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Hello sir,
I am using DesignDRIVE IDDK kit with pmsm motor, I have completed all step successfully i.e current, speed and position loops, but I am facing speed ripples in motors I am tweaking all control loops cofficents and invest too much time to solve this problem but still facing this, please help me how to minimize speed ripples.
Regard
Run the motor in open loop and see if the speed feedback is good. If you see ripples here, then it is difficult.