Identification between broken rotor bars and low-frequency load torque fluctuations in a three-phase induction motor Online publication date: Fri, 01-Mar-2024
by Ranjan Sasti Charan Pal; Amiya Ranjan Mohanty
International Journal of Automation and Control (IJAAC), Vol. 18, No. 2, 2024
Abstract: Motor current signature analysis is an efficient methodology for fault diagnosis of induction motors. The appearance of broken rotor bars creates pole pass frequency (fPPF). Applied load torque creates low-frequency load torque fluctuations at frequency (fL), which tends to exist in the vicinity of fPPF. Hitherto, techniques have been proposed wherein synchronised monitoring of three-phase currents and three-phase voltages are measured by three current and three voltage sensors. This leads to a requirement for a data acquisition (DAQ) unit with at least six channels that make the overall system expensive and cumbersome in the field. However, in the present article, a new fault diagnostic approach has been proposed, which considers current data being monitored only from one single phase and thus requires only one single channel of DAQ that makes the overall system economical and portable for easy field deployment. The proposed analytical study has been verified with experimental results and finite element method.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Automation and Control (IJAAC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook