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A PWM control strategy for reducing acoustic noise
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| Author(s) |
A. Hubert; G. Friedrich |
| Abstract |
Acoustic noise generated by the association of an electric machine and its converter becomes of prime
importance for choosing an electrical drive. Most studies deal with the electromechanical aspects
(radial stress on the stator) and mechanical aspects (vibrations and acoustic) in a disassociated way.
The presented study proposes to treat the whole problem with one same tool, based on the rotating
field theory and a two-dimensions associated spectrum analysis. The aim is to find a control strategy
and its parameters (e.g. chopping frequency) associated with electromechanical (slot number and
aperture, winding type) and mechanical machine characteristics. The paper is illustrated by an
example using a 1.25 kW induction machine associated with a natural sampling power converter. |
| Download |
| Filename: | EPE2001 - PP00371 - Friedrich.pdf |
| Filesize: | 889.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-10 by System |
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