model MultiStarResistance "Resistance connection of star points"
parameter Integer m(final min = 3) = 3 "Number of phases";
final parameter Integer mBasic = Modelica.Electrical.MultiPhase.Functions.numberOfSymmetricBaseSystems(m) "Number of symmetric base systems";
parameter Modelica.SIunits.Resistance R = 1000000 "Insulation resistance between base systems";
Modelica.Electrical.MultiPhase.Interfaces.PositivePlug plug(m = m) annotation (Placement(transformation(extent = {
{-110, -10},
{-90, 10}})));
Modelica.Electrical.MultiPhase.Basic.MultiStar multiStar(m = m) annotation (Placement(transformation(
extent = {
{-10, -10},
{10, 10}},
origin = {-50, 0})));
Modelica.Electrical.MultiPhase.Basic.Resistor resistor(m = mBasic, R = fill(R, mBasic)) annotation (Placement(transformation(extent = {
{-10, -10},
{10, 10}})));
Modelica.Electrical.MultiPhase.Basic.Star star(m = mBasic) annotation (Placement(transformation(
extent = {
{-10, -10},
{10, 10}},
origin = {50, 0})));
Modelica.Electrical.Analog.Interfaces.NegativePin pin annotation (Placement(transformation(
extent = {
{-10, -10},
{10, 10}},
rotation = 180,
origin = {100, 0})));
equation
connect(plug,multiStar.plug_p) annotation (Line(
points = {
{-100, 0},
{-100, 0},
{-60, 0},
{-60, 0}},
color = {0, 0, 255}));
connect(multiStar.starpoints,resistor.plug_p) annotation (Line(
points = {
{-40, 0},
{-40, 0},
{-10, 0}},
color = {0, 0, 255}));
connect(resistor.plug_n,star.plug_p) annotation (Line(
points = {
{10, 0},
{10, 0},
{34, 0},
{34, 0},
{40, 0},
{40, 0}},
color = {0, 0, 255}));
connect(star.pin_n,pin) annotation (Line(
points = {
{60, 0},
{60, 0},
{98, 0},
{98, 0},
{100, 0},
{100, 0}},
color = {0, 0, 255}));
annotation (
defaultComponentName = "multiStar",
Icon(
coordinateSystem(
preserveAspectRatio = false,
extent = {
{-100, -100},
{100, 100}}),
graphics = {
Line(
points = {
{-40, 40},
{0, 0},
{40, 40},
{0, 0},
{0, -40}},
color = {0, 0, 255},
origin = {-60, 0},
rotation = 90),
Rectangle(
extent = {
{-10, 20},
{10, -20}},
lineColor = {0, 0, 255},
rotation = 90),
Line(
points = {
{-40, 40},
{0, 0},
{40, 40},
{0, 0},
{0, -40}},
color = {0, 0, 255},
origin = {60, 0},
rotation = 90),
Text(
extent = {
{-150, -90},
{150, -50}},
textString = "R=%R"),
Text(
extent = {
{-150, 60},
{150, 100}},
textString = "%name",
lineColor = {0, 0, 255})}),
Documentation(info = "<html>\n<p>\nMulti star points are connected by resistors. This model is required to operate multi phase systems with even phase numbers to avoid ideal connections of start points of base systems; see\n<a href=\"modelica://Modelica.Magnetic.FundamentalWave.UsersGuide.MultiPhase\">multi phase guidelines</a>.\n</p>\n</html>"));
end MultiStarResistance;