Modelica.Electrical.MultiPhase.Sensors

Information

This package contains multiphase potential, voltage, and current sensors.

Extends from Modelica.Icons.Library2 (Icon for library where additional icon elements shall be added).

Package Content

Name	Description
PotentialSensor	Multiphase potential sensor
VoltageSensor	Multiphase voltage sensor
CurrentSensor	Multiphase current sensor
PowerSensor	Multiphase instantaneous power sensor

Modelica.Electrical.MultiPhase.Sensors.PotentialSensor

Information

Contains m potential sensors (Modelica.Electrical.Analog.Sensors.PotentialSensor), thus measuring the m potentials phi[m] of the m pins of plug_p.

Extends from Modelica.Icons.RotationalSensor (Icon representing rotational measurement device).

Parameters

Type	Name	Default	Description
Integer	m	3	number of phases

Connectors

Type	Name	Description
PositivePlug	plug_p
output RealOutput	phi[m]	Absolute voltage potential as output signal

Modelica definition

model PotentialSensor "Multiphase potential sensor"
  extends Modelica.Icons.RotationalSensor;
  parameter Integer m(final min=1) = 3 "number of phases";
  Interfaces.PositivePlug plug_p(final m=m);
  Modelica.Blocks.Interfaces.RealOutput phi[m] 
    "Absolute voltage potential as output signal";
  Modelica.Electrical.Analog.Sensors.PotentialSensor potentialSensor[m];
equation 
  connect(potentialSensor.p, plug_p.pin);
  connect(potentialSensor.phi, phi);
end PotentialSensor;

Modelica.Electrical.MultiPhase.Sensors.VoltageSensor

Information

Contains m voltage sensors (Modelica.Electrical.Analog.Sensors.VoltageSensor), thus measuring the m potential differences v[m] between the m pins of plug_p and plug_n.

Extends from Modelica.Icons.RotationalSensor (Icon representing rotational measurement device).

Parameters

Type	Name	Default	Description
Integer	m	3	number of phases

Connectors

Type	Name	Description
PositivePlug	plug_p
NegativePlug	plug_n
output RealOutput	v[m]	Voltage between pin p and n (= p.v - n.v) as output signal

Modelica definition

model VoltageSensor "Multiphase voltage sensor"
  extends Modelica.Icons.RotationalSensor;
  parameter Integer m(final min=1) = 3 "number of phases";
  Interfaces.PositivePlug plug_p(final m=m);
  Interfaces.NegativePlug plug_n(final m=m);
  Modelica.Blocks.Interfaces.RealOutput v[m] 
    "Voltage between pin p and n (= p.v - n.v) as output signal";
  Modelica.Electrical.Analog.Sensors.VoltageSensor voltageSensor[m];
equation 
  connect(voltageSensor.n, plug_n.pin);
  connect(voltageSensor.p, plug_p.pin);
  connect(voltageSensor.v, v);
end VoltageSensor;

Modelica.Electrical.MultiPhase.Sensors.CurrentSensor

Information

Contains m current sensors (Modelica.Electrical.Analog.Sensors.CurrentSensor), thus measuring the m currents i[m] flowing from the m pins of plug_p to the m pins of plug_n.

Extends from Modelica.Icons.RotationalSensor (Icon representing rotational measurement device).

Parameters

Type	Name	Default	Description
Integer	m	3	number of phases

Connectors

Type	Name	Description
PositivePlug	plug_p
NegativePlug	plug_n
output RealOutput	i[m]	current in the branch from p to n as output signal

Modelica definition

model CurrentSensor "Multiphase current sensor"
  extends Modelica.Icons.RotationalSensor;
  parameter Integer m(final min=1) = 3 "number of phases";
  Interfaces.PositivePlug plug_p(final m=m);
  Interfaces.NegativePlug plug_n(final m=m);
  Modelica.Blocks.Interfaces.RealOutput i[m] 
    "current in the branch from p to n as output signal";
  Modelica.Electrical.Analog.Sensors.CurrentSensor currentSensor[m];
equation 
  connect(plug_p.pin, currentSensor.p);
  connect(currentSensor.n, plug_n.pin);
  connect(currentSensor.i, i);
end CurrentSensor;

Modelica.Electrical.MultiPhase.Sensors.PowerSensor

Information

This power sensor measures instantaneous electrical power of a multiphase system and has a separated voltage and current path. The plugs of the voltage path are pv and nv, the plugs of the current path are pc and nc. The internal resistance of each current path is zero, the internal resistance of each voltage path is infinite.

Parameters

Type	Name	Default	Description
Integer	m	3	number of phases

Connectors

Type	Name	Description
PositivePlug	pc	Positive plug, current path
NegativePlug	nc	Negative plug, current path
PositivePlug	pv	Positive plug, voltage path
NegativePlug	nv	Negative plug, voltage path
output RealOutput	power

Modelica definition

model PowerSensor "Multiphase instantaneous power sensor"
  parameter Integer m(min=1) = 3 "number of phases";
  MultiPhase.Interfaces.PositivePlug pc(final m=m) 
    "Positive plug, current path";
  MultiPhase.Interfaces.NegativePlug nc(final m=m) 
    "Negative plug, current path";
  MultiPhase.Interfaces.PositivePlug pv(final m=m) 
    "Positive plug, voltage path";
  MultiPhase.Interfaces.NegativePlug nv(final m=m) 
    "Negative plug, voltage path";
  Modelica.Blocks.Interfaces.RealOutput power;
  MultiPhase.Sensors.VoltageSensor voltageSensor(final m=m);
  MultiPhase.Sensors.CurrentSensor currentSensor(final m=m);
  Modelica.Blocks.Math.Product product[m];
  Modelica.Blocks.Math.Sum sum(final nin=m, final k=ones(m));
equation 
  connect(pc, currentSensor.plug_p);
  connect(currentSensor.plug_n, nc);
  connect(voltageSensor.plug_p, pv);
  connect(voltageSensor.plug_n, nv);
  connect(currentSensor.i, product.u2);
  connect(product.u1, voltageSensor.v);
  connect(product.y, sum.u);
  connect(sum.y, power);
end PowerSensor;