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FOC: 'alignment electrical angle' and low speed

Question asked by David Martins on Mar 9, 2017
Latest reply on Mar 15, 2017 by David Martins



I'm using the FOC SDK (v4.3) with a incremental encoder.
I need to know what, in practice, means the angle placed on "alignment electrical angle".



I'm having some problems because I'm using a BLDC motor and at low speed the motor has a lot of cogging.
Do you have any suggestions to solve this?

Throughout the range of 500->4000RPM everything works well! Below 500RPM it is difficult to maintain control. I'm using an encoder with 500ppr on a motor with 2 pairs of poles.

Do you have any idea?

Thank you.