Condition monitoring for mechanical faults in fully integrated servo drive systems

Author

Arellano-Padilla, Jesus ; Sumner, Mark ; Gerada, Chris

Author_Institution

Sch. of Electr.&Electron. Eng., Univ. of Nottingham, Nottingham

fYear

2008

fDate

1-3 Sept. 2008

Firstpage

769

Lastpage

775

Abstract

A modified motor current signature analysis (MCSA) approach to monitor the performance of a servo drive system using only one set of current transducers at the input side of the rectifier is proposed. The paper introduces a mathematical analysis to determine how the harmonic frequencies related to a fault propagate from the motor to the input inverter, and includes the effect of the DC link components. Experimental results are presented for a permanent magnet servo drive system with faulty bearings to validate the proposed scheme.

Keywords

condition monitoring; motor drives; rectifiers; servomotors; DC link components; condition monitoring; current transducers; harmonic frequencies; integrated servo drive systems; mathematical analysis; mechanical faults; modified motor current signature analysis; rectifier; Condition monitoring; DC motors; Frequency; Mathematical analysis; Performance analysis; Permanent magnet motors; Rectifiers; Servomechanisms; Servomotors; Transducers; Diagnostics; Integrated adjustable speed drive; Prognosis;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 13th

Conference_Location

Poznan

Print_ISBN

978-1-4244-1741-4

Electronic_ISBN

978-1-4244-1742-1

Type

conf

DOI

10.1109/EPEPEMC.2008.4635360

Filename

4635360