Modelica.Magnetic.FluxTubes.BaseClasses

Base classes of flux tube components

Information

Extends from Modelica.Icons.BasesPackage (Icon for packages containing base classes).

Package Content

Name	Description
FixedShape	Base class for flux tubes with fixed shape during simulation; linear or non-linear material characteristics
Force	Base class for flux tubes with reluctance force generation; constant permeability
Leakage	Base class for leakage flux tubes with position-independent permeance and hence no force generation; mu_r=1
Generic	Partial Tellinen hysteresis model
GenericHysteresis	Partial hysteresis model
GenericHysteresisTellinen	Partial Tellinen hysteresis model

Modelica.Magnetic.FluxTubes.BaseClasses.FixedShape

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 Interfaces.TwoPort (Interface component including flux balance equation).

Parameters

Name	Description
Initialization
Phi	Magnetic flux from port_p to port_n [Wb]
Material
nonLinearPermeability	= true, if non-linear rel. permeability is used, otherwise constant rel. permeability
mu_rConst	Constant relative permeability; used if nonLinearPermeability = false [1]
material	Ferromagnetic material characteristics; used if nonLinearPermeability = true

Connectors

Name	Description
port_p	Positive magnetic port
port_n	Negative magnetic port

Modelica.Magnetic.FluxTubes.BaseClasses.Force

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 Interfaces.TwoPort (Interface component including flux balance equation).

Parameters

Name	Description
useSupport	= true, if support flange enabled, otherwise implicitly grounded
mu_r	Relative magnetic permeability [1]
dlBydx	Derivative of flux tube's varying dimension with respect to armature position; set to +1 or -1
Initialization
Phi	Magnetic flux from port_p to port_n [Wb]

Connectors

Name	Description
port_p	Positive magnetic port
port_n	Negative magnetic port
flange	Generated reluctance force at armature position
support	Support/housing of component

Modelica.Magnetic.FluxTubes.BaseClasses.Leakage

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 Interfaces.TwoPort (Interface component including flux balance equation), Modelica.Magnetic.FluxTubes.Icons.Reluctance (Icon for reluctance / permeance components).

Parameters

Name	Description
Initialization
Phi	Magnetic flux from port_p to port_n [Wb]

Connectors

Name	Description
port_p	Positive magnetic port
port_n	Negative magnetic port

Modelica.Magnetic.FluxTubes.BaseClasses.Generic

Partial Tellinen hysteresis model

Information

Extends from Interfaces.TwoPort (Interface component including flux balance equation), Modelica.Magnetic.FluxTubes.Icons.Reluctance (Icon for reluctance / permeance components).

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

Name	Description
port_p	Positive magnetic port
port_n	Negative magnetic port

Modelica.Magnetic.FluxTubes.BaseClasses.GenericHysteresis

Partial hysteresis model

Information

Extends from BaseClasses.Generic (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

Name	Description
port_p	Positive magnetic port
port_n	Negative magnetic port
heatPort

Modelica.Magnetic.FluxTubes.BaseClasses.GenericHysteresisTellinen

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);

Fig. 1: Description of the Tellinen hysteresis model.

Extends from BaseClasses.GenericHysteresis (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

Name	Description
port_p	Positive magnetic port
port_n	Negative magnetic port
heatPort

Automatically generated Thu Oct 1 16:07:49 2020.