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Alwodai, Ahmed; Gu, Fengshou; Ball, Andrew (2011)
Publisher: COMADEM
Languages: English
Types: Part of book or chapter of book
Subjects: TJ, T1
The induction motor is one of the most used electric machines in the industry because of its strong and simplicity. This paper investigates the performance of conventional techniques such as sideband analysis in detecting broken rotor bars when the motor is fed from a common pulse width modulation voltage source inverter PWM-VSI drive for variable speed drives. The phase current signals are obtained under both the slip compensation mode and non-compensation mode. The spectra are compared between the healthy and faulty motors in the frequency domain. For the non-slip compensation, it has shown clear sidebands of the twice slip frequency which allows the detection of the broken bar and hence rotor faults under different speeds and higher loads. However, for slip compensation, the sideband pattern does not exist anymore and hence new features have to be investigated for fault detection when motors operate under these operating modes.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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    • Reljic, D., Ostojic, D. and Vasic, V. 2006. Simple Speed Sensorless Control of Induction Motor Drive. Sixth International Symposium Nikola Tesla. Belgrade, Serbia, October 18 - 20, 2006 Fitzgerald, A.E., Charles, K. J. and Umans, S. D. 1986 Electric Machinery 4th Edition McGraw‐Hill Book Company Co‐ Siggapore, ISBN 0‐07‐Y66279‐7,pp. 409‐420.
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    • Hughes, A. 2001. Electric Motors and Drives‐fundamentals, Types and Applications. Newnes, 0750617411s Verucchi, C.J., Acosta G.G. and BENGER F.A. 2008. A Review on Fault Diagnosis of Induction Machines. Latin American Applied Research, 38, pp.113‐121 Thomson, W. T. 2001. On‐line MCSA to Diagnose Shorted Turns in Low Voltage Stator Windings of Three phase Induction Motors Prior to Failure. IEEE International Conference on Electric Machines and Drives, pp 891‐898.
    • Munoz‐Garcıa, A., Lipo, T. A. and Novotny, D. W. 1998. A New Induction Motor V/f Control Method Capable of High Performance Regulation at Low Speeds. IEEE Transactions on Industry Application, Vol. 34, No. 4, pp. 813‐821
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