System Identification and Sensor Calibration Methods for Commissioning of Bearingless Machines

This paper presents a practical and comprehensive guide for commissioning bearingless machines (BMs). While significant research has been conducted on the commissioning of electric machines (EMs) and magnetic bearings (MBs), relatively little attention has been given to bringing up BMs. Motivated by this gap, the paper presents step-by-step methods for commissioning of BMs. Two major contributions are outlined in the paper. First, static characterization and sensor calibration techniques which are necessary for levitating the machine, are introduced. Second, a system identification (System ID) procedure for each plant is presented. This paper emphasizes practical testing sequences that are immediately applicable to real-world prototyping efforts. By following the procedures provided by the paper, engineers and researchers can efficiently commission BMs while ensuring precise sensor calibration and accurate dynamic modeling.