Method for monitoring an electric motor and detecting a departure from normal operation
AssigneeSiemens Corporate Research, Inc.
InventorsThomas Petsche, Charles Garrett
Life of this patent
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Abstract
A method for detecting a departure from normal operation of an electric motor comprises the steps of modelling a set of normal current measurements and a set of operational current measurements for the motor being monitored. The modelling is carried out by a neural network auto-associator which is trained to reproduce its inputs on its output. A potential failure is indicated whenever the set of normal current measurements and the set of operational current measurements differ by more than a predetermined criterion.
Claims4
A method for detecting a departure from normal operation of an electric motor, comprising:
- modelling a set of normal current measurements for a motor being monitored;
- modelling a set of operational current measurements for said motor being monitored, wherein said modelling is carried out by a neural network auto-associator which is trained to reproduce its inputs on its output;
- indicating a potential failure whenever said set of normal current measurements and said set of operational current measurements differ by more than a predetermined criterion.
Dependencies are inferred from the claim text.