Hi,(adsbygoogle = window.adsbygoogle || []).push({});

I am having the following problem: I worked my way through variou books and papers to model an induction motor and a basic indirect vector control scheme (using clarke and park transform etc).

Now, all is reasonably clear but 1 thing: how is the rotor flux value estimated.

It is my understanding that this value is a constant and non zero (in a permanent magnet synchronous machine this value can be set to zero).

I use a basic speed PI controller to calculate the iq_ref but how would I calculate id_ref for which I would need the rotor flux?

I hope there is someone how can help me.

cheers,

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Rotor flux estimation for vector control

Can you offer guidance or do you also need help?

**Physics Forums | Science Articles, Homework Help, Discussion**