Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples

Name	Description
FixedVoltageSource	This example illustrates how using a fixed voltage source
PVPanels	This example illustrates how to use PV panel models
PVPanels_N	This example illustrates how to use PV panel models with neutral cable
WindTurbine	Example for the WindTurbine AC model
WindTurbine_N	Example for the WindTurbine AC model with neutral cable

model FixedVoltageSource "This example illustrates how using a fixed voltage source" extends Modelica.Icons.Example; FixedVoltage grid( f=60, V=480, definiteReference=true, phiSou=0.17453292519943) "AC one phase electrical grid"; Sensors.ProbeWye sen(V_nominal=480) "Probe that measures the voltage at the load"; Loads.Inductive loa(P_nominal=-2000, V_nominal=480) "Inductive load"; FixedVoltage_N grid_N( f=60, V=480, definiteReference=true, phiSou=0.17453292519943) "AC one phase electrical grid"; Sensors.ProbeWye_N sen_N(V_nominal=480) "Probe that measures the voltage at the load"; Loads.Inductive_N loa_N(P_nominal=-2000, V_nominal=480) "Inductive load"; equation connect(grid.terminal, loa.terminal); connect(grid.terminal, sen.term); connect(grid_N.terminal, loa_N.terminal); connect(grid_N.terminal, sen_N.term); end FixedVoltageSource;

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels

Information

This example shows how to use a simple PV model without orientation as well as a PV model with orientation. The power produced by the PV is partially consumed by the load, and the remaining part is fed into the grid.

The PV produces different amounts of power on each phase according to the fractions specified by the vector areaFraction={0.5,0.3,0.2}. In this example, 50% of the power generation is on phase 1, 30% on phase 2 and 20% on phase 3.

Modelica definition

model PVPanels "This example illustrates how to use PV panel models" extends Modelica.Icons.Example; ThreePhasesUnbalanced.Loads.Inductive RL( mode=Types.Load.VariableZ_y_input, P_nominal=-2000, V_nominal=480, plugPhase3=false) "Load taht consumes the power generted by the PVs"; ThreePhasesUnbalanced.Sources.Grid grid(f=60, V=480) "Electrical grid model"; Modelica.Blocks.Sources.Constant load(k=0.5) "Load consumption"; BoundaryConditions.SolarIrradiation.DiffusePerez HDifTil( til=0.34906585039887, lat=0.65798912800186, azi=-0.78539816339745) "Diffuse irradiation on tilted surface"; BoundaryConditions.SolarIrradiation.DirectTiltedSurface HDirTil( til=0.34906585039887, lat=0.65798912800186, azi=-0.78539816339745) "Direct irradiation on tilted surface"; BoundaryConditions.WeatherData.ReaderTMY3 weaDat( computeWetBulbTemperature=false, filNam="modelica://Buildings/Resources/weatherdata/USA_CA_San.Francisco.Intl.AP.724940_TMY3.mos"); Modelica.Blocks.Math.Add G "Total irradiation on tilted surface"; PVsimple pvSimple( V_nominal=480, A=100, areaFraction={0.5,0.3,0.2}) "PV array simplified"; PVsimpleOriented pvOriented( V_nominal=480, A=100, til=0.34906585039887, lat=0.65798912800186, azi=-0.78539816339745, areaFraction={0.5,0.3,0.2}) "PV array oriented"; equation connect(weaDat.weaBus,HDifTil. weaBus); connect(weaDat.weaBus,HDirTil. weaBus); connect(HDifTil.H,G. u1); connect(HDirTil.H,G. u2); connect(G.y,pvSimple. G); connect(weaDat.weaBus, pvOriented.weaBus); connect(load.y, RL.y2); connect(load.y, RL.y1); connect(grid.terminal, RL.terminal); connect(grid.terminal, pvOriented.terminal); connect(grid.terminal, pvSimple.terminal); end PVPanels;

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.PVPanels_N

Information

This example shows how to use a simple PV model with neutral cable connection and without orientation as well as a PV model with orientation. The power produced by the PV is partially consumed by the load, and the remaining part is fed into the grid.

The PV produces different amounts of power on each phase according to the fractions specified by the vector areaFraction={0.4,0.0,0.6}. In this example, 40% of the power generation is on phase 1, 0% on phase 2 (disconnected) and 60% on phase 3.

Modelica definition

model PVPanels_N "This example illustrates how to use PV panel models with neutral cable" extends Modelica.Icons.Example; ThreePhasesUnbalanced.Loads.Inductive_N RL( mode=Types.Load.VariableZ_y_input, P_nominal=-2000, V_nominal=480, plugPhase3=false) "Load taht consumes the power generted by the PVs"; ThreePhasesUnbalanced.Sources.Grid_N grid(f=60, V=480) "Electrical grid model"; Modelica.Blocks.Sources.Constant load(k=0.5) "Load consumption"; BoundaryConditions.SolarIrradiation.DiffusePerez HDifTil( til=0.34906585039887, lat=0.65798912800186, azi=-0.78539816339745) "Diffuse irradiation on tilted surface"; BoundaryConditions.SolarIrradiation.DirectTiltedSurface HDirTil( til=0.34906585039887, lat=0.65798912800186, azi=-0.78539816339745) "Direct irradiation on tilted surface"; BoundaryConditions.WeatherData.ReaderTMY3 weaDat( computeWetBulbTemperature=false, filNam="modelica://Buildings/Resources/weatherdata/USA_CA_San.Francisco.Intl.AP.724940_TMY3.mos"); Modelica.Blocks.Math.Add G "Total irradiation on tilted surface"; PVsimple_N pvSimple( V_nominal=480, A=100, plugPhase2=false, areaFraction={0.4,0.0,0.6}) "PV array simplified"; PVsimpleOriented_N pvOriented( V_nominal=480, A=100, plugPhase2=false, til=0.34906585039887, lat=0.65798912800186, azi=-0.78539816339745, areaFraction={0.4,0.0,0.6}) "PV array oriented"; equation connect(weaDat.weaBus,HDifTil. weaBus); connect(weaDat.weaBus,HDirTil. weaBus); connect(HDifTil.H,G. u1); connect(HDirTil.H,G. u2); connect(G.y,pvSimple. G); connect(weaDat.weaBus, pvOriented.weaBus); connect(load.y, RL.y2); connect(load.y, RL.y1); connect(grid.terminal, RL.terminal); connect(grid.terminal, pvOriented.terminal); connect(grid.terminal, pvSimple.terminal); end PVPanels_N;

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.WindTurbine

Information

This model illustrates the use of the wind turbine model, which is connected to a AC voltage source and a resistive load. This voltage source can represent the grid to which the circuit is connected. Wind data for San Francisco, CA, are used. The turbine cut-in wind speed is 3.5 m/s, and hence it is off in the first day when the wind speed is low.

The wind turbines produce different amounts of power on each phase according to the fractions specified by the vector scaleFraction={0.5,0.25,0.25}. In this example, 50% of the power generation is on phase 1, 30% on phase 2 and 20% on phase 3. As expected the phase with the higher power production has the higher voltage deviation from the nominal condition.

Connectors

Modelica definition

Type	Name	Description
Bus	weaBus	Weather bus

model WindTurbine "Example for the WindTurbine AC model" extends Modelica.Icons.Example; Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.WindTurbine tur( table=[3.5, 0; 5.5, 100; 12, 900; 14, 1000; 25, 1000], h=10, scale=10, V_nominal=480, scaleFraction={0.5,0.25,0.25}) "Wind turbine"; Buildings.BoundaryConditions.WeatherData.ReaderTMY3 weaDat( computeWetBulbTemperature=false, filNam="modelica://Buildings/Resources/weatherdata/USA_CA_San.Francisco.Intl.AP.724940_TMY3.mos") "Weather data"; Buildings.BoundaryConditions.WeatherData.Bus weaBus "Weather bus"; Loads.Resistive res(P_nominal=-500, V_nominal=480) "Resistive line"; Grid sou(f=60, V=480) "Voltage source"; Sensors.GeneralizedSensor sen "Generalized sensor"; Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Line line( l=200, P_nominal=5000, V_nominal=480); equation connect(weaDat.weaBus,weaBus); connect(weaBus.winSpe,tur. vWin); connect(sou.terminal, res.terminal); connect(sen.terminal_p, tur.terminal); connect(sou.terminal, line.terminal_n); connect(line.terminal_p, sen.terminal_n); end WindTurbine;

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.WindTurbine_N

Information

This model illustrates the use of the wind turbine model with neutral cable, which is connected to a AC voltage source and a resistive load. This voltage source can represent the grid to which the circuit is connected. Wind data for San Francisco, CA, are used. The turbine cut-in wind speed is 3.5 m/s, and hence it is off in the first day when the wind speed is low.

The wind turbines produce different amounts of power on each phase according to the fractions specified by the vector scaleFraction={0.4,0.0,0.6}. In this example, 40% of the power generation is on phase 1, 0% on phase 2 (disconnected) and 60% on phase 3. As expected the phase with the higher power production has the higher voltage deviation from the nominal condition.

Connectors

Modelica definition

Type	Name	Description
Bus	weaBus	Weather bus

model WindTurbine_N "Example for the WindTurbine AC model with neutral cable" extends Modelica.Icons.Example; Buildings.Electrical.AC.ThreePhasesUnbalanced.Sources.WindTurbine_N tur( table=[3.5, 0; 5.5, 100; 12, 900; 14, 1000; 25, 1000], h=10, scale=10, V_nominal=480, plugPhase2=false, scaleFraction={0.4,0.0,0.6}) "Wind turbine"; Buildings.BoundaryConditions.WeatherData.ReaderTMY3 weaDat( computeWetBulbTemperature=false, filNam="modelica://Buildings/Resources/weatherdata/USA_CA_San.Francisco.Intl.AP.724940_TMY3.mos") "Weather data"; Buildings.BoundaryConditions.WeatherData.Bus weaBus "Weather bus"; Loads.Resistive_N res(P_nominal=-500, V_nominal=480) "Resistive line"; Grid_N sou(f=60, V=480) "Voltage source"; Sensors.GeneralizedSensor_N sen "Generalized sensor"; Buildings.Electrical.AC.ThreePhasesUnbalanced.Lines.Line_N line( l=200, P_nominal=5000, V_nominal=480); equation connect(weaDat.weaBus,weaBus); connect(weaBus.winSpe,tur. vWin); connect(tur.terminal, sen.terminal_p); connect(sen.terminal_n, line.terminal_p); connect(line.terminal_n, sou.terminal); connect(res.terminal, sou.terminal); end WindTurbine_N;