EddyCurrent

Constant loss model under sinusoidal magnetic conditions

    EddyCurrent

Library

Modelica/Magnetic/QuasiStatic/FundamentalWave/Components

Description

The eddy current loss model with respect to fundamental wave effects is designed in accordance to FluxTubes.Basic.EddyCurrent and FundamentalWave.Components.EddyCurrent.

  .

Fig. 1: equivalent models of eddy current losses

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 electro magnetic 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

FluxTubes.Basic.EddyCurrent

Parameters

EddyCurrent_0

NameLabelDescriptionData TypeValid Values

mo_j

j

Scalar

mo_G

G

Equivalent symmetric loss conductance

Scalar

mo_useHeatPort

useHeatPort

=true, if heatPort is enabled

Number

0
1

mo_T

T

Fixed device temperature if useHeatPort = false

Scalar

EddyCurrent_1

NameLabelDescriptionData TypeValid Values

mo_omega

omega

omega

Structure

mo_omega/fixed

fixed

Cell of scalars

true
false

mo_omega/start

start

Cell of scalars

mo_abs_V_m

abs_V_m

abs_V_m

Structure

mo_abs_V_m/fixed

fixed

Cell of scalars

true
false

mo_abs_V_m/start

start

Cell of scalars

mo_arg_V_m

arg_V_m

arg_V_m

Structure

mo_arg_V_m/fixed

fixed

Cell of scalars

true
false

mo_arg_V_m/start

start

Cell of scalars

mo_abs_Phi

abs_Phi

abs_Phi

Structure

mo_abs_Phi/fixed

fixed

Cell of scalars

true
false

mo_abs_Phi/start

start

Cell of scalars

mo_arg_Phi

arg_Phi

arg_Phi

Structure

mo_arg_Phi/fixed

fixed

Cell of scalars

true
false

mo_arg_Phi/start

start

Cell of scalars

mo_lossPower

lossPower

lossPower

Structure

mo_lossPower/fixed

fixed

Cell of scalars

true
false

mo_lossPower/start

start

Cell of scalars

mo_TheatPort

TheatPort

TheatPort

Structure

mo_TheatPort/fixed

fixed

Cell of scalars

true
false

mo_TheatPort/start

start

Cell of scalars

Ports

NameTypeDescriptionIO TypeNumber

port_p

implicit

Positive quasi-static magnetic port of fundamental wave machines

input

1

port_n

implicit

Negative quasi-static magnetic port of fundamental wave machines

output

1

Port 3

implicit

Optional port to which dissipated losses are transported in form of heat

input

mo_useHeatPort