Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 194)

194 Rockwell Automation Publication 750-RM002B-EN-P - September 2013
Chapter 3 Diagnostics and Protection
Slip Regulator The slip regulator is used to compensate for temperature changes in an induction
motor when FOC is used. The slip regulator uses a model of the motor to
determine the desired d-axis voltage for a given operating point. A PI regulator is
then used to change the drive’s slip gain controlling the d-axis motor voltage.
This in turn compensates for motor temperature (resistance) changes. The
operation of the slip regulator is limited to regions where there is sufficient
voltage (feedback or estimate) for the regulator to converge.
As default the slip regulator is enabled.
Do not disable this regulator. If you feel you need to disable this function, consult
the factory for verification.