SLIP GAIN TUNING IN INDIRECT FIELD-ORIENTED CONTROL DRIVES

The paper presents a simple technique for correctly and fastly tuning the slip gain in Indirect Field Oriented Control drives. To this aim n o other transducers than the tachogenerator, usually included in such drives, are needed, as the tuning operation is performed by processing the effects of a suitable test signal injected in the system. The pro posed approach can be used either for on-line retuning of working driv es, either for the initial tuning of new installed drives. Simulation and experimental tests show that the procedure is effective and does n ot interfere with normal operations of the drive.