A Discrete Wavelet transform based Protection Scheme for Three Phase Induction Motor
Musthak Ahmed Shaik1, Sudheer Vinnakoti2, Malligunta Kiran Kumar3

1Musthak Ahmed Shaik, Research Scholar, Department of EEE, Koneru Lakshmaiah Education Foundation, Vaddeswaram, A.P, India.
2Sudheer Vinnakoti, Department of EEE, Raghu Engineering College (A), Dakamarri (V), Bheemunipatnam (M), A.P, India.
3Malligunta Kiran Kumar, Department of EEE, Koneru Lakshmaiah Education Foundation, Vaddeswaram, A.P, India.

Manuscript received on 18 August 2019. | Revised Manuscript received on 24 August 2019. | Manuscript published on 30 September 2019. | PP: 6366-6370 | Volume-8 Issue-3 September 2019 | Retrieval Number: C6894098319/2019©BEIESP | DOI: 10.35940/ijrte.C6894.098319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: This paper has proposed an approachwhich detects the stator turn to turn faults and phase to ground faults in stator winding of three induction motor. This method proposes analysis of stator winding currents for both normal and fault conditions. High frequency universal model of three phase induction motor used for MATLAB simulation. By using the wavelet MRA technique, the approximate and detailed coefficients of the faulty voltage and current waveforms of the machine are generated under different fault conditions. From the approximate coefficients the type of the fault has been identified. Depending on the energies of the signal the fault diagnosis can be done. The proposed protection scheme is reliable and fast for various fault inception angles.
Keywords: Wavelet Transform, Induction Motor, Protection.

Scope of the Article:
Discrete Optimization