model ReactivePowerSensor "threephase sensor for reactive power"
import Modelica;
extends Modelica.Icons.RotationalSensor;
final parameter Integer m(final min = 1) = 3 "Number of phases";
Interfaces.PositivePlug plug_p(final m = m) annotation (Placement(transformation(extent = {
{-110, -10},
{-90, 10}})));
Interfaces.NegativePlug plug_n(final m = m) annotation (Placement(transformation(extent = {
{90, -10},
{110, 10}})));
Modelica.Blocks.Interfaces.RealOutput reactivePower "reactive power"
annotation (Placement(transformation(
origin = {0, -110},
extent = {
{10, -10},
{-10, 10}},
rotation = 90)));
Basic.PlugToPins_p plugToPins_p(final m = m) annotation (Placement(transformation(extent = {
{-80, -10},
{-60, 10}})));
Basic.PlugToPins_n plugToPins_n(final m = m) annotation (Placement(transformation(extent = {
{80, -10},
{60, 10}})));
Analog.Sensors.PowerSensor powerSensor1 annotation (Placement(transformation(extent = {
{-40, 20},
{-20, 40}})));
Analog.Sensors.PowerSensor powerSensor2 annotation (Placement(transformation(extent = {
{10, 10},
{30, -10}})));
Modelica.Blocks.Math.Add3 add(final k1 = sqrt(3) ^ (-1), final k2 = sqrt(3) ^ (-1), final k3 = sqrt(3) ^ (-1)) annotation (Placement(transformation(
extent = {
{-10, 10},
{10, -10}},
rotation = 270,
origin = {0, -80})));
Analog.Sensors.PowerSensor powerSensor3 annotation (Placement(transformation(extent = {
{30, -40},
{50, -20}})));
equation
connect(plug_p,plugToPins_p.plug_p) annotation (Line(
points = {
{-100, 0},
{-72, 0}},
color = {0, 0, 255}));
connect(add.y,reactivePower) annotation (Line(
points = {
{0, -91},
{0, -110}},
color = {0, 0, 127}));
connect(plugToPins_n.plug_n,plug_n) annotation (Line(
points = {
{72, 0},
{100, 0}},
color = {0, 0, 255}));
connect(plugToPins_p.pin_p[1],powerSensor1.pc) annotation (Line(
points = {
{-68, 0},
{-68, 30},
{-40, 30}},
color = {0, 0, 255}));
connect(plugToPins_p.pin_p[2],powerSensor2.pc) annotation (Line(
points = {
{-68, 0},
{10, 0}},
color = {0, 0, 255}));
connect(plugToPins_p.pin_p[3],powerSensor1.nv) annotation (Line(
points = {
{-68, 0},
{-68, -30},
{-30, -30},
{-30, 20}},
color = {0, 0, 255}));
connect(plugToPins_p.pin_p[3],powerSensor2.pv) annotation (Line(
points = {
{-68, 0},
{-68, -30},
{20, -30},
{20, -10}},
color = {0, 0, 255}));
connect(plugToPins_p.pin_p[3],powerSensor3.pc) annotation (Line(
points = {
{-68, 0},
{-68, -30},
{30, -30}},
color = {0, 0, 255}));
connect(powerSensor1.nc,plugToPins_n.pin_n[1]) annotation (Line(
points = {
{-20, 30},
{68, 30},
{68, 0}},
color = {0, 0, 255}));
connect(powerSensor1.nc,powerSensor2.nv) annotation (Line(
points = {
{-20, 30},
{20, 30},
{20, 10}},
color = {0, 0, 255}));
connect(powerSensor1.nc,powerSensor3.pv) annotation (Line(
points = {
{-20, 30},
{40, 30},
{40, -20}},
color = {0, 0, 255}));
connect(powerSensor1.power,add.u1) annotation (Line(
points = {
{-40, 19},
{-40, -60},
{-8, -60},
{-8, -68}},
color = {0, 0, 127}));
connect(powerSensor1.pv,plugToPins_p.pin_p[2]) annotation (Line(
points = {
{-30, 40},
{-50, 40},
{-50, 0},
{-68, 0}},
color = {0, 0, 255}));
connect(powerSensor2.nc,plugToPins_n.pin_n[2]) annotation (Line(
points = {
{30, 0},
{68, 0}},
color = {0, 0, 255}));
connect(powerSensor2.power,add.u2) annotation (Line(
points = {
{10, 11},
{10, 20},
{0, 20},
{0, -66},
{0, -66},
{0, -68}},
color = {0, 0, 127}));
connect(powerSensor3.nc,plugToPins_n.pin_n[3]) annotation (Line(
points = {
{50, -30},
{68, -30},
{68, 0}},
color = {0, 0, 255}));
connect(powerSensor3.nv,plugToPins_n.pin_n[2]) annotation (Line(
points = {
{40, -40},
{40, -50},
{60, -50},
{60, 0},
{68, 0}},
color = {0, 0, 255}));
connect(powerSensor3.power,add.u3) annotation (Line(
points = {
{30, -41},
{30, -60},
{8, -60},
{8, -68}},
color = {0, 0, 127}));
annotation (
Icon(
coordinateSystem(
preserveAspectRatio = false,
extent = {
{-100, -100},
{100, 100}}),
graphics = {
Text(
extent = {
{-29, -11},
{30, -70}},
textString = "var"),
Line(points = {
{-70, 0},
{-90, 0}}),
Line(points = {
{70, 0},
{90, 0}}),
Line(
points = {
{0, -100},
{0, -70}},
color = {0, 0, 127}),
Text(
extent = {
{150, -100},
{-150, -70}},
textString = "m=%m"),
Text(
extent = {
{-150, 80},
{150, 120}},
textString = "%name",
lineColor = {0, 0, 255})}),
Documentation(info = "<html>\n<p>\nContains 3 power meters (Modelica.Electrical.Analog.Sensors.PowerSensor) to measure total reactive power in a threephase system.\n</p>\n<p>\nThomas Mühl: Elektrische Messtechnik. Springer Vieweg.\n</p>\n</html>"));
end ReactivePowerSensor;