Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors

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Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors

Package with sensor models for three-phase unbalanced AC systems

Information

This package contains models that represent different types of three phases unbalanced AC/AC sensors.

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

Package Content

Name	Description
Examples	Package with example models
GeneralizedSensor	Sensor for power, voltage and current (3 wire system, no neutral cable)
GeneralizedSensor_N	Sensor for power, voltage and current (4 wire system, with neutral cable)
ProbeDelta	Model of a probe that measures voltage magnitude and angle (Delta configuration)
ProbeWye	Model of a probe that measures voltage magnitude and angle (Wye configuration)
ProbeWye_N	Model of a probe that measures voltage magnitude and angle (Wye configuration) witn neutral cable connection
BaseClasses	Package that contains base classes

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.GeneralizedSensor

Sensor for power, voltage and current (3 wire system, no neutral cable)

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.GeneralizedSensor

Information

Ideal sensor that measures power, voltage and current in a three-phase unbalanced system without a neutral cable. The two components of the power S are the active and reactive power for each phase.

Connectors

Type	Name	Description
Terminal_n	terminal_n	Electrical connector side N
Terminal_p	terminal_p	Electrical connector side P
output RealOutput	V[3]	Voltage [V]
output RealOutput	I[3]	Current [A]
output RealOutput	S[3, terminal_n.phase[1].PhaseSystem.n]	Phase powers [W]

Modelica definition

model GeneralizedSensor "Sensor for power, voltage and current (3 wire system, no neutral cable)" Interfaces.Terminal_n terminal_n "Electrical connector side N"; Interfaces.Terminal_p terminal_p "Electrical connector side P"; Modelica.Blocks.Interfaces.RealOutput V[3](each final quantity="ElectricPotential", each final unit="V") "Voltage"; Modelica.Blocks.Interfaces.RealOutput I[3](each final quantity="ElectricCurrent", each final unit="A") "Current"; Modelica.Blocks.Interfaces.RealOutput S[3,terminal_n.phase[1].PhaseSystem.n]( each final quantity="Power", each final unit="W") "Phase powers"; equation for i in 1:3 loop V[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(terminal_n.phase[i].v); I[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemCurrent(terminal_n.phase[i].i); S[i,:] = Buildings.Electrical.PhaseSystems.OnePhase.phasePowers_vi(v=terminal_n.phase[i].v, i=terminal_n.phase[i].i); end for; connect(terminal_n, terminal_p); end GeneralizedSensor;

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.GeneralizedSensor_N

Sensor for power, voltage and current (4 wire system, with neutral cable)

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.GeneralizedSensor_N

Information

Ideal sensor that measures power, voltage and current in a three-phase unbalanced system with neutral cable. The two components of the power S are the active and reactive power for each phase.

Connectors

Type	Name	Description
Terminal4_n	terminal_n	Electrical connector side N
Terminal4_p	terminal_p	Electrical connector side P
output RealOutput	V[4]	Voltage [V]
output RealOutput	I[4]	Current [A]
output RealOutput	S[4, terminal_n.phase[1].PhaseSystem.n]	Phase powers [W]

Modelica definition

model GeneralizedSensor_N "Sensor for power, voltage and current (4 wire system, with neutral cable)" Interfaces.Terminal4_n terminal_n "Electrical connector side N"; Interfaces.Terminal4_p terminal_p "Electrical connector side P"; Modelica.Blocks.Interfaces.RealOutput V[4](each final quantity="ElectricPotential", each final unit="V") "Voltage"; Modelica.Blocks.Interfaces.RealOutput I[4](each final quantity="ElectricCurrent", each final unit="A") "Current"; Modelica.Blocks.Interfaces.RealOutput S[4,terminal_n.phase[1].PhaseSystem.n]( each final quantity="Power", each final unit="W") "Phase powers"; equation for i in 1:4 loop V[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(terminal_n.phase[i].v); I[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemCurrent(terminal_n.phase[i].i); S[i,:] = Buildings.Electrical.PhaseSystems.OnePhase.phasePowers_vi(v=terminal_n.phase[i].v, i=terminal_n.phase[i].i); end for; connect(terminal_n, terminal_p); end GeneralizedSensor_N;

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.ProbeDelta

Model of a probe that measures voltage magnitude and angle (Delta configuration)

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.ProbeDelta

Information

This model represents a probe that measures the RMS voltage and the angle of the voltage phasors at a given point. The probes are connected in the Wye (Y) grounded configuration.

Extends from Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbe (Partial model of a generalized three-phase probe).

Parameters

Type	Name	Default	Description
Voltage	V_nominal		RMS Nominal voltage (V_nominal >= 0) [V]
Boolean	perUnit	true	This flag display voltage in p.u.

Connectors

Type	Name	Description
output RealOutput	V[3]	Voltage in per unit [1]
output RealOutput	theta[3]	Angle [rad]
Terminal_n	term	Electrical connector

Modelica definition

model ProbeDelta "Model of a probe that measures voltage magnitude and angle (Delta configuration)" extends Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbe; Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.Terminal_n term "Electrical connector"; Interfaces.WyeToDelta wyeToDelta "Y to D transformation"; equation for i in 1:3 loop theta[i] = Buildings.Electrical.PhaseSystems.OnePhase.phase(wyeToDelta.delta.phase[i].v); if perUnit then V[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(wyeToDelta.delta.phase[i].v)/V_nominal; else V[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(wyeToDelta.delta.phase[i].v); end if; end for; connect(term, wyeToDelta.wye); end ProbeDelta;

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.ProbeWye

Model of a probe that measures voltage magnitude and angle (Wye configuration)

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.ProbeWye

Information

This model represents a probe that measures the RMS voltage and the angle of the voltage phasors at a given point. The probes are connected in the Wye (Y) grounded configuration.

Extends from Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbe (Partial model of a generalized three-phase probe).

Parameters

Type	Name	Default	Description
Voltage	V_nominal		RMS Nominal voltage (V_nominal >= 0) [V]
Boolean	perUnit	true	This flag display voltage in p.u.

Connectors

Type	Name	Description
output RealOutput	V[3]	Voltage in per unit [1]
output RealOutput	theta[3]	Angle [rad]
Terminal_n	term	Electrical connector

Modelica definition

model ProbeWye "Model of a probe that measures voltage magnitude and angle (Wye configuration)" extends Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbe; Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.Terminal_n term "Electrical connector"; Interfaces.WyeToWyeGround wyeToWyeGround "Y to Y grounded transformation"; equation for i in 1:3 loop theta[i] = Buildings.Electrical.PhaseSystems.OnePhase.phase(wyeToWyeGround.wyeg.phase[i].v); if perUnit then V[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(wyeToWyeGround.wyeg.phase[i].v)/(V_nominal/sqrt(3)); else V[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(wyeToWyeGround.wyeg.phase[i].v); end if; end for; connect(term, wyeToWyeGround.wye); end ProbeWye;

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.ProbeWye_N

Model of a probe that measures voltage magnitude and angle (Wye configuration) witn neutral cable connection

Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.ProbeWye_N

Information

This model represents a probe that measures the RMS voltage and the angle of the voltage phasors at a given point. The probes are connected in the Wye (Y) grounded configuration.

Extends from Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbe (Partial model of a generalized three-phase probe).

Parameters

Type	Name	Default	Description
Voltage	V_nominal		RMS Nominal voltage (V_nominal >= 0) [V]
Boolean	perUnit	true	This flag display voltage in p.u.

Connectors

Type	Name	Description
output RealOutput	V[3]	Voltage in per unit [1]
output RealOutput	theta[3]	Angle [rad]
Terminal4_n	term	Electrical connector

Modelica definition

model ProbeWye_N "Model of a probe that measures voltage magnitude and angle (Wye configuration) witn neutral cable connection" extends Buildings.Electrical.AC.ThreePhasesUnbalanced.Sensors.BaseClasses.GeneralizedProbe; Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.Terminal4_n term "Electrical connector"; equation for i in 1:4 loop term.phase[i].i = zeros(Buildings.Electrical.PhaseSystems.OnePhase.n); end for; for i in 1:3 loop theta[i] = Buildings.Electrical.PhaseSystems.OnePhase.phase(term.phase[i].v - term.phase[4].v); if perUnit then V[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(term.phase[i].v - term.phase[4].v)/(V_nominal/sqrt(3)); else V[i] = Buildings.Electrical.PhaseSystems.OnePhase.systemVoltage(term.phase[i].v - term.phase[4].v); end if; end for; end ProbeWye_N;

Automatically generated Mon Jul 13 14:23:14 2015.