Modelica.Magnetic.FluxTubes.Interfaces

Interfaces of magnetic network components

Information

This package contains connectors for the magnetic domain and partial models for lumped magnetic network components.

Extends from Modelica.Icons.InterfacesPackage (Icon for packages containing interfaces).

Package Content

Name	Description
MagneticPort	Generic magnetic port
PositiveMagneticPort	Positive magnetic port
NegativeMagneticPort	Negative magnetic port
PartialTwoPortsElementary	Partial component with two magnetic ports p and n for textual programming
PartialTwoPorts	Partial component with magnetic potential difference of the two magnetic ports p and n and magnetic flux Phi from p to n
PartialFixedShape	Base class for flux tubes with fixed shape during simulation; linear or non-linear material characteristics
PartialForce	Base class for flux tubes with reluctance force generation; constant permeability
PartialLeakage	Base class for leakage flux tubes with position-independent permeance and hence no force generation; mu_r=1
PartialGeneric	Partial Tellinen hysteresis model
ConditionalHeatPort	Partial model to include a conditional HeatPort in order to describe the power loss via a thermal network
PartialGenericHysteresis	Partial hysteresis model
PartialGenericHysteresisTellinen	Partial Tellinen hysteresis model

Modelica.Magnetic.FluxTubes.Interfaces.MagneticPort

Generic magnetic port

Contents

Modelica.Magnetic.FluxTubes.Interfaces.PositiveMagneticPort

Positive magnetic port

Information

Extends from FluxTubes.Interfaces.MagneticPort (Generic magnetic port).

Contents

Modelica.Magnetic.FluxTubes.Interfaces.NegativeMagneticPort

Negative magnetic port

Information

Extends from FluxTubes.Interfaces.MagneticPort (Generic magnetic port).

Contents

Modelica.Magnetic.FluxTubes.Interfaces.PartialTwoPortsElementary

Partial component with two magnetic ports p and n for textual programming

Information

Partial model of a flux tube component with two magnetic ports: the positive port connector port_p, and the negative port connector port_n.

Connectors

Modelica.Magnetic.FluxTubes.Interfaces.PartialTwoPorts

Partial component with magnetic potential difference of the two magnetic ports p and n and magnetic flux Phi from p to n

Information

It is assumed that the magnetic flux flowing into port_p is identical to the flux flowing out of port_n. This magnetic flux is provided explicitly as flux Phi.

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

Connectors

Modelica.Magnetic.FluxTubes.Interfaces.PartialFixedShape

Base class for flux tubes with fixed shape during simulation; linear or non-linear material characteristics

Information

Please refer to the description of the sub-package Shapes.FixedShape for utilisation of this partial model.

Extends from FluxTubes.Interfaces.PartialTwoPorts (Partial component with magnetic potential difference of the two magnetic ports p and n and magnetic flux Phi from p to n).

Parameters

Connectors

Modelica.Magnetic.FluxTubes.Interfaces.PartialForce

Base class for flux tubes with reluctance force generation; constant permeability

Information

Please refer to the description of the sub-package Shapes.Force for utilisation of this partial model.

Extends from FluxTubes.Interfaces.PartialTwoPorts (Partial component with magnetic potential difference of the two magnetic ports p and n and magnetic flux Phi from p to n).

Parameters

Connectors

Modelica.Magnetic.FluxTubes.Interfaces.PartialLeakage

Base class for leakage flux tubes with position-independent permeance and hence no force generation; mu_r=1

Information

Please refer to the description of the sub-package Shapes.Leakage for utilisation of this partial model.

Extends from FluxTubes.Interfaces.PartialTwoPorts (Partial component with magnetic potential difference of the two magnetic ports p and n and magnetic flux Phi from p to n).

Parameters

Connectors

Modelica.Magnetic.FluxTubes.Interfaces.PartialGeneric

Partial Tellinen hysteresis model

Information

Extends from Interfaces.PartialTwoPorts (Partial component with magnetic potential difference of the two magnetic ports p and n and magnetic flux Phi from p to n).

Parameters

Name	Description
Initialization
Phi	Magnetic flux from port_p to port_n [Wb]
Fixed geometry
l	Length in direction of flux [m]
A	Area of cross section [m2]

Connectors

Modelica.Magnetic.FluxTubes.Interfaces.ConditionalHeatPort

Partial model to include a conditional HeatPort in order to describe the power loss via a thermal network

Information

This partial model provides a conditional heating port for the connection to a thermal network.

• If useHeatPort is set to false (default), no heat port is available, and the thermal loss power flows internally to the ground. In this case, the parameter T specifies the fixed device temperature (the default for T = 20^oC).
• If useHeatPort is set to true, a heat port is available.

If this model is used, the loss power has to be provided by an equation in the model which inherits from ConditionalHeatingPort model (lossPower = ...). As device temperature T_heatPort can be used to describe the influence of the device temperature on the model behaviour.

Parameters

Connectors

Modelica.Magnetic.FluxTubes.Interfaces.PartialGenericHysteresis

Partial hysteresis model

Information

Extends from Interfaces.PartialGeneric (Partial Tellinen hysteresis model), Interfaces.ConditionalHeatPort (Partial model to include a conditional HeatPort in order to describe the power loss via a thermal network).

Parameters

Name	Description
Initialization
Phi	Magnetic flux from port_p to port_n [Wb]
Fixed geometry
l	Length in direction of flux [m]
A	Area of cross section [m2]
Losses and Heat
HeatPort
useHeatPort	=true, if HeatPort is enabled
T	Fixed device temperature if useHeatPort = false [K]
Eddy Currents
includeEddyCurrents	=true, if eddy current losses are enabled
sigma	Conductivity of core material [S/m]
d	Thickness of lamination [m]

Connectors

Modelica.Magnetic.FluxTubes.Interfaces.PartialGenericHysteresisTellinen

Partial Tellinen hysteresis model

Information

A reluctance with the Tellinen hysteresis model. The major hysteresis loop is defined by the hyperbolic tangent function.

The Tellinen Hysteresis Model

The Tellinen hysteresis model is a simple model to describe the magnetic hysteresis behavior of ferromagnetic materials. It only uses the rising (hystR) and falling (hystF) branch of the major hysteresis loop and their derivatives der(hystR) and der(hystF). See Fig. 1 and the following equations for a short description of the Tellinen hysteresis model.

diffHyst = hystF - hystR;
dhR = hystF - b;
dhF = b - hystR;

if the magnetic field intensity increases (der(h)>0)

der(b) = dhR/diffHyst * der(hystR);

if the magnetic field intensity decreases (der(h)<0)

der(b) = dhF/diffHyst * der(hystF);

Extends from Interfaces.PartialGenericHysteresis (Partial hysteresis model).

Parameters

Name	Description
Initialization
Phi	Magnetic flux from port_p to port_n [Wb]
H	Magnetic field strength [A/m]
MagRel	Relative magnetization at initialization (-1..1) [1]
derHstat	[A/(m.s)]
Fixed geometry
l	Length in direction of flux [m]
A	Area of cross section [m2]
Losses and Heat
HeatPort
useHeatPort	=true, if HeatPort is enabled
Eddy Currents
includeEddyCurrents	=true, if eddy current losses are enabled
sigma	Conductivity of core material [S/m]
d	Thickness of lamination [m]

Connectors