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PartialBasicInductionMachine.mo
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PartialBasicInductionMachine.mo
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within Modelica.Electrical.Machines.Interfaces;
partial model PartialBasicInductionMachine
"Partial model for induction machine"
final parameter Integer m=3 "Number of phases" annotation(Evaluate=true);
parameter Integer p(min=1, start=2) "Number of pole pairs (Integer)";
parameter SI.Frequency fsNominal(start=50)
"Nominal frequency";
parameter SI.Temperature TsOperational(start=293.15)
"Operational temperature of stator resistance" annotation (Dialog(group=
"Operational temperatures", enable=not useThermalPort));
parameter SI.Resistance Rs(start=0.03*ZsRef)
"Stator resistance per phase at TRef"
annotation (Dialog(tab="Nominal resistances and inductances"));
parameter SI.Temperature TsRef(start=293.15)
"Reference temperature of stator resistance"
annotation (Dialog(tab="Nominal resistances and inductances"));
parameter Machines.Thermal.LinearTemperatureCoefficient20 alpha20s(start=0)
"Temperature coefficient of stator resistance at 20 degC"
annotation (Dialog(tab="Nominal resistances and inductances"));
parameter SI.Inductance Lszero=Lssigma
"Stator zero sequence inductance"
annotation (Dialog(tab="Nominal resistances and inductances"));
parameter SI.Inductance Lssigma(start=3*ZsRef*(1 - sqrt(1 -
0.0667))/(2*pi*fsNominal)) "Stator stray inductance per phase"
annotation (Dialog(tab="Nominal resistances and inductances"));
extends PartialBasicMachine(
Jr(start=0.29),
frictionParameters(wRef=2*pi*fsNominal/p),
friction(final useHeatPort=true));
parameter Machines.Losses.CoreParameters statorCoreParameters(
final m=3,
VRef(start=100),
wRef=2*pi*fsNominal)
"Stator core loss parameter record; all parameters refer to stator side"
annotation (Dialog(tab="Losses"));
parameter Machines.Losses.StrayLoadParameters strayLoadParameters(IRef(start=
100), wRef=2*pi*fsNominal/p) "Stray load loss parameter record"
annotation (Dialog(tab="Losses"));
replaceable output
Machines.Interfaces.InductionMachines.PartialPowerBalanceInductionMachines powerBalance(
final powerStator=Machines.SpacePhasors.Functions.activePower(vs, is),
final powerMechanical=wMechanical*tauShaft,
final powerInertiaStator=inertiaStator.J*inertiaStator.a*inertiaStator.w,
final powerInertiaRotor=inertiaRotor.J*inertiaRotor.a*inertiaRotor.w,
final lossPowerStatorWinding=sum(rs.resistor.LossPower),
final lossPowerStatorCore=statorCore.lossPower,
final lossPowerStrayLoad=strayLoad.lossPower,
final lossPowerFriction=friction.lossPower) "Power balance";
output SI.Voltage vs[m]=plug_sp.pin.v - plug_sn.pin.v
"Stator instantaneous voltages";
output SI.Current is[m]=plug_sp.pin.i
"Stator instantaneous currents";
output SI.Current i_0_s(stateSelect=StateSelect.prefer)=
spacePhasorS.zero.i "Stator zero-sequence current";
// to be defined in model that extends from this partial (since airgap isn't included here)
input SI.Current idq_ss[2]
"Stator space phasor current / stator fixed frame";
input SI.Current idq_sr[2](each stateSelect=StateSelect.prefer)
"Stator space phasor current / rotor fixed frame";
input SI.Current idq_rs[2]
"Rotor space phasor current / stator fixed frame";
input SI.Current idq_rr[2](each stateSelect=StateSelect.prefer)
"Rotor space phasor current / rotor fixed frame";
Modelica.Electrical.Polyphase.Interfaces.PositivePlug plug_sp(final m=m)
"Positive stator plug" annotation (Placement(transformation(extent={{50,
90},{70,110}})));
Modelica.Electrical.Polyphase.Interfaces.NegativePlug plug_sn(final m=m)
"Negative stator plug" annotation (Placement(transformation(extent={{-70,
90},{-50,110}})));
Modelica.Electrical.Polyphase.Basic.Resistor rs(
final m=m,
final R=fill(Rs, m),
final T_ref=fill(TsRef, m),
final alpha=fill(Machines.Thermal.convertAlpha(alpha20s, TsRef), m),
final useHeatPort=true,
final T=fill(TsRef, m)) annotation (Placement(transformation(extent={{
60,70},{40,90}})));
Machines.BasicMachines.Components.Inductor lssigma(final L=fill(Lssigma, 2))
annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=270,
origin={20,20})));
Modelica.Electrical.Analog.Basic.Inductor lszero(final L=Lszero)
annotation (Placement(transformation(extent={{0,40},{-20,60}})));
Machines.Losses.InductionMachines.Core statorCore(
final coreParameters=statorCoreParameters,
final useHeatPort=true,
final turnsRatio=1) annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=180,
origin={0,30})));
Machines.SpacePhasors.Components.SpacePhasor spacePhasorS(final turnsRatio=1)
annotation (Placement(transformation(
origin={0,70},
extent={{10,10},{-10,-10}},
rotation=90)));
Machines.Losses.InductionMachines.StrayLoad strayLoad(
final strayLoadParameters=strayLoadParameters,
final useHeatPort=true,
final m=m) annotation (Placement(transformation(extent={{90,70},{70,90}})));
replaceable
Machines.Interfaces.InductionMachines.PartialThermalPortInductionMachines thermalPort(final m=m)
if useThermalPort
annotation (Placement(transformation(extent={{-10,-110},{10,-90}})));
replaceable
Machines.Interfaces.InductionMachines.PartialThermalAmbientInductionMachines
thermalAmbient(
final useTemperatureInputs=false,
final Ts=TsOperational,
final m=m) if not useThermalPort annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=270,
origin={-30,-80})));
protected
final parameter SI.Impedance ZsRef = 1 "Reference phase impedance based on nominal voltage 100 V and nominal current 100 A; per phase";
constant Real pi = Modelica.Constants.pi;
replaceable
Machines.Interfaces.InductionMachines.PartialThermalPortInductionMachines internalThermalPort(final m=m)
annotation (Placement(transformation(extent={{-4,-84},{4,-76}})));
equation
connect(spacePhasorS.plug_n, plug_sn) annotation (Line(
points={{-10,80},{-60,80},{-60,100}}, color={0,0,255}));
connect(strayLoad.plug_n, rs.plug_p) annotation (Line(
points={{70,80},{60,80}}, color={0,0,255}));
connect(strayLoad.plug_p, plug_sp) annotation (Line(
points={{90,80},{90,100},{60,100}}, color={0,0,255}));
connect(strayLoad.support, internalSupport) annotation (Line(
points={{80,70},{80,50},{60,50},{60,-100}}));
connect(spacePhasorS.plug_p, rs.plug_n) annotation (Line(
points={{10,80},{40,80}}, color={0,0,255}));
connect(spacePhasorS.zero, lszero.p) annotation (Line(
points={{0,60},{0,50}}, color={0,0,255}));
connect(lszero.n, spacePhasorS.ground) annotation (Line(
points={{-20,50},{-20,60},{-10,60}}, color={0,0,255}));
connect(spacePhasorS.spacePhasor, lssigma.spacePhasor_a) annotation (Line(
points={{10,60},{20,60},{20,30}}, color={0,0,255}));
connect(statorCore.spacePhasor, lssigma.spacePhasor_a) annotation (Line(
points={{10,30},{20,30}}, color={0,0,255}));
connect(statorCore.heatPort, internalThermalPort.heatPortStatorCore)
annotation (Line(
points={{10,40},{50,40},{50,-79.2},{0.4,-79.2}}, color={191,0,0}));
connect(strayLoad.heatPort, internalThermalPort.heatPortStrayLoad)
annotation (Line(
points={{90,70},{90,60},{50,60},{50,-80},{0.4,-80}}, color={191,0,0}));
connect(rs.heatPort, internalThermalPort.heatPortStatorWinding)
annotation (Line(
points={{50,70},{50,-79.2},{-0.4,-79.2}}, color={191,0,0}));
connect(friction.heatPort, internalThermalPort.heatPortFriction)
annotation (Line(
points={{80,-50},{50,-50},{50,-81.6},{0,-81.6}}, color={191,0,0}));
connect(strayLoad.flange, inertiaRotor.flange_b) annotation (Line(
points={{80,90},{100,90},{100,40},{90,40},{90,0}}));
connect(internalThermalPort, thermalPort)
annotation (Line(points={{0,-80},{0,-80},{0,-100}}, color={191,0,0}));
connect(thermalAmbient.thermalPort, internalThermalPort) annotation (Line(
points={{-20,-80},{-12,-80},{0,-80}}, color={191,0,0}));
annotation (Documentation(info="<html>
Partial model for induction machine models
</html>"),
Icon(coordinateSystem(preserveAspectRatio=true, extent={{-100,-100},
{100,100}}),graphics={Line(points={{-50,100},{-20,100},{-20,70}},
color={0,0,255}), Line(points={{50,100},{20,100},{20,70}},
color={0,0,255})}));
end PartialBasicInductionMachine;