19.9.10. Flux Linkage

Flux linkage can be computed for any system incorporating a conductor. Solving for flux linkage calculates the flux, ψ, linking a conductor. This is commonly referred to as the "flux linkage." For nonlinear systems, the flux linkage will be a function of current. Flux linkage is also a function of stroke (for example, displacement of an armature).

Flux linkage is often used to compute the emf (electromotive force) in a conductor, defined using the equation below, where V is the electromotive force, typically expressed in volts.

Conductor bodies must have defined current loads to be considered in flux linkage calculations. Flux linkage results are presented in the Worksheet View. The results are presented in table form. The example below shows flux linkage results for a two-conductor system.

 Flux Linkages (Wb)
Cond15e-4
Cond210e-4

The Details view for flux linkage allows you to define a Symmetry Multiplier. Use this if your simulation model represents only a fraction of the full geometry. The multiplier should be set to compensate for the symmetry model. For example, if you create a half-symmetry model of the geometry for simulation, set the Multiplier to '2.' Changing the multiplier will update the Worksheet results.


Note:
  • Computing flux linkage can be time-consuming and should only be used if needed.

  • Loads (Voltage, and Current) must be constant when flux linkage is specified. Tabular and function loads are not supported.

  • Flux linkage can only be used with a single step, single substep solution. User settings to the contrary will be overridden.

  • Flux linkage requires the Direct solver setting (default) for the Solver Type property of Analysis Settings. User settings to the contrary will be overridden.