Journal
ISA TRANSACTIONS
Volume 80, Issue -, Pages 439-457Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.isatra.2018.07.020
Keywords
Induction motor (IM); Broken rotor bar (BRB); Fault detection; Hilbert Transform (HT) and motor current signature analysis (MCSA)
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This paper presents a new approach to detect the location of multiple broken rotor bars (MBRBs) in induction motor (IM) drive, running under no load and full load conditions using direct in and variable frequency drives. This technique is based on earlier work of location detection of one broken rotor bar. The techniques are tested for various fault severity levels so the detection of the exact location of the fault at early stage helps to reach sufficient time maintenance. In this paper, the authors used Hilbert Transform to extract the fault signature from the stator current envelope which is the low frequency component. Then statistical analysis is applied which produce a formula that is used to get the exact location of the fault in IM rotor.
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