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Conditions of safely supplying of DSIM by two PWM-VSI
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| Author(s) |
N. Moubayed; F. Meibody-Tabar; B. Davat; I. Rasoanarivo |
| Abstract |
One simple and efficient way to apply a power segmentation in AC machine PWM-VSI set consists in
realising multi-star windings and supplying each one by its own three phase PWM-VSI. This leads
theoretically to use modular inverters of lower power (current or/and voltage) which allows higher
chopping frequency. With this power segmentation method, it is possible to supply one or more than
one of star windings if for any reason some of them cannot be supplied. In this paper, one treats the
example of a Double Star Induction Machine (DSIM) supplied by two PWM-VSI. The model of the
machine highlights the eventuality of appearance of high amplitude current ripples if there is a strong
magnetic coupling between the star windings. The conditions of safely supplying of DSIM are given
and are validated by simulation and experimental results. One presents, finally, the conception of
multi-star windings with weak magnetic coupling in AC machines. |
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| Filename: | EPE1999 - PP00687 - Moubayed.pdf |
| Filesize: | 177.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-30 by System |
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