Passive Conductor

Analysis > Magnetic Transient Loads > Passive Conductor

Introduction

This functionality can be used currently to define some bodies as passive conductors. Defining a body as a passive conductor allows the computation of eddy currents in that body. This will enable the calculation of Joule losses due to these eddy currents in the results requests panel. Skin effect is also simulated using this functionality.

A typical example, for 2D and 3D Transient Magnetic solutions, is to define permanent magnets in rotating machines as passive conductors to enable calculation of magnet losses.

Note: This load allows to define only a Passive Conductor without using Circuit Designer.
Note: It is mandatory to assign to the passive conductor bodies a material with a resistivity value.
Note: See Coils modeling for more explanations about the different possibilities of modelling of coils.

Dialog Box for 3D Transient Magnetic solution



Steps for 2D and 3D Transient Magnetic solutions

For 2D and 3D Transient Magnetic solutions, to define a magnet as passive conductor:

  1. Assign a Material with a hard magnetic (Permanent Magnet) property and an electrical resistivity to a body
  2. Define the magnet load
    • define the magnet orientation
    • take into account the demagnetization or not
      Note: In order to take into account the demagnetization, the permanent magnet material must be non-linear.
  3. Assign the body to passive conductor load