Package Modelica.​Magnetic.​FluxTubes.​Sources
Sources of different complexity of magnetomotive force and magnetic flux

Information

This package contains sources of a magnetic potential difference or a magnetic flux:

Extends from Modelica.​Icons.​SourcesPackage (Icon for packages containing sources).

Package Contents

NameDescription
ConstantMagneticFluxSource of constant magnetic flux
ConstantMagneticPotentialDifferenceConstant magnetomotive force
SignalMagneticFluxSignal-controlled magnetic flux source
SignalMagneticPotentialDifferenceSignal-controlled magnetomotive force

Model Modelica.​Magnetic.​FluxTubes.​Sources.​ConstantMagneticPotentialDifference
Constant magnetomotive force

Information

Magnetic circuits under steady-state conditions, i.e., with stationary magnetic fields (change of magnetic flux dΦ/dt = 0) can be described with constant sources of a magnetic potential difference or magnetomotive force (mmf). Constant magnetic potential differences are imposed by

For modelling of reluctance actuators with this source component it is assumed that the armature is fixed so that no motion-induced flux change dΦ/dt can occur.

Extends from Modelica.​Magnetic.​FluxTubes.​Interfaces.​PartialTwoPortsElementary (Partial component with two magnetic ports p and n for textual programming).

Parameters

TypeNameDefaultDescription
MagneticPotentialDifferenceV_m Magnetic potential difference

Connectors

TypeNameDescription
PositiveMagneticPortport_pPositive magnetic port
NegativeMagneticPortport_nNegative magnetic port

Model Modelica.​Magnetic.​FluxTubes.​Sources.​SignalMagneticPotentialDifference
Signal-controlled magnetomotive force

Information

In electromagnetic devices, a change of a coil's magnetic flux linkage Ψ reacts on the electrical subsystem in that a voltage v is induced due to Faraday's law:

    v = - dΨ/dt

This reaction can possibly be neglected for

In these cases, the magnetic potential difference or magnetomotive force imposed by a coil can easily be modelled with a signal-controlled source. Except for the neglected dynamics, steady-state actuator forces will be calculated properly in actuator models based on these sources.

Extends from Modelica.​Magnetic.​FluxTubes.​Interfaces.​PartialTwoPortsElementary (Partial component with two magnetic ports p and n for textual programming).

Connectors

TypeNameDescription
PositiveMagneticPortport_pPositive magnetic port
NegativeMagneticPortport_nNegative magnetic port
input RealInputV_mMagnetic potential difference

Model Modelica.​Magnetic.​FluxTubes.​Sources.​ConstantMagneticFlux
Source of constant magnetic flux

Information

Sources of a constant magnetic flux are useful for modelling of permanent magnets with Norton's magnetic equivalent circuit.

Extends from Modelica.​Magnetic.​FluxTubes.​Interfaces.​PartialTwoPortsElementary (Partial component with two magnetic ports p and n for textual programming).

Parameters

TypeNameDefaultDescription
MagneticFluxPhi1Magnetic flux

Connectors

TypeNameDescription
PositiveMagneticPortport_pPositive magnetic port
NegativeMagneticPortport_nNegative magnetic port

Model Modelica.​Magnetic.​FluxTubes.​Sources.​SignalMagneticFlux
Signal-controlled magnetic flux source

Information

This source of a magnetic flux is intended for test purposes, e.g., for simulation and subsequent plotting of a softmagnetic material's magnetisation characteristics if used together with a non-linear reluctance element.

Extends from Modelica.​Magnetic.​FluxTubes.​Interfaces.​PartialTwoPortsElementary (Partial component with two magnetic ports p and n for textual programming).

Connectors

TypeNameDescription
PositiveMagneticPortport_pPositive magnetic port
NegativeMagneticPortport_nNegative magnetic port
input RealInputPhiMagnetic flux

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