Tuning PI regulator IRMCK099M

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User17471
Level 2
Level 2
5 replies posted First question asked First reply posted
I'm trying to tune speed regulator PI in EVAL-M1-099M with IRMCK099M.
When I reduce speed regulator PI, motor (PMSM) rotates smoothly at low speed. But when I load the motor, it first brakes and only after a second restores speed.
If I increase speed PI gain the motor practically does not brake under load, but at low speed the motor runs with jerks.

How can I achieve a smooth motor rotation at low speed and good speed maintenance?
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