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IMPLEMENTATION OF OPTIMISED MODULATION IN AN INDUSTRIAL SPEED DRIVE FOR ASYNCHRONOUS MACHINES
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Author(s) |
Eric Sournac; Jean Claude Hapiot; Pascal Maussion; Christophe Sabourin |
Abstract |
This study concerns the speed variations of asynchronous machines using pulse-width modulated inverters. The various constraints like switching losses, the good quality wished for the machine current and the D.C. link current have conducted to the choice of pulse-width modulation techniques by harmonic spectrum optimisation. In order to control the inverter switches, the waveforms of the adopted voltage are determined. The choice of the control module structure is done by considering two actual techniques. The first one consists in memorising the complet pattern, whereas in the second technique only switching angles are memorised. A quantitative study has allowed to opt for the first technique. At last we present the experimental set-up and the corresponding obtained results. |
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Filename: | Unnamed file |
Filesize: | 752.7 KB |
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Type |
Members Only |
Date |
Last modified 2021-02-10 by System |
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