model TerminalBox "Terminal box Y/D-connection"
parameter Integer m = 3 "Number of phases"
annotation (Evaluate = true);
parameter String terminalConnection(start = "Y") "Choose \"Y\" for star or \"D\" for delta connection"
annotation (choices(
choice = "Y" "Star connection",
choice = "D" "Delta connection"));
Modelica.Electrical.Polyphase.Interfaces.PositivePlug plug_sp(final m = m) "To be connected with positive stator plug"
annotation (Placement(
transformation(extent = {
{50, -50},
{70, -70}}),
iconTransformation(extent = {
{50, -50},
{70, -70}})));
Modelica.Electrical.Polyphase.Interfaces.NegativePlug plug_sn(final m = m) "To be connected with negative stator plug"
annotation (Placement(
transformation(extent = {
{-70, -50},
{-50, -70}}),
iconTransformation(extent = {
{-70, -50},
{-50, -70}})));
Modelica.Electrical.Polyphase.Basic.Star star(final m = m) if terminalConnection <> "D" annotation (Placement(transformation(
origin = {-70, -80},
extent = {
{-10, 10},
{10, -10}},
rotation = 180)));
Modelica.Electrical.Polyphase.Basic.Delta delta(final m = m) if terminalConnection == "D" annotation (Placement(transformation(extent = {
{-20, -70},
{-40, -50}})));
Modelica.Electrical.Polyphase.Interfaces.PositivePlug plugSupply(final m = m) "To be connected with grid"
annotation (Placement(
transformation(extent = {
{-10, -30},
{10, -50}}),
iconTransformation(extent = {
{-10, -30},
{10, -50}})));
Modelica.Electrical.Analog.Interfaces.NegativePin starpoint if terminalConnection <> "D" "Star point"
annotation (Placement(
transformation(extent = {
{-110, -50},
{-90, -30}}),
iconTransformation(extent = {
{-110, -50},
{-90, -30}})));
equation
connect(plug_sn,delta.plug_n) annotation (Line(
points = {
{-60, -60},
{-40, -60},
{-40, -60}},
color = {0, 0, 255}));
connect(plug_sn,star.plug_p) annotation (Line(
points = {
{-60, -60},
{-60, -80}},
color = {0, 0, 255}));
connect(plug_sp,plugSupply) annotation (Line(
points = {
{60, -60},
{0, -60},
{0, -40}},
color = {0, 0, 255}));
connect(delta.plug_p,plug_sp) annotation (Line(
points = {
{-20, -60},
{60, -60},
{60, -60}},
color = {0, 0, 255}));
connect(star.pin_n,starpoint) annotation (Line(
points = {
{-80, -80},
{-86, -80},
{-86, -40},
{-100, -40}},
color = {0, 0, 255}));
annotation (
Icon(
coordinateSystem(
preserveAspectRatio = true,
extent = {
{-100, -100},
{100, 100}}),
graphics = {
Polygon(
points = {
{-76, -40},
{-80, -44},
{-80, -80},
{-40, -100},
{40, -100},
{80, -70},
{80, -44},
{76, -40},
{-76, -40}},
lineColor = {95, 95, 95},
fillColor = {135, 135, 135},
fillPattern = FillPattern.Solid),
Text(
extent = {
{-40, -50},
{40, -90}},
textString = "%terminalConnection")}),
Documentation(info = "<html>\n<p>\nThis model represents the internal connections of the terminal box of an electric machine.\nThe parameter <code>terminalConnection</code> is used to switch between star\n(<code>terminalConnection = \"Y\"</code>) and delta (<code>terminalConnection = \"D\"</code>) connection.\nThe (single-phase) connector <code>starPoint</code> is only available if star connection is selected.\n</p>\n</html>"));
end TerminalBox;