Broken rotor bars diagnosis in an induction motor fed from a frequency converter: experimental research

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• 作者：K. Yahia (12) kdyahia@mail.co.it.pt
  A. J. M. Cardoso (23) ajmcardoso@ieee.org
  S. E. Zouzou (1)
  S. Gueddidi (1)
• 关键词：Induction motor – ; Frequency converter – ; Broken rotor bars fault diagnosis – ; Motor current signature analysis (MCSA)
• 刊名：International Journal of Systems Assurance Engineering and Management
• 出版年：2012
• 出版时间：March 2012
• 年：2012
• 卷：3
• 期：1
• 页码：40-46
• 全文大小：389.0 KB
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• 作者单位：1. Electrical Engineering Laboratory, Department of Electrical Engineering, University of Biskra, Biskra, Algeria2. Department of Electrical and Computer Engineering, Instituto de Telecomunica莽玫es, University of Coimbra, P贸lo 2, 3030-290 Coimbra, Portugal3. Department of Electromechanical Engineering, University of Beira Interior, Cal莽ada Fonte do Lameiro, 6201-001 Covilha, Portugal
• 刊物类别：Engineering
• 刊物主题：Operating Procedures and Materials Treatment
  Quality Control, Reliability, Safety and Risk
  
• 出版者：Springer India

文摘

Rotor electrical faults are common types of faults in squirrel cage induction motors (IMs) and have been investigated in detail under steady state conditions for direct mains-fed machines. Motor current signature analysis (MCSA) has been widely reported in the literature as a suitable fault diagnostic technique for directly-supplied IMs. However, when an induction motor is fed from a frequency converter composed of a rectifier, DC link filter and a PWM inverter, its characteristic signals (currents, voltages, electromagnetic torque, etc.) become very noisy. This paper presents an experimental analysis of a damaged squirrel cage induction motor supplied from an industrial frequency converter at different speed and load levels. The main purpose is to experimentally study the ability of the MCSA to diagnose the occurrence of broken rotor bars under these operating conditions.