modelEddyCurrent
Extends from Interfaces.TwoPort (Elementary partial two port for textual programming), Modelica.Thermal.HeatTransfer.Interfaces.PartialElementaryConditionalHeatPort (Partial model to include a conditional HeatPort in order to dissipate losses, used for textual modeling, i.e., for elementary models).
Information
The eddy current loss model with respect to fundamental wave effects is designed in accordance to FluxTubes.Basic.EddyCurrent and FundamentalWave.Components.EddyCurrent.
.
|
Due to the nature of eddy current losses, which can be represented by symmetric
conductors in an equivalent electric circuit (Fig. 1), the respective
number of phases 
has to be taken into account.
Assume that the conductances
of the equivalent circuit are 
,
the conductance for the eddy current loss model is determined by
where 
is the number of turns of the symmetric electromagnetic coupling.
For such an phase system
the relationship between the voltage and current space phasors
and the magnetic flux and magnetic potential difference phasor is
,
,
where 
and 
are the phase voltages and currents, respectively.
The dissipated loss power
can be determined for the space phasor relationship of the voltage and current space phasor.
See also
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Complex | j | Complex(0, 1) | |
| SI.Conductance | G | Equivalent symmetric loss conductance | |
| Boolean | useHeatPort (from PartialElementaryConditionalHeatPort) | false | = true, if heatPort is enabled |
| SI.Temperature | T (from PartialElementaryConditionalHeatPort) | 293.15 | Fixed device temperature if useHeatPort = false |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| FundamentalWave.Interfaces.PositiveMagneticPort | port_p (from TwoPortElementary) | Positive quasi-static magnetic port of fundamental wave machines | |
| FundamentalWave.Interfaces.NegativeMagneticPort | port_n (from TwoPortElementary) | Negative quasi-static magnetic port of fundamental wave machines | |
| HeatTransfer.Interfaces.HeatPort_a | heatPort (from PartialElementaryConditionalHeatPort) | Optional port to which dissipated losses are transported in form of heat |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.AngularVelocity | omega (from TwoPortElementary) | der(port_p.reference.gamma) | Reference angular velocity (= der(port_p.reference.gamma)) |
| SI.ComplexMagneticPotentialDifference | V_m (from TwoPortExtended) | port_p.V_m - port_n.V_m | Complex magnetic potential difference |
| SI.MagneticPotentialDifference | abs_V_m (from TwoPortExtended) | Modelica.ComplexMath.abs(V_m) | Magnitude of complex magnetic potential difference |
| SI.Angle | arg_V_m (from TwoPortExtended) | Modelica.ComplexMath.arg(V_m) | Argument of complex magnetic potential difference |
| SI.ComplexMagneticFlux | Phi (from TwoPortExtended) | port_p.Phi | Complex magnetic flux |
| SI.MagneticFlux | abs_Phi (from TwoPortExtended) | Modelica.ComplexMath.abs(Phi) | Magnitude of complex magnetic flux |
| SI.Angle | arg_Phi (from TwoPortExtended) | Modelica.ComplexMath.arg(Phi) | Argument of complex magnetic flux |
| SI.Power | lossPower (from PartialElementaryConditionalHeatPort) | Loss power leaving component via heatPort (> 0, if heat is flowing out of component) | |
| SI.Temperature | TheatPort (from PartialElementaryConditionalHeatPort) | Temperature of heatPort |