Mesauring position and speed in a 3 phase BLDC motor?

[erlend johannesen]

Hi!

I was wondering if you could help me with a problem. What I want to do is control and measure a 3 phase BLDC motors position and speed prefferably using a PID controller (or two!).

The position part isn't too hard (I think I got it!), but having a PID controller measuring the time from the trigger pulse to the desired position within a desired time is harder. The speed-PID controller should automatically adjust parameters so the next motor rotation will get to the exact position within the desired time.

Can anyone help me with this problem?

[Jochen]

Could you please provide some information about the hard- and software that you are using to control the motor?

Thanks,

Jochen