Abstract
Condition monitoring of rotor problems such as
demagnetization and eccentricity in permanent magnet
synchronous motors (PMSM) is essential for guaranteeing high
motor performance, efficiency, and reliability. However, there
are many limitations to the off-line and on-line methods currently
used for PMSM rotor quality assessment. In this paper, an
inverter-embedded technique for automated detection and
classification of PMSM rotor faults is proposed as an alternative.
The main concept is to use the inverter to perform a test
whenever the motor is stopped, to detect rotor faults independent
of load torque oscillations, which is not possible with MCSA. The
rotor d-axis is excited with a dc+ac pulse, and the variation in the
inductance pattern due to the change in the degree of magnetic
saturation caused by demagnetization and/or eccentricity is
observed. An experimental study on a 10hp PMSM verifies that
demagnetization and eccentricity can be detected and classified
independent of the load with high sensitivity.
| Originalsprache | Englisch |
|---|---|
| Titel | ECCE Conference Proceedings |
| Seiten | 1-9 |
| Seitenumfang | 9 |
| Publikationsstatus | Veröffentlicht - 2011 |
| Veranstaltung | IEEE Energy Conversion Congress & Exposition, ECCE 2012 - Dauer: 15 Sept. 2012 → 20 Sept. 2012 |
Konferenz
| Konferenz | IEEE Energy Conversion Congress & Exposition, ECCE 2012 |
|---|---|
| Zeitraum | 15/09/12 → 20/09/12 |
Research Field
- Nicht definiert
Schlagwörter
- AC Machine; Condition Monitoring; d-axis Inductance; Demagnetization; Eccentricity; Magnetic Saturation; Motor Current Signature Anlaysis (MCSA); Off-line Testing; Permanent Magnet (PM); Synchronous Motor (SM)