Wound field synchronous machines - New export

Short circuit export for the wound field synchronous machines

The aim of the export “Characterization - Short circuit – Motor & Generator – Three / Two / Single Phase” is to characterize the behavior of the machine, when considering a short circuit happening between three phases, two phases or a single phase.

The resulting model is fully parameterized, and it is built in the Flux® 2D / Skew environment, transient application.

The type of short circuit can be chosen from a list of choice:
  • Three-phase: the three phases of the stator windings are short circuited.
  • Two-phase: the first phase and second phase of the stator windings are short circuited.
  • Single-phase: the first phase of the stator windings is short circuited.

In the Flux project, the field winding is supplied by a voltage source to fully simulate the transient behavior of the machine.

And the scenario is piloted in time instead of rotor position. The scenario can be tuned via the number of points per electrical period, the number of electrical periods in the open circuit state, in the short circuit state and the short circuit instant.

The short circuit instant is the most important factor causing the different behavior of the short circuit transient curve. It can be chosen from a list of choice:
  • Instant 0: the linkage flux of the first phase winding is supposed to be maximum.
  • Instant 1/4: the linkage flux of the first phase winding is supposed to be zero.
  • Instant 1/2: the linkage flux of the first phase winding is supposed to be minus maximum.
  • Instant 3/4: the linkage flux of the first phase winding is supposed to be zero.
Short circuit instant illustration

Here below is an overview of the export “Characterization - Short circuit – Motor & Generator – Three / Two / Single Phase”.



Export – Characterization – Short circuit – Motor & Generator – Three / Two / Single Phase – Synchronous Machines with wound field – Inner salient pole - Inner rotor (SMWF-ISP-IR) - Overview