TY - JOUR
T1 - A comparison of phase space reconstruction and spectral coherence approaches for diagnostics of bar and end-ring connector breakage faults in polyphase induction motors using current waveforms
AU - Povinelli, Richard J.
AU - Johnson, Michael T.
AU - Bangura, John F.
AU - Demerdash, Nabeel A.O.
PY - 2002
Y1 - 2002
N2 - Two signal (waveform) analysis approaches are investigated in this paper for motor-drive fault identification - one linear and the other nonlinear. Twenty-one different motor-drive operating conditions including healthy, 1 through 10 broken bars, and 1 through 10 broken end-ring connectors are investigated. Highly accurate numerical simulations of current waveforms for the various operating conditions are generated using the Time Stepping Coupled Finite Element - State Space method for a 208-volt, 60-Hz, 2-pole, 1.2-hp, squirrel cage 3-phase induction motor. The linear signal analysis method is based on spectral coherence, whereas the nonlinear signal analysis method is based on stochastic models of reconstructed phase spaces. Conclusions resulting from the comparisons of these two methods are drawn.
AB - Two signal (waveform) analysis approaches are investigated in this paper for motor-drive fault identification - one linear and the other nonlinear. Twenty-one different motor-drive operating conditions including healthy, 1 through 10 broken bars, and 1 through 10 broken end-ring connectors are investigated. Highly accurate numerical simulations of current waveforms for the various operating conditions are generated using the Time Stepping Coupled Finite Element - State Space method for a 208-volt, 60-Hz, 2-pole, 1.2-hp, squirrel cage 3-phase induction motor. The linear signal analysis method is based on spectral coherence, whereas the nonlinear signal analysis method is based on stochastic models of reconstructed phase spaces. Conclusions resulting from the comparisons of these two methods are drawn.
KW - Dynamical systems analysis
KW - Electric drives
KW - Fault diagnosis
KW - Induction motors
KW - Spectral coherence
KW - State space methods
KW - Time stepping finite elements
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M3 - Conference article
AN - SCOPUS:0036443051
SN - 0197-2618
VL - 3
SP - 1541
EP - 1547
JO - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
JF - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
T2 - 37th IAS Annual Meeting and World Conference on Industrial applications of Electrical Energy
Y2 - 13 October 2002 through 18 October 2002
ER -