Title :
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
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;
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
DOI :
10.1109/EPEPEMC.2008.4635360
