Research on the Amplitude Features of Stator Current for Motor with Bearing Faults

DOI

10.2991/cisia-15.2015.228How to use a DOI?

Keywords

motor; bearing; fault; phase modulation; amplitude

Abstract

Martin Blödt first introduced that the modulation mode between fundamental frequency of rotor vibration, which is caused by bearing faults, and fundamental frequency of stator current is phase modulation. This paper accomplished the theoretical derivation about the impact of bearing fault on stator current based on torque vibration harmonics, and gave the amplitude expression of stator current fault-related frequencies. The bearing fault simulation device which could simulate single-point defect was established. The effect of torque vibration harmonics on stator current amplitude was verified by simulation and experimental research. The obtained results showed that the amplitude features of stator current are not only related to the fault severity but also related to the size of the fault zone.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - X.B Wu
AU  - C.D Qiu
AU  - G.Z Cheng
AU  - Z.Y Xue
PY  - 2015/06
DA  - 2015/06
TI  - Research on the Amplitude Features of Stator Current for Motor with Bearing Faults
BT  - Proceedings of the International Conference on Computer Information Systems and Industrial Applications
PB  - Atlantis Press
SP  - 850
EP  - 852
SN  - 2352-538X
UR  - https://doi.org/10.2991/cisia-15.2015.228
DO  - 10.2991/cisia-15.2015.228
ID  - Wu2015/06
ER  -