Is it possible to simulate faults such as broken rotor bars and stator windings faults using the asynchronous machine block in Simulink

It is my understanding that increasing the rotor resistance should emulate the broken rotor bar fault and similarly with stator resistance. However in the case of rotor bars, the documentation or the parameter section of the block does not show the number of rotor bars for any of the models. Therefore trying to calculate the resistance for 1 rotor bar seems to be an issue. Does anyone know where I can find more details about this?

I am trying to simulate various fault conditions which I would then try to compare with the healthy model in the frequency domain.

Answer 1

[Sabin]

Normally we can model electrical machines by representing each winding as a single entity with associated inductance, electromotive force, and mutual inductive coupling to adjacent windings. However, when a winding fault occurs, the single entity assumption breaks down. To correctly capture the resulting dynamics, you have to model the motor at a winding slot level. This requires modeling in the magnetic domain. Simscape Electrical has an example of a faulted PMSM that may be used as a starting point:

https://mathworks.com/help/sps/ug/motor-pmsm-faulted.html