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A general modelling and control algorithm of a three-phase multilevel diode clamped inverter by means of a direct space vector control

Published online by Cambridge University Press:  27 April 2005

O. Bouhali*
Affiliation:
Laboratoire de Commande des Processus de l'ENP (LCP), École Nationale Polytechnique d'Alger, BP 182, 10 avenue Hassen Badi, 16200 el Harrach, Algeria Laboratoire d'Électrotechnique et d'Électronique de puissance de Lille (L2EP), École Centrale de Lille, Cité Scientifique, BP 48, 59651 Villeneuve d'Ascq Cedex, France Laboratoire d'étude et de Modélisation en Électrotechnique (LAMEL), Université de Jijel, BP 98, Ouled Aissa, Jijel, Algeria
B. Francois
Affiliation:
Laboratoire d'Électrotechnique et d'Électronique de puissance de Lille (L2EP), École Centrale de Lille, Cité Scientifique, BP 48, 59651 Villeneuve d'Ascq Cedex, France
E. M. Berkouk
Affiliation:
Laboratoire de Commande des Processus de l'ENP (LCP), École Nationale Polytechnique d'Alger, BP 182, 10 avenue Hassen Badi, 16200 el Harrach, Algeria
C. Saudemont
Affiliation:
Laboratoire d'Électrotechnique et d'Électronique de puissance de Lille (L2EP), HEI, 13 rue de Toul, 59046 Lille Cedex, France
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Abstract

This paper presents a simple and general direct modulation strategy that enables to copy directly modulated waveforms onto output voltages of a multilevel three-phase Diode Clamped Inverter (DCI). A general modelling of this converter is presented. A space vector scheme is developed without using Park transforms. Based on this algorithm, the location of the reference voltage vector is determined and the voltage vectors for the modulation are deduced. Simultaneously, their durations are calculated. The proposed algorithm is general and can be directly applied to a (n+1) levels inverter independently on its topology (Diode Clamped Inverter, Neutral Point Clamped, Flying Capacitor Inverter...). To verify this algorithm, both control algorithms of a 5-level DCI and a 11-level DCI are considered and simulation results are given.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 2005

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References

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