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A CASE STUDY OF THE ELECTROMECHANICAL ANALYSIS OF THE AUDIBLE NOISE IN AN INVERTER FED INDUCTION MOTOR
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| Author(s) |
R. Belmans; W. Geysen |
| Abstract |
A computerized scheme is used to analyse the audible noise of an induction motor fed by a frequency inverter. Starting from the frequency spectrum of the inverter voltage, and accounting for the winding lay-out of the squirrel cage induction motor, the electromagnetically generated force components are calculated . Harmonic effects due to slatting and saturation are taken into consideration. A high audible noise level is to be expected if one of the frequencies of the electromagnetically generated force cornponents coincides with one of the natural frequencies of the stator assembly. The calculation of these natural frequencies is performed using the finite element method coupled with CAD techniques at the input and the output. The model analysis technique is used for experimental verification of the natural frequencies. |
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| Filename: | Unnamed file |
| Filesize: | 3.155 MB |
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| Type |
Members Only |
| Date |
Last modified 2021-02-23 by System |
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