Package Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShapeFlux tubes with fixed shape during simulation and linear or non-linear material characteristics
Package Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape
This package provides different reluctance models, based on different geometric data.
Extends from Modelica.Icons.VariantsPackage (Icon for package containing variants).
| Name | Description |
|---|---|
Cuboid | Flux tube with rectangular cross-section; fixed shape; linear or non-linear material characteristics |
GenericFluxTube | Flux tube with fixed cross-section and length; linear or non-linear material characteristics |
HollowCylinderAxialFlux | (Hollow) cylinder with axial flux; fixed shape; linear or non-linear material characteristics |
HollowCylinderRadialFlux | Hollow cylinder with radial flux; fixed shape; linear or non-linear material characteristics |
Model Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape.GenericFluxTube
The generic flux tube models the reluctance with constant
area of cross section, and length, l
the magnetic reluctance by:
,
Extends from Modelica.Magnetic.QuasiStatic.FluxTubes.Interfaces.PartialFixedShape (Base class for flux tubes with fixed shape during simulation; linear or non-linear material characteristics).
| Type | Name | Default | Description |
|---|---|---|---|
RelativePermeability | mu_rConst | 1 | Constant relative permeability |
Length | l | 0.01 | Length in direction of flux |
CrossSection | area | 1e-4 | Area of cross section |
| Type | Name | Description |
|---|---|---|
PositiveMagneticPort | port_p | Positive quasi-static magnetic port |
NegativeMagneticPort | port_n | Negative quasi-static magnetic port |
Model Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape.Cuboid
The cuboid models the reluctance with rectangular dimensions a and b, and length, l
the magnetic reluctance by:
The area of cross section is determined by:
Extends from Modelica.Magnetic.QuasiStatic.FluxTubes.Interfaces.PartialFixedShape (Base class for flux tubes with fixed shape during simulation; linear or non-linear material characteristics).
| Type | Name | Default | Description |
|---|---|---|---|
RelativePermeability | mu_rConst | 1 | Constant relative permeability |
Length | l | 0.01 | Length in direction of flux |
Length | a | 0.01 | Width of rectangular cross-section |
Length | b | 0.01 | Height of rectangular cross-section |
| Type | Name | Description |
|---|---|---|
PositiveMagneticPort | port_p | Positive quasi-static magnetic port |
NegativeMagneticPort | port_n | Negative quasi-static magnetic port |
Model Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape.HollowCylinderAxialFlux
The axial cylinder models is characterized by the outer diameter, 
, the inner diameter, 
, length, 
. The magnetic reluctance is determined by:
The area of cross section yields:
A hollow cylinder is depicted in the above figure left for 
. A solid cylindric flux tube an be considered by setting the inner radius, , equal to zero.
A circular sector of the area of cross section with central angle 
is depicted in the above figure right.
Extends from Modelica.Magnetic.QuasiStatic.FluxTubes.Interfaces.PartialFixedShape (Base class for flux tubes with fixed shape during simulation; linear or non-linear material characteristics).
| Type | Name | Default | Description |
|---|---|---|---|
RelativePermeability | mu_rConst | 1 | Constant relative permeability |
Length | l | 0.01 | Axial length (in direction of flux) |
Radius | r_i | 0 | Inner radius of hollow cylinder (zero for cylinder) |
Radius | r_o | 0.01 | Outer radius of (hollow) cylinder |
Angle | alpha | 2 * Modelica.Constants.pi | Central angle |
| Type | Name | Description |
|---|---|---|
PositiveMagneticPort | port_p | Positive quasi-static magnetic port |
NegativeMagneticPort | port_n | Negative quasi-static magnetic port |
Model Modelica.Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape.HollowCylinderRadialFlux
The radial cylinder model is characterized by the outer diameter, , the inner diameter, , length, , and the angle . The magnetic reluctance is determined by:
In this model the magnetic flux and the magnetic potential difference, respectively, are radially oriented.
The above figure left shows a radial flux cylinder with . The figure on the right indicates the central angle in case a cylinder section shall be considered.
Extends from Modelica.Magnetic.QuasiStatic.FluxTubes.Interfaces.PartialFixedShape (Base class for flux tubes with fixed shape during simulation; linear or non-linear material characteristics).
| Type | Name | Default | Description |
|---|---|---|---|
RelativePermeability | mu_rConst | 1 | Constant relative permeability |
Length | l | 0.01 | Width (orthogonal to flux direction) |
Radius | r_i | 0.01 | Inner radius of hollow cylinder |
Radius | r_o | 0.02 | Outer radius of hollow cylinder |
Angle | alpha | 2 * Modelica.Constants.pi | Central angle |
| Type | Name | Description |
|---|---|---|
PositiveMagneticPort | port_p | Positive quasi-static magnetic port |
NegativeMagneticPort | port_n | Negative quasi-static magnetic port |