| 1 | within ;
|
|---|
| 2 | model TestIndexReduction4
|
|---|
| 3 | extends Modelica.Icons.Example;
|
|---|
| 4 | import Modelica.Constants.pi;
|
|---|
| 5 | import Modelica.Electrical.MultiPhase.Functions.factorY2DC;
|
|---|
| 6 | constant Integer m=3 "Number of phases";
|
|---|
| 7 | parameter Modelica.SIunits.Voltage VNominal=400
|
|---|
| 8 | "Nominal RMS voltage per phase";
|
|---|
| 9 | parameter Modelica.SIunits.Frequency fNominal=50 "Nominal frequency";
|
|---|
| 10 | parameter Modelica.SIunits.Resistance RGrid=10e-3 "Grid choke resistance";
|
|---|
| 11 | parameter Modelica.SIunits.Resistance RLoad=1 "Load resistance";
|
|---|
| 12 | parameter Modelica.SIunits.Inductance LGrid=500e-6 "Grid choke inductance";
|
|---|
| 13 | parameter Modelica.SIunits.Voltage VDC=factorY2DC(m)*VNominal/sqrt(3) "Theoretical DC voltage";
|
|---|
| 14 | parameter Modelica.SIunits.Capacitance CDC=5e-3 "DC capacitor";
|
|---|
| 15 | parameter Modelica.SIunits.Torque TLoad=161.4 "Nominal load torque";
|
|---|
| 16 | parameter Modelica.SIunits.AngularVelocity wLoad=1440.45*2*pi/60 "Nominal load speed";
|
|---|
| 17 | parameter Modelica.SIunits.Inertia JLoad=0.29 "Load's moment of inertia";
|
|---|
| 18 | Modelica.Electrical.MultiPhase.Sources.SineVoltage sineVoltage(
|
|---|
| 19 | final m=m,
|
|---|
| 20 | final phase=-Modelica.Electrical.MultiPhase.Functions.symmetricOrientation(
|
|---|
| 21 | m),
|
|---|
| 22 | final freqHz=fill(fNominal, m),
|
|---|
| 23 | final offset=zeros(m),
|
|---|
| 24 | final startTime=zeros(m),
|
|---|
| 25 | final V=fill(VNominal*sqrt(2/3), m)) annotation (Placement(transformation(
|
|---|
| 26 | extent={{-10,-10},{10,10}},
|
|---|
| 27 | rotation=270,
|
|---|
| 28 | origin={-80,-30})));
|
|---|
| 29 | Modelica.Electrical.MultiPhase.Basic.Star star(m=m) annotation (Placement(
|
|---|
| 30 | transformation(
|
|---|
| 31 | extent={{-10,-10},{10,10}},
|
|---|
| 32 | rotation=270,
|
|---|
| 33 | origin={-80,-60})));
|
|---|
| 34 | Modelica.Electrical.Analog.Basic.Ground ground annotation (Placement(
|
|---|
| 35 | transformation(origin={-80,-90}, extent={{-10,-10},{10,10}})));
|
|---|
| 36 | Modelica.Electrical.Machines.Sensors.CurrentQuasiRMSSensor gridCurrent
|
|---|
| 37 | annotation (Placement(transformation(
|
|---|
| 38 | extent={{-10,10},{10,-10}},
|
|---|
| 39 | rotation=270,
|
|---|
| 40 | origin={-80,0})));
|
|---|
| 41 | Modelica.Electrical.MultiPhase.Basic.Resistor resistor(
|
|---|
| 42 | final m=m,
|
|---|
| 43 | final R=fill(RGrid, m),
|
|---|
| 44 | final T_ref=fill(20, m),
|
|---|
| 45 | final alpha=zeros(m),
|
|---|
| 46 | final T=fill(20, m)) annotation (Placement(transformation(
|
|---|
| 47 | extent={{-10,-10},{10,10}},
|
|---|
| 48 | rotation=90,
|
|---|
| 49 | origin={-80,30})));
|
|---|
| 50 | Modelica.Electrical.MultiPhase.Basic.Inductor inductor(m=m, final L=fill(
|
|---|
| 51 | LGrid, m)) annotation (Placement(transformation(
|
|---|
| 52 | extent={{-10,-10},{10,10}},
|
|---|
| 53 | rotation=90,
|
|---|
| 54 | origin={-80,60})));
|
|---|
| 55 |
|
|---|
| 56 | Modelica.Electrical.PowerConverters.ACDC.DiodeBridge2mPulse rectifier
|
|---|
| 57 | annotation (Placement(transformation(extent={{-68,60},{-48,80}})));
|
|---|
| 58 | Modelica.Electrical.Analog.Basic.Capacitor capacitor(v(fixed=true, start=VDC),
|
|---|
| 59 | C=CDC) annotation (Placement(transformation(
|
|---|
| 60 | extent={{-10,-10},{10,10}},
|
|---|
| 61 | rotation=270,
|
|---|
| 62 | origin={-30,70})));
|
|---|
| 63 | Modelica.Electrical.PowerConverters.DCAC.MultiPhase2Level inverter
|
|---|
| 64 | annotation (Placement(transformation(extent={{-10,-10},{10,10}}, origin={0,
|
|---|
| 65 | 70})));
|
|---|
| 66 | Modelica.Blocks.Sources.Ramp ramp(height=fNominal,
|
|---|
| 67 | startTime=0,
|
|---|
| 68 | duration=1.2)
|
|---|
| 69 | annotation (
|
|---|
| 70 | Placement(transformation(extent={{-10,-10},{10,10}},
|
|---|
| 71 | origin={-20,-50})));
|
|---|
| 72 | Modelica.Electrical.Machines.Utilities.VfController vfController(
|
|---|
| 73 | final m=m,
|
|---|
| 74 | VNominal=VNominal,
|
|---|
| 75 | fNominal=fNominal,
|
|---|
| 76 | EconomyMode=true) annotation (Placement(transformation(
|
|---|
| 77 | extent={{-10,-10},{10,10}},
|
|---|
| 78 | rotation=90,
|
|---|
| 79 | origin={0,-20})));
|
|---|
| 80 |
|
|---|
| 81 | Modelica.Electrical.Machines.SpacePhasors.Blocks.ToSpacePhasor toSpacePhasor
|
|---|
| 82 | annotation (Placement(transformation(
|
|---|
| 83 | extent={{-10,-10},{10,10}},
|
|---|
| 84 | rotation=90,
|
|---|
| 85 | origin={0,10})));
|
|---|
| 86 | Modelica.Electrical.PowerConverters.DCAC.Control.PWM pwm(uMax=VDC, f=2000)
|
|---|
| 87 | annotation (Placement(transformation(
|
|---|
| 88 | extent={{-10,-10},{10,10}},
|
|---|
| 89 | rotation=90,
|
|---|
| 90 | origin={0,40})));
|
|---|
| 91 | Modelica.Electrical.MultiPhase.Basic.Resistor resistor1(
|
|---|
| 92 | final m=m,
|
|---|
| 93 | final R=fill(RLoad, m),
|
|---|
| 94 | final T_ref=fill(20, m),
|
|---|
| 95 | final alpha=zeros(m),
|
|---|
| 96 | final T=fill(20, m)) annotation (Placement(transformation(
|
|---|
| 97 | extent={{10,-10},{-10,10}},
|
|---|
| 98 | rotation=180,
|
|---|
| 99 | origin={44,70})));
|
|---|
| 100 | Modelica.Electrical.MultiPhase.Basic.Delta delta
|
|---|
| 101 | annotation (Placement(transformation(extent={{34,36},{54,56}})));
|
|---|
| 102 | equation
|
|---|
| 103 | connect(vfController.u, ramp.y)
|
|---|
| 104 | annotation (Line(points={{0,-32},{0,-50},{-9,-50}},
|
|---|
| 105 | color={0,0,127}));
|
|---|
| 106 | connect(toSpacePhasor.u, vfController.y)
|
|---|
| 107 | annotation (Line(points={{0,-2},{0,-9}}, color={0,0,127}));
|
|---|
| 108 | connect(pwm.u, toSpacePhasor.y)
|
|---|
| 109 | annotation (Line(points={{0,28},{0,21}}, color={0,0,127}));
|
|---|
| 110 | connect(inverter.fire_p, pwm.fire_p)
|
|---|
| 111 | annotation (Line(points={{-6,58},{-6,51}}, color={255,0,255}));
|
|---|
| 112 | connect(inverter.fire_n, pwm.fire_n)
|
|---|
| 113 | annotation (Line(points={{6,58},{6,51}}, color={255,0,255}));
|
|---|
| 114 | connect(capacitor.p, inverter.dc_p) annotation (Line(points={{-30,80},{-20,80},
|
|---|
| 115 | {-20,76},{-10,76}}, color={0,0,255}));
|
|---|
| 116 | connect(capacitor.n, inverter.dc_n) annotation (Line(points={{-30,60},{-20,60},
|
|---|
| 117 | {-20,64},{-10,64}}, color={0,0,255}));
|
|---|
| 118 | connect(rectifier.dc_p, capacitor.p) annotation (Line(points={{-48,76},{-40,76},
|
|---|
| 119 | {-40,80},{-30,80}}, color={0,0,255}));
|
|---|
| 120 | connect(rectifier.dc_n, capacitor.n) annotation (Line(points={{-48,64},{-40,64},
|
|---|
| 121 | {-40,60},{-30,60}}, color={0,0,255}));
|
|---|
| 122 | connect(sineVoltage.plug_n, star.plug_p)
|
|---|
| 123 | annotation (Line(points={{-80,-40},{-80,-50}}, color={0,0,255}));
|
|---|
| 124 | connect(star.pin_n, ground.p)
|
|---|
| 125 | annotation (Line(points={{-80,-70},{-80,-80}}, color={0,0,255}));
|
|---|
| 126 | connect(resistor.plug_n, inductor.plug_p)
|
|---|
| 127 | annotation (Line(points={{-80,40},{-80,50}}, color={0,0,255}));
|
|---|
| 128 | connect(inductor.plug_n, rectifier.ac)
|
|---|
| 129 | annotation (Line(points={{-80,70},{-68,70}}, color={0,0,255}));
|
|---|
| 130 | connect(resistor.plug_p, gridCurrent.plug_p)
|
|---|
| 131 | annotation (Line(points={{-80,20},{-80,10}}, color={0,0,255}));
|
|---|
| 132 | connect(gridCurrent.plug_n, sineVoltage.plug_p)
|
|---|
| 133 | annotation (Line(points={{-80,-10},{-80,-20}}, color={0,0,255}));
|
|---|
| 134 | connect(inverter.ac, resistor1.plug_p)
|
|---|
| 135 | annotation (Line(points={{10,70},{34,70}}, color={0,0,255}));
|
|---|
| 136 | connect(resistor1.plug_p, delta.plug_p)
|
|---|
| 137 | annotation (Line(points={{34,70},{34,46}}, color={0,0,255}));
|
|---|
| 138 | connect(delta.plug_n, resistor1.plug_n)
|
|---|
| 139 | annotation (Line(points={{54,46},{54,70}}, color={0,0,255}));
|
|---|
| 140 | annotation (experiment(
|
|---|
| 141 | StopTime=0.1,
|
|---|
| 142 | Interval=5e-05,
|
|---|
| 143 | Tolerance=1e-06), Documentation(
|
|---|
| 144 | info="<html>
|
|---|
| 145 | <p>
|
|---|
| 146 | This is a model of a complete inverter drive comprising:
|
|---|
| 147 | </p>
|
|---|
| 148 | <ul>
|
|---|
| 149 | <li>a grid model and a line choke</li>
|
|---|
| 150 | <li><a href=\"modelica://Modelica.Electrical.PowerConverters.ACDC.DiodeBridge2mPulse\">a diode rectifier</a></li>
|
|---|
| 151 | <li>a buffer capacitor</li>
|
|---|
| 152 | <li><a href=\"modelica://Modelica.Electrical.PowerConverters.DCAC.MultiPhase2Level\">a switching inverter</a></li>
|
|---|
| 153 | <li><a href=\"modelica://Modelica.Electrical.PowerConverters.DCAC.Control.PWM\">a pulse width modulation</a></li>
|
|---|
| 154 | <li><a href=\"modelica://Modelica.Electrical.Machines.Utilities.VfController\">a voltage/frequency characteristic</a></li>
|
|---|
| 155 | <li>the reference frequency ramped up</li>
|
|---|
| 156 | <li>an induction machine with squirrel cage</li>
|
|---|
| 157 | <li>a load inertia and quadratic speed dependent load torque (like a fan or pump)</li>
|
|---|
| 158 | </ul>
|
|---|
| 159 | <p>Please note: Be patient, two switching devices cause many event iteratons which cost performance.</p>
|
|---|
| 160 | <p>Note that due to the voltage drop the voltage at the machine can't reach the full voltage which means torque reduction.</p>
|
|---|
| 161 | <p>Default machine parameters are adapted to nominal phase voltage 400 V and nominal phase current 25 A.</p>
|
|---|
| 162 | </html>"),
|
|---|
| 163 | uses(Modelica(version="3.2.3")));
|
|---|
| 164 | end TestIndexReduction4;
|
|---|
