| 1 | within ;
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| 2 | package IMC_DCBraking
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| 3 | extends Modelica.Icons.ExamplesPackage;
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| 4 |
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| 5 | partial model DCBraking_Template
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| 6 | "Induction machine with DC current braking"
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| 7 | extends Modelica.Icons.Example;
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| 8 | import Modelica.Constants.pi;
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| 9 | constant Integer m=3 "Number of phases";
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| 10 | parameter Modelica.SIunits.Current INominal=100 "Nominal RMS current per phase";
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| 11 | parameter Modelica.SIunits.Current Idc "DC braking current";
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| 12 | parameter Modelica.SIunits.Current is[3] "Phase currents";
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| 13 | parameter Modelica.SIunits.AngularVelocity w0(displayUnit="rev/min")=
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| 14 | 2*pi*imcData.fsNominal/imcData.p "Initial mehcanical speed";
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| 15 | parameter Modelica.SIunits.Inertia JLoad=4*imcData.Jr
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| 16 | "Load's moment of inertia";
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| 17 | Modelica.SIunits.Torque tauElectrical=imc.tauElectrical "Electrical torque";
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| 18 | Modelica.SIunits.Torque tauShaft=imc.tauShaft "Shaft torque";
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| 19 | Modelica.SIunits.AngularVelocity wMechanical(displayUnit="rev/min") = imc.wMechanical
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| 20 | "Shaft speed";
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| 21 | parameter
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| 22 | Modelica.Electrical.Machines.Utilities.ParameterRecords.AIM_SquirrelCageData
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| 23 | imcData annotation (Placement(transformation(extent={{20,-40},{40,-20}})));
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| 24 | Modelica.Electrical.Machines.BasicMachines.AsynchronousInductionMachines.AIM_SquirrelCage
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| 25 | imc(
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| 26 | p=imcData.p,
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| 27 | fsNominal=imcData.fsNominal,
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| 28 | Rs=imcData.Rs,
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| 29 | TsRef=imcData.TsRef,
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| 30 | alpha20s(displayUnit="1/K") = imcData.alpha20s,
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| 31 | Lssigma=imcData.Lssigma,
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| 32 | Jr=imcData.Jr,
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| 33 | Js=imcData.Js,
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| 34 | Lszero=imcData.Lszero,
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| 35 | frictionParameters=imcData.frictionParameters,
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| 36 | phiMechanical(fixed=true, start=0),
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| 37 | wMechanical(fixed=true, start=w0),
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| 38 | statorCoreParameters=imcData.statorCoreParameters,
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| 39 | strayLoadParameters=imcData.strayLoadParameters,
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| 40 | Lm=imcData.Lm,
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| 41 | Lrsigma=imcData.Lrsigma,
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| 42 | Rr=imcData.Rr,
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| 43 | TrRef=imcData.TrRef,
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| 44 | TsOperational=293.15,
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| 45 | alpha20r=imcData.alpha20r,
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| 46 | TrOperational=293.15)
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| 47 | annotation (Placement(transformation(extent={{20,-10},{40,10}})));
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| 48 | Modelica.Mechanics.Rotational.Components.Inertia loadInertia(J=JLoad)
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| 49 | annotation (Placement(transformation(extent={{50,-10},{70,10}})));
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| 50 | Modelica.Electrical.Machines.Utilities.TerminalBox
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| 51 | terminalBox(m=m)
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| 52 | annotation (Placement(transformation(extent={{20,6},{40,26}})));
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| 53 | Modelica.Electrical.MultiPhase.Basic.PlugToPin_p plugToPin1(m=m, k=1)
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| 54 | annotation (Placement(transformation(extent={{-20,70},{-40,90}})));
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| 55 | Modelica.Electrical.MultiPhase.Basic.PlugToPin_p plugToPin2(m=m, k=2)
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| 56 | annotation (Placement(transformation(extent={{-20,30},{-40,50}})));
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| 57 | Modelica.Electrical.Analog.Sources.ConstantCurrent
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| 58 | constantCurrent(I=Idc)
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| 59 | annotation (Placement(transformation(
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| 60 | extent={{-10,-10},{10,10}},
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| 61 | rotation=90,
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| 62 | origin={-50,62})));
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| 63 | Modelica.Electrical.Analog.Basic.Ground ground
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| 64 | annotation (Placement(transformation(extent={{-70,20},{-50,40}})));
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| 65 | initial equation
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| 66 | der(imc.idq_rs[1])=0;
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| 67 | der(imc.idq_rs[2])=0;
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| 68 | equation
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| 69 | connect(imc.flange, loadInertia.flange_a)
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| 70 | annotation (Line(points={{40,0},{50,0}}, color={0,0,0}));
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| 71 | connect(plugToPin1.pin_p, constantCurrent.n)
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| 72 | annotation (Line(points={{-32,80},{-50,80},{-50,72}}, color={0,0,255}));
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| 73 | connect(plugToPin2.pin_p, constantCurrent.p)
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| 74 | annotation (Line(points={{-32,40},{-50,40},{-50,52}}, color={0,0,255}));
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| 75 | connect(plugToPin2.plug_p, plugToPin1.plug_p) annotation (Line(points={{-28,40},
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| 76 | {-20,40},{-20,80},{-28,80}}, color={0,0,255}));
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| 77 | connect(terminalBox.plug_sn, imc.plug_sn)
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| 78 | annotation (Line(points={{24,10},{24,10}}, color={0,0,255}));
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| 79 | connect(terminalBox.plug_sp, imc.plug_sp)
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| 80 | annotation (Line(points={{36,10},{36,10}}, color={0,0,255}));
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| 81 | connect(plugToPin2.plug_p, terminalBox.plugSupply)
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| 82 | annotation (Line(points={{-28,40},{30,40},{30,12}}, color={0,0,255}));
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| 83 | connect(plugToPin2.pin_p, ground.p)
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| 84 | annotation (Line(points={{-32,40},{-60,40}}, color={0,0,255}));
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| 85 | annotation (experiment(
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| 86 | StopTime=25,
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| 87 | Interval=0.001,
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| 88 | Tolerance=1e-06,
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| 89 | __Dymola_Algorithm="Dassl"), Documentation(info="<html>
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| 90 | <p>
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| 91 | The stator windings of an induction machine are fed by a DC current, causing a stationary current space phasor.
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| 92 | Since the rotor is turning, voltage is induced in the rotor cage which in turn drives rotor currents.
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| 93 | This creates a braking torque.
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| 94 | </p>
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| 95 | <p>
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| 96 | Choose a layout and plot tauElectrical and tauShaft versus wMechanical.
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| 97 | </p>
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| 98 | <p>Default machine parameters are used.</p>
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| 99 | <h4>References</h4>
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| 100 | <table border=\"0\" cellspacing=\"0\" cellpadding=\"2\">
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| 101 | <tr>
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| 102 | <td>[Fischer2017]</td>
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| 103 | <td>R. Fischer,
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| 104 | Elektrische Maschinen, 17<sup>th</sup> ed., chapter 5.3.3.,
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| 105 | <em>Hanser</em>,
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| 106 | ISBN 978-3-446-45218-3, 2017.</td>
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| 107 | </tr>
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| 108 | </html>"));
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| 109 | end DCBraking_Template;
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| 110 |
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| 111 | model DCBraking_Y3 "Induction machine with DC current braking"
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| 112 | extends DCBraking_Template(
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| 113 | terminalBox(terminalConnection="Y"),
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| 114 | Idc=INominal*sqrt(2),
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| 115 | is=Idc*{1,-1/2,-1/2});
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| 116 | Modelica.Electrical.MultiPhase.Basic.PlugToPin_p plugToPin3(m=m, k=3)
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| 117 | annotation (Placement(transformation(extent={{-20,-10},{-40,10}})));
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| 118 | initial equation
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| 119 | imc.is[2]=is[2];
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| 120 | equation
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| 121 | connect(plugToPin2.plug_p, plugToPin3.plug_p) annotation (Line(points={{-28,40},
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| 122 | {-20,40},{-20,0},{-28,0}}, color={0,0,255}));
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| 123 | connect(constantCurrent.p, plugToPin3.pin_p)
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| 124 | annotation (Line(points={{-50,52},{-50,0},{-32,0}}, color={0,0,255}));
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| 125 | annotation (experiment(
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| 126 | StopTime=25,
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| 127 | Interval=0.001,
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| 128 | Tolerance=1e-06,
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| 129 | __Dymola_Algorithm="Dassl"), Documentation(info="<html>
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| 130 | <p>
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| 131 | The stator windings of an induction machine are fed by a DC current, causing a stationary current space phasor.
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| 132 | Since the rotor is turning, voltage is induced in the rotor cage which in turn drives rotor currents.
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| 133 | This creates a braking torque.
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| 134 | </p>
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| 135 | <p>
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| 136 | Choose a layout and plot tauElectrical and tauShaft versus wMechanical.
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| 137 | </p>
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| 138 | <p>Default machine parameters are used.</p>
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| 139 | <h4>References</h4>
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| 140 | <table border=\"0\" cellspacing=\"0\" cellpadding=\"2\">
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| 141 | <tr>
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| 142 | <td>[Fischer2017]</td>
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| 143 | <td>R. Fischer,
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| 144 | Elektrische Maschinen, 17<sup>th</sup> ed., chapter 5.3.3.,
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| 145 | <em>Hanser</em>,
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| 146 | ISBN 978-3-446-45218-3, 2017.</td>
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| 147 | </tr>
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| 148 | </html>"));
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| 149 | end DCBraking_Y3;
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| 150 |
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| 151 | model DCBraking_Y2 "Induction machine with DC current braking"
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| 152 | extends DCBraking_Template(
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| 153 | terminalBox(terminalConnection="Y"),
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| 154 | Idc=INominal*sqrt(3/2),
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| 155 | is=Idc*{1,-1,0});
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| 156 | initial equation
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| 157 | annotation (experiment(
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| 158 | StopTime=25,
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| 159 | Interval=0.001,
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| 160 | Tolerance=1e-06,
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| 161 | __Dymola_Algorithm="Dassl"), Documentation(info="<html>
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| 162 | <p>
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| 163 | The stator windings of an induction machine are fed by a DC current, causing a stationary current space phasor.
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| 164 | Since the rotor is turning, voltage is induced in the rotor cage which in turn drives rotor currents.
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| 165 | This creates a braking torque.
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| 166 | </p>
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| 167 | <p>
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| 168 | Choose a layout and plot tauElectrical and tauShaft versus wMechanical.
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| 169 | </p>
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| 170 | <p>Default machine parameters are used.</p>
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| 171 | <h4>References</h4>
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| 172 | <table border=\"0\" cellspacing=\"0\" cellpadding=\"2\">
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| 173 | <tr>
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| 174 | <td>[Fischer2017]</td>
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| 175 | <td>R. Fischer,
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| 176 | Elektrische Maschinen, 17<sup>th</sup> ed., chapter 5.3.3.,
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| 177 | <em>Hanser</em>,
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| 178 | ISBN 978-3-446-45218-3, 2017.</td>
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| 179 | </tr>
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| 180 | </html>"));
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| 181 | end DCBraking_Y2;
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| 182 |
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| 183 | model DCBraking_D2 "Induction machine with DC current braking"
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| 184 | extends DCBraking_Template(
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| 185 | terminalBox(terminalConnection="D"),
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| 186 | Idc=INominal*3/sqrt(2),
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| 187 | is=Idc*{2/3,-1/3,-1/3});
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| 188 | initial equation
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| 189 | imc.is[2]=is[2];
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| 190 | annotation (experiment(
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| 191 | StopTime=25,
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| 192 | Interval=0.001,
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| 193 | Tolerance=1e-06,
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| 194 | __Dymola_Algorithm="Dassl"), Documentation(info="<html>
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| 195 | <p>
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| 196 | The stator windings of an induction machine are fed by a DC current, causing a stationary current space phasor.
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| 197 | Since the rotor is turning, voltage is induced in the rotor cage which in turn drives rotor currents.
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| 198 | This creates a braking torque.
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| 199 | </p>
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| 200 | <p>
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| 201 | Choose a layout and plot tauElectrical and tauShaft versus wMechanical.
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| 202 | </p>
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| 203 | <p>Default machine parameters are used.</p>
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| 204 | <h4>References</h4>
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| 205 | <table border=\"0\" cellspacing=\"0\" cellpadding=\"2\">
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| 206 | <tr>
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| 207 | <td>[Fischer2017]</td>
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| 208 | <td>R. Fischer,
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| 209 | Elektrische Maschinen, 17<sup>th</sup> ed., chapter 5.3.3.,
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| 210 | <em>Hanser</em>,
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| 211 | ISBN 978-3-446-45218-3, 2017.</td>
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| 212 | </tr>
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| 213 | </html>"));
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| 214 | end DCBraking_D2;
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| 215 |
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| 216 | model DCBraking_D3 "Induction machine with DC current braking"
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| 217 | extends DCBraking_Template(
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| 218 | terminalBox(terminalConnection="D"),
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| 219 | Idc=INominal*sqrt(6),
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| 220 | is=Idc*{1/2,-1/2,0});
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| 221 | Modelica.Electrical.MultiPhase.Basic.PlugToPin_p plugToPin3(m=m, k=3)
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| 222 | annotation (Placement(transformation(extent={{-20,-10},{-40,10}})));
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| 223 | initial equation
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| 224 | der(imc.idq_ss[1])=0;
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| 225 | der(imc.idq_ss[2])=0;
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| 226 | equation
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| 227 | connect(plugToPin2.plug_p, plugToPin3.plug_p) annotation (Line(points={{-28,40},
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| 228 | {-20,40},{-20,0},{-28,0}}, color={0,0,255}));
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| 229 | connect(constantCurrent.p, plugToPin3.pin_p)
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| 230 | annotation (Line(points={{-50,52},{-50,0},{-32,0}}, color={0,0,255}));
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| 231 | annotation (experiment(
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| 232 | StopTime=25,
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| 233 | Interval=0.001,
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| 234 | Tolerance=1e-06,
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| 235 | __Dymola_Algorithm="Dassl"), Documentation(info="<html>
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| 236 | <p>
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| 237 | The stator windings of an induction machine are fed by a DC current, causing a stationary current space phasor.
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| 238 | Since the rotor is turning, voltage is induced in the rotor cage which in turn drives rotor currents.
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| 239 | This creates a braking torque.
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| 240 | </p>
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| 241 | <p>
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| 242 | Choose a layout and plot tauElectrical and tauShaft versus wMechanical.
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| 243 | </p>
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| 244 | <p>Default machine parameters are used.</p>
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| 245 | <h4>References</h4>
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| 246 | <table border=\"0\" cellspacing=\"0\" cellpadding=\"2\">
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| 247 | <tr>
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| 248 | <td>[Fischer2017]</td>
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| 249 | <td>R. Fischer,
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| 250 | Elektrische Maschinen, 17<sup>th</sup> ed., chapter 5.3.3.,
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| 251 | <em>Hanser</em>,
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| 252 | ISBN 978-3-446-45218-3, 2017.</td>
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| 253 | </tr>
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| 254 | </html>"));
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| 255 | end DCBraking_D3;
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| 256 | annotation (uses(Modelica(version="3.2.3")));
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| 257 | end IMC_DCBraking;
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