResReqTimLim2(
final unit="s",
displayUnit="s")=300
"Time period for which chiWatResReqLim2 has to be exceeded before two chilled water reset requests are sent";
parameter Real chiWatResReqLim3(
final unit="K")=5.56
"Temperature difference limit between setpoint and supply air temperature above which three chilled water reset requests are sent";
parameter Real chiWatResReqTimLim3(
final unit="s",
displayUnit="s")=300
"Time period for which chiWatResReqLim3 has to be exceeded before three chilled water reset requests are sent";
parameter Real hotWatPlaReqLim0(
final unit="1",
displayUnit="1")=0.1
"Valve position limit below which zero hot water plant requests are sent when one request was previously being sent";
parameter Real hotWatResReqLim0(
final unit="1",
displayUnit="1")=0.85
"Valve position limit below which zero hot water reset requests are sent when one request was previously being sent";
parameter Real hotWatPlaReqLim1(
final unit="1",
displayUnit="1")=0.95
"Valve position limit above which one hot water plant request is sent";
parameter Real hotWatResReqLim2(
final unit="K")=8
"Temperature difference limit between setpoint and supply air temperature above which two hot water reset requests are sent";
parameter Real hotWatResReqTimLim2(
final unit="s",
displayUnit="s")=300
"Time period for which hotWatResReqLim2 has to be exceeded before two hot water reset requests are sent";
parameter Real hotWatResReqLim3(
final unit="K")=17
"Temperature difference limit between setpoint and supply air temperature above which three hot water reset requests are sent";
parameter Real hotWatResReqTimLim3(
final unit="s",
displayUnit="s")=300
"Time period for which hotWatResReqLim3 has to be exceeded before three hot water reset requests are sent";
parameter Real uLow(
final unit="1",
displayUnit="1")=-0.1
"Lower limit of the hysteresis for checking temperature difference";
parameter Real uHigh(
final unit="1",
displayUnit="1")=0.1
"Higher limit of the hysteresis for checking temperature difference";
parameter Real deaHysLim(
final unit="1",
displayUnit="1")=0.05
"Hysteresis limits for cooling and heating loop signals for deadband mode transitions";
parameter Real preWarCooTim(
final unit="s",
displayUnit="s")=10800
"Maximum cool-down or warm-up time";
parameter Real THys(
final unit="K")=0.1
"Hysteresis for checking temperature difference";
parameter Real dFanSpe(
final unit="1",
displayUnit="1")=0.05
"Fan speed hysteresis difference";
Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1Occ
"Current occupancy period, true if it is in occupant period";
Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1Win if have_winSen
"Window status, normally closed (true), when windows open, it becomes false";
Buildings.Controls.OBC.CDL.Interfaces.BooleanInput u1Fan
"Fan proven on signal";
Buildings.Controls.OBC.CDL.Interfaces.IntegerInput uCooDemLimLev
"Cooling demand limit level";
Buildings.Controls.OBC.CDL.Interfaces.IntegerInput uHeaDemLimLev
"Heating demand limit level";
Buildings.Controls.OBC.CDL.Interfaces.IntegerInput nOcc if have_occSen
"Number of occupants";
Buildings.Controls.OBC.CDL.Interfaces.RealInput warUpTim(
final unit="s",
displayUnit="min",
final quantity="Time")
"Warm-up time retrieved from optimal warm-up block";
Buildings.Controls.OBC.CDL.Interfaces.RealInput cooDowTim(
final unit="s",
displayUnit="min",
final quantity="Time")
"Cool-down time retrieved from optimal cool-down block";
Buildings.Controls.OBC.CDL.Interfaces.RealInput tNexOcc(
final unit="s",
displayUnit="min",
final quantity="Time")
"Time to next occupied period";
Buildings.Controls.OBC.CDL.Interfaces.RealInput TZon(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Measured zone temperatures";
Buildings.Controls.OBC.CDL.Interfaces.RealInput TSup(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Measured supply air temperature";
Buildings.Controls.OBC.CDL.Interfaces.RealInput setAdj(
final unit="K",
displayUnit="degC",
final quantity="TemperatureDifference")
if have_locAdj and not sepAdj
"Setpoint adjustment value";
Buildings.Controls.OBC.CDL.Interfaces.RealInput cooSetAdj(
final unit="K",
displayUnit="degC",
final quantity="TemperatureDifference") if have_locAdj and sepAdj
"Cooling setpoint adjustment value";
Buildings.Controls.OBC.CDL.Interfaces.RealInput heaSetAdj(
final unit="K",
displayUnit="degC",
final quantity="TemperatureDifference") if have_locAdj and sepAdj
"Heating setpoint adjustment value";
Buildings.Controls.OBC.CDL.Interfaces.RealInput TOccHeaSet(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Occupied heating setpoint temperature";
Buildings.Controls.OBC.CDL.Interfaces.RealInput TOccCooSet(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Occupied cooling setpoint temperature";
Buildings.Controls.OBC.CDL.Interfaces.RealInput TUnoHeaSet(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Unoccupied heating setpoint temperature";
Buildings.Controls.OBC.CDL.Interfaces.RealInput TUnoCooSet(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Unoccupied cooling setpoint temperature";
Buildings.Controls.OBC.CDL.Interfaces.BooleanOutput y1Fan
"Fan command on status";
Buildings.Controls.OBC.CDL.Interfaces.IntegerOutput yChiWatResReq
if cooCoi==Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased
"Chilled water reset request";
Buildings.Controls.OBC.CDL.Interfaces.IntegerOutput yChiPlaReq
if cooCoi==Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased
"Chiller plant requests";
Buildings.Controls.OBC.CDL.Interfaces.IntegerOutput yHotWatResReq
if heaCoi==Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased
"Hot water reset requests";
Buildings.Controls.OBC.CDL.Interfaces.IntegerOutput yHotWatPlaReq
if heaCoi==Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased
"Hot water plant requests";
Buildings.Controls.OBC.CDL.Interfaces.RealOutput TSupSet(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Supply air temperature setpoint";
Buildings.Controls.OBC.CDL.Interfaces.RealOutput yFan(
final min=0,
final max=1,
final unit="1")
"Fan command speed";
Buildings.Controls.OBC.CDL.Interfaces.RealOutput TZonHeaSet(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Heating setpoint temperature";
Buildings.Controls.OBC.CDL.Interfaces.RealOutput TZonCooSet(
final unit="K",
displayUnit="degC",
final quantity="ThermodynamicTemperature")
"Cooling setpoint temperature";
Buildings.Controls.OBC.CDL.Interfaces.RealOutput yCooCoi(
final min=0,
final max=1,
final unit="1")
if cooCoi==Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased
or cooCoi==Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.DXCoil
"Cooling coil control signal";
Buildings.Controls.OBC.CDL.Interfaces.RealOutput yHeaCoi(
final min=0,
final max=1,
final unit="1")
if heaCoi==Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased
or heaCoi==Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.Electric
"Heating coil control signal";
Buildings.Controls.OBC.ASHRAE.G36.AHUs.SingleZone.VAV.SetPoints.ModeAndSetPoints
modSetPoi(
final have_winSen=have_winSen,
final have_occSen=have_occSen,
final sepAdj=sepAdj,
final TActCoo_max=TActCoo_max,
final TActCoo_min=TActCoo_min,
final TActHea_max=TActHea_max,
final TActHea_min=TActHea_min,
final TWinOpeCooSet=TWinOpeCooSet,
final TWinOpeHeaSet=TWinOpeHeaSet,
final have_locAdj=have_locAdj,
final ignDemLim=ignDemLim,
final incTSetDem_1=incTSetDem_1,
final incTSetDem_2=incTSetDem_2,
final incTSetDem_3=incTSetDem_3,
final decTSetDem_1=decTSetDem_1,
final decTSetDem_2=decTSetDem_2,
final decTSetDem_3=decTSetDem_3,
final bouLim=bouLim,
final uLow=uLow,
final uHigh=uHigh,
final preWarCooTim=preWarCooTim)
"Zone setpoint and operation mode";
Buildings.Controls.OBC.CDL.Reals.PIDWithReset cooPI(
final reverseActing=false,
final controllerType=cooConTyp,
final k=kCoo,
final Ti=TiCoo,
final Td=TdCoo,
r=5)
if cooCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased
or cooCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.DXCoil
"Zone cooling control signal";
Buildings.Controls.OBC.CDL.Reals.PIDWithReset heaPI(
final controllerType=heaConTyp,
final k=kHea,
final Ti=TiHea,
final Td=TdHea,
r=5)
if heaCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased
or heaCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.Electric
"Zone heating control signal";
Buildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Subsequences.PlantRequests fcuPlaReq(
final have_hotWatCoi=heaCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased,
final have_chiWatCoi=cooCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased,
final cooSpe_max=cooSpe_max,
final heaSpe_max=heaSpe_max,
final chiWatPlaReqLim0=chiWatPlaReqLim0,
final chiWatResReqLim0=chiWatResReqLim0,
final chiWatPlaReqLim1=chiWatPlaReqLim1,
final chiWatResReqLim2=chiWatResReqLim2,
final chiWatResReqTimLim2=chiWatResReqTimLim2,
final chiWatResReqLim3=chiWatResReqLim3,
final chiWatResReqTimLim3=chiWatResReqTimLim3,
final hotWatPlaReqLim0=hotWatPlaReqLim0,
final hotWatResReqLim0=hotWatResReqLim0,
final hotWatPlaReqLim1=hotWatPlaReqLim1,
final hotWatResReqLim2=hotWatResReqLim2,
final hotWatResReqTimLim2=hotWatResReqTimLim2,
final hotWatResReqLim3=hotWatResReqLim3,
final hotWatResReqTimLim3=hotWatResReqTimLim3,
final THys=THys,
final dFanSpe=dFanSpe)
if cooCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased
or heaCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased
"Block for generating chilled water requests and hot water requests for their respective plants";
Buildings.Controls.OBC.CDL.Integers.Sources.Constant unOccMod(
final k=Buildings.Controls.OBC.ASHRAE.G36.Types.OperationModes.unoccupied)
"Unoccupied mode";
Buildings.Controls.OBC.CDL.Integers.Equal isUnOcc
"Check if current operation mode is unoccupied mode";
Buildings.Controls.OBC.CDL.Logical.Not isOcc
"If in unoccupied mode, switch off";
Buildings.Controls.OBC.CDL.Integers.GreaterEqualThreshold havOcc(
final t=1) if have_occSen
"Check if there is occupant";
Buildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Subsequences.SupplyAirTemperature
TSupAir(
final have_cooCoi=cooCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased
or cooCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.DXCoil,
final have_heaCoi=heaCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased
or heaCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.Electric,
final TSupSet_max=TSupSet_max,
final uHea_max=uHeaFan_min,
final TSupSet_min=TSupSet_min,
final uCoo_max=uCooFan_min,
final heaDea=heaDea,
final cooDea=cooDea,
final cooCoiConTyp=cooCoiConTyp,
final kCooCoi=kCooCoi,
final TiCooCoi=TiCooCoi,
final TdCooCoi=TdCooCoi,
final heaCoiConTyp=heaCoiConTyp,
final kHeaCoi=kHeaCoi,
final TiHeaCoi=TiHeaCoi,
final TdHeaCoi=TdHeaCoi,
final deaHysLim=deaHysLim) "Supply air temperature setpoint controller";
Buildings.Controls.OBC.ASHRAE.G36.FanCoilUnits.Subsequences.FanSpeed fanSpe(
final have_cooCoi=cooCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.WaterBased
or cooCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.CoolingCoil.DXCoil,
final have_heaCoi=heaCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.WaterBased
or heaCoi == Buildings.Controls.OBC.ASHRAE.G36.Types.HeatingCoil.Electric,
final deaSpe=deaSpe,
final heaSpe_min=heaSpe_min,
final uHea_min=uHeaFan_min,
final heaSpe_max=heaSpe_max,
final uHea_max=uHeaFan_max,
final cooSpe_min=cooSpe_min,
final uCoo_min=uCooFan_min,
final cooSpe_max=cooSpe_max,
final uCoo_max=uCooFan_max,
final heaDea=heaDea,
final cooDea=cooDea,
final deaHysLim=deaHysLim) "Fan speed controller";
protected
Buildings.Controls.OBC.CDL.Logical.Sources.Constant win(
final k=false) if not have_winSen
"Window status";
equation
connect(unOccMod.y, isUnOcc.u2);
connect(isUnOcc.y, isOcc.u);
connect(TZon, cooPI.u_m);
connect(isOcc.y, heaPI.trigger);
connect(isOcc.y, cooPI.trigger);
connect(TZon, heaPI.u_m);
connect(modSetPoi.THeaSet, heaPI.u_s);
connect(modSetPoi.THeaSet, TZonHeaSet);
connect(modSetPoi.TCooSet, cooPI.u_s);
connect(modSetPoi.TCooSet, TZonCooSet);
connect(TZon, modSetPoi.TZon);
connect(tNexOcc, modSetPoi.tNexOcc);
connect(u1Occ, modSetPoi.u1Occ);
connect(modSetPoi.yOpeMod, isUnOcc.u1);
connect(win.y, modSetPoi.u1Win);
connect(u1Win, modSetPoi.u1Win);
connect(havOcc.y, modSetPoi.u1OccSen);
connect(modSetPoi.warUpTim, warUpTim);
connect(modSetPoi.cooDowTim, cooDowTim);
connect(modSetPoi.uCooDemLimLev, uCooDemLimLev);
connect(modSetPoi.uHeaDemLimLev, uHeaDemLimLev);
connect(TSupAir.yCooCoi, yCooCoi);
connect(TSupAir.yHeaCoi, yHeaCoi);
connect(TSupAir.TSupSet, TSupSet);
connect(fanSpe.yFan, yFan);
connect(fanSpe.y1Fan, y1Fan);
connect(modSetPoi.yOpeMod, fanSpe.opeMod);
connect(TSup, TSupAir.TAirSup);
connect(u1Fan, fanSpe.u1FanPro);
connect(heaPI.y, fanSpe.uHea);
connect(cooPI.y, fanSpe.uCoo);
connect(modSetPoi.TCooSet,TSupAir.TZonCooSet);
connect(modSetPoi.THeaSet,TSupAir.TZonHeaSet);
connect(cooPI.y, TSupAir.uCoo);
connect(heaPI.y, TSupAir.uHea);
connect(u1Fan, TSupAir.u1Fan);
connect(nOcc, havOcc.u);
connect(cooSetAdj, modSetPoi.cooSetAdj);
connect(heaSetAdj, modSetPoi.heaSetAdj);
connect(TSup, fcuPlaReq.TAirSup);
connect(fcuPlaReq.yChiWatResReq, yChiWatResReq);
connect(fcuPlaReq.yChiPlaReq, yChiPlaReq);
connect(fcuPlaReq.yHotWatResReq, yHotWatResReq);
connect(fcuPlaReq.yHotWatPlaReq, yHotWatPlaReq);
connect(TSupAir.TSupSet, fcuPlaReq.TAirSupSet);
connect(fanSpe.yFan, fcuPlaReq.uFan);
connect(TOccHeaSet, modSetPoi.TOccHeaSet);
connect(TOccCooSet, modSetPoi.TOccCooSet);
connect(TUnoHeaSet, modSetPoi.TUnoHeaSet);
connect(TUnoCooSet, modSetPoi.TUnoCooSet);
connect(TSupAir.yHeaCoi, fcuPlaReq.uHeaCoiSet);
connect(TSupAir.yCooCoi, fcuPlaReq.uCooCoiSet);
connect(setAdj, modSetPoi.setAdj);
end Controller;