Buildings.Electrical.AC.OnePhase.Sensors

Package with sensors for AC electrical systems

Information

This package contains models for voltage, current and power sensors.

Extends from Modelica.Icons.SensorsPackage (Icon for packages containing sensors).

Package Content

Name	Description
GeneralizedSensor	Sensor for power, voltage and current
Probe	Model of a probe that measures RMS voltage and angle
Examples	Package with example models

Buildings.Electrical.AC.OnePhase.Sensors.GeneralizedSensor

Sensor for power, voltage and current

Buildings.Electrical.AC.OnePhase.Sensors.GeneralizedSensor

Information

Ideal sensor that measures power, voltage and current. The two components of the power S are the active and reactive power.

Extends from Buildings.Electrical.Icons.GeneralizedSensor (Icon representing a generalized sensor that measures voltage, current and power), Buildings.Electrical.Interfaces.PartialTwoPort (Model of a generic two port component with phase systems).

Parameters

Type	Name	Default	Description
replaceable package PhaseSystem_p		PartialPhaseSystem	Phase system of terminal p
replaceable package PhaseSystem_n		PartialPhaseSystem	Phase system of terminal n

Connectors

Type	Name	Description
replaceable package PhaseSystem_p		Phase system of terminal p
replaceable package PhaseSystem_n		Phase system of terminal n
output RealOutput	V	Voltage [V]
output RealOutput	I	Current [A]
output RealOutput	S[PhaseSystems.OnePhase.n]	Phase powers [W]

Modelica definition

model GeneralizedSensor "Sensor for power, voltage and current" extends Buildings.Electrical.Icons.GeneralizedSensor; extends Buildings.Electrical.Interfaces.PartialTwoPort( redeclare package PhaseSystem_p = PhaseSystems.OnePhase, redeclare package PhaseSystem_n = PhaseSystems.OnePhase, redeclare Interfaces.Terminal_n terminal_n, redeclare Interfaces.Terminal_p terminal_p); Modelica.Blocks.Interfaces.RealOutput V(final quantity="ElectricPotential", final unit="V")= Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(terminal_n.v) "Voltage"; Modelica.Blocks.Interfaces.RealOutput I(final quantity="ElectricCurrent", final unit="A")= Buildings.Electrical.PhaseSystems.OnePhase.systemCurrent(terminal_n.i) "Current"; Modelica.Blocks.Interfaces.RealOutput S[PhaseSystems.OnePhase.n]( each final quantity="Power", each final unit="W")= Buildings.Electrical.PhaseSystems.OnePhase.phasePowers_vi(v=terminal_n.v, i=terminal_n.i) "Phase powers"; equation connect(terminal_n, terminal_p); end GeneralizedSensor;

Buildings.Electrical.AC.OnePhase.Sensors.Probe

Model of a probe that measures RMS voltage and angle

Buildings.Electrical.AC.OnePhase.Sensors.Probe

Information

This model represents a probe that measures the RMS voltage and the angle of the voltage phasor at a given point.

Optionally, given a reference voltage, the model can compute the voltage in per unit.

Extends from Icons.GeneralizedProbe (Icon representing a generalized probe that measures voltage, and phase angle).

Parameters

Type	Name	Default	Description
Voltage	V_nominal		Nominal voltage (V_nominal >= 0) [V]
Boolean	perUnit	true	If true, display voltage in p.u.
Terminal_n	term	redeclare Interfaces.Termina...	Electrical connector

Connectors

Type	Name	Description
Terminal_n	term	Electrical connector
output RealOutput	V	Voltage phasor magnitude [1V]
output RealOutput	theta	Voltage phasor angle [rad]

Modelica definition

model Probe "Model of a probe that measures RMS voltage and angle" extends Icons.GeneralizedProbe; parameter Modelica.SIunits.Voltage V_nominal(min=0, start = 110) "Nominal voltage (V_nominal >= 0)"; parameter Boolean perUnit = true "If true, display voltage in p.u."; replaceable Interfaces.Terminal_n term "Electrical connector"; Modelica.Blocks.Interfaces.RealOutput V(unit=if perUnit then "1" else "V") "Voltage phasor magnitude"; Modelica.Blocks.Interfaces.RealOutput theta(unit="rad", displayUnit="deg") "Voltage phasor angle"; equation theta = Buildings.Electrical.PhaseSystems.OnePhase.phase(term.v); if perUnit then V = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(term.v)/V_nominal; else V = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(term.v); end if; term.i = zeros(Buildings.Electrical.PhaseSystems.OnePhase.n); end Probe;