Example 10: Analysis of an Electric Motor

This example studies the 2D static magnetic field due to the stator winding in a two-pole electric motor[5].

Figure 135 Geometry definition

The magnetic potential is governed by the equation:

Where Az is the magnetic potencial, Jz is the current density and m is the magnetic permeability.

For this problem we will use the URSOLVER module of Tdyn. This module extends Tdyn for the study and solution of partial diferential equations (PDE) defined by the user. The new variables defined in this module (noted internally as ph1, ph2, ph3, being ph1 the solution of the first defined equation, ph2 the solution of the second, etc) can be coupled with any other variable of the problem.

In terms of the standard notation used in the URSOLVER module, above equation can be re-written as: