2025-06-12 1:57 AM - edited 2025-06-12 2:53 AM
Hello,
I am using the FOC with hall sensor (having at 15 degree mechanical accuracy) on a BLDC motor controlled by STEVAL-PTOOL4A. I am using the MCSDK v6.3.2.
I activated the Overmodulation in order to drive my motor at 18500RPM. However at this speed and without load I have a weird current signal. It is like a noise. However, when I run the motor at 8000RPM the signal is much better and it starts to be sinusoidal when I apply a load on my motor.
Here are the current:
At high speed no load
At low speed no load:
At low speed with load:
Without OverModulation, at 17000 RPM with load:
Can anyone help me with this.
Thank you.