Eddy Current - MapleSim Help
For the best experience, we recommend viewing online help using Google Chrome or Microsoft Edge.

Eddy Current

Eddy current in a conductive magnetic flux tube

 Description The Eddy Current component models an eddy current in an electrically conductive magnetic tube. The changing magnetic flux induces eddy currents in the material, which generate a magnetic voltage across the component. The magnetic voltage depends on the geometry and the electrical resistivity. The default resistivity is that of iron at 20C.
 Equations $\mathrm{\Phi }={\mathrm{\Phi }}_{p}=-{\mathrm{\Phi }}_{n}$ ${V}_{m}={V}_{{m}_{p}}-{V}_{{m}_{n}}=\frac{1}{R}\stackrel{.}{\mathrm{\Phi }}$ $\mathrm{LossPower}={V}_{m}\stackrel{.}{\mathrm{\Phi }}$

Variables

 Name Units Description Modelica ID ${V}_{m}$ $A$ Magnetic potential difference between both ports V_m $\mathrm{\Phi }$ $\mathrm{Wb}$ Magnetic flux from port_p to port_n Phi $\mathrm{LossPower}$ $W$ Loss power leaving component via HeatPort LossPower ${T}_{\mathrm{heatPort}}$ $K$ Temperature of HeatPort T_heatPort

Connections

 Name Description Modelica ID ${\mathrm{port}}_{p}$ Positive magnetic port port_p ${\mathrm{port}}_{n}$ Negative magnetic port port_n $\mathrm{heatPort}$ heatPort

Parameters

General Parameters

 Name Default Units Description Modelica ID $A$ $1$ ${m}^{2}$ Cross sectional area of eddy current path A $l$ $1$ $m$ Average length of eddy current path l $\mathrm{\rho }$ $9.8·{10}^{-8}$ $\mathrm{\Omega }m$ Resistivity of flux tube material (default: Iron at 20degC) rho Use Heat Port $\mathrm{false}$ True (checked) means heat port is enabled useHeatPort

Constant Parameters

 Name Default Units Description Modelica ID $R$ $\frac{\mathrm{\rho }l}{A}$ $\mathrm{\Omega }$ Electrical resistance of eddy current path R $T$ $273.15$ $K$ Fixed device temperature if Use Heat Port is false T

 Modelica Standard Library The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.