Hi everyone! I have a resolver with 2 pole pairs, but i need this one with 5 pole pairs. I would like to replace the 2 pp rotor with the 5pp rotor. Does anyone know, how to determine the correct shape of the rotor? Are any artikles or books about this? I have the equipment to make such a new rotor, and I don't want to buy a new resolver because i have many 2pp rotors.

 

What application is it used on? Why do you need the extra pairs?

 

I need to control an electromotor PMSM, 10kW. The motor has 5 pole pair, so the resolver must have the same number of poles.

 

Does the motor presently have an encoder, shaft or thro-hole type?
I used to obtain an encoder with the commutation track on them from Renco Encoder, unfortunately they have since been taken over by Heidenhain so may be harder to get and/or more $$$'s.
There are other suppliers, It may be more effective and efficient to go this way if possible.
Resolvers are not so popular for this application now.

 

Resolvers are implemeted in most traction motors for electric vehicles