Rotor Fault Detection System for the Inverter Driven Induction Motor using Current Signals

Nam-Hun Kim; Won-Sik Baik; Min-Huei Kim; Chang-Ho Choi

Rotor Fault Detection System for the Inverter Driven Induction Motor using Current Signals

Vol. 9, No. 2, pp. 224-231, Mar. 2009

10.6113/JPE.2009.9.2.224

Fault diagnosis

Induction motor

rotor fault

inverter driven system

Current signals

PDF

Abstract

The induction motor rotor fault diagnosis system using current signals, which are measured using an axis-transformation method, is presented in this paper. In inverter-fed motor drives, unlike line-driven motor drives, the stator currents are rich in harmonics; therefore fault diagnosis using stator current is not trivial. The current signals for rotor fault diagnosis need precise and high resolution information, which means the diagnosis system demands additional hardware such as a low pass filter, high resolution ADC, and encoder, etc. The proposed axis-transformation method with encoder and without encoder is expected to contribute to a low cost fault diagnosis system in inverter-fed motor drives without the need for any additional hardware. In order to confirm the validity of the developed algorithms, various experiments for rotor faults are tested and the line current spectrum of each faulty situation using Park transformation is compared with the results obtained from fast Fourier transforms.

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Cite this article

[IEEE Style]

N. Kim, W. Baik, M. Kim, C. Choi, "Rotor Fault Detection System for the Inverter Driven Induction Motor using Current Signals," Journal of Power Electronics, vol. 9, no. 2, pp. 224-231, 2009. DOI: 10.6113/JPE.2009.9.2.224.

[ACM Style]

Nam-Hun Kim, Won-Sik Baik, Min-Huei Kim, and Chang-Ho Choi. 2009. Rotor Fault Detection System for the Inverter Driven Induction Motor using Current Signals. Journal of Power Electronics, 9, 2, (2009), 224-231. DOI: 10.6113/JPE.2009.9.2.224.