B. FRANCOIS, C. SAUDEMONT, M. FADEL, "Direct Modulation of Electrical Conversions for a Multilevel Chopper", EPE'2001.

B. FRANCOIS, C. SAUDEMONT, M. FADEL, "Direct Modulation of Electrical Conversions for a Multilevel Chopper", EPE'2001. Copyright - [Précédente] [Première page] [Suivante] - Home

Article : [PAP344]

Titre : B. FRANCOIS, C. SAUDEMONT, M. FADEL, Direct Modulation of Electrical Conversions for a Multilevel Chopper, EPE'2001.

Cité dans : [DIV174]  EPE'2001, European Conference on Power Electronics and Applications, Graz, Autriche, 27-28 août 2001.
Cité dans :[DIV393]

Auteur : François B. - (1)
Auteur : Saudemont C. - (2)
Auteur : Fadel M. - (3)

Adresse : (1) Laboratoire d'Electrotechnique et d'Electronique de Puissance de Lille (L2EP)
E.C. Lille, Cité Scientifique BP 48, 59651 Villeneuve d’Ascq, France
Tel. : 3 20 33 54 59
Fax. : 3 20 33 54 54
Lien : mailto:bruno.francois@ec-lille.fr

Adresse : (2) E.S.I.E.E., Amiens, 14, quai de la Somme, BP 100, 80083 AMIENS Cedex 2, France

Adresse : (3) Laboratoire d'Electrotechnique et d'Electronique Industrielle (LEEI),
Unité Mixte de Recherche I.N.P.T.-E.N.S.E.E.I.H.T. / C.N.R.S.
B.P. 7122, 2 Rue Camichel, 31071 Toulouse Cedex 7, France

Congrés : 9th European Conference on Power Electronics and Applications
Date : du 25 au 29 août 2001
Lien : private/PP00344.pdf - 207 Ko, 10 pages

Keywords : Multilevel converters, converter control, modulation strategies, DC power supplies

Abstract :
In this paper the methodology of the Causal Ordered Graph (COG) is used for the modelling of a flying
capacitor cell chopper. The issues of this study is a best understanding of the operating of this particular
converter in order to obtain a more precise design of the control system. The obtained modelling shows
that high-voltage multi levels are obtained by combination of two different three-level functions
(conversion functions). Therefore a novel PWM strategy is deduced. It consists of separating the
modulation period for creating two fictive modulated voltages via the direct width modulation and the
position setting of both conversion functions. Therefore, the durations of electrical conversions can be
precisely calculated and directly processed by modulators. The redundancy of the different switches
configurations for the voltage half value allows to use a particular modulation technique which limits
the deviations of the half-value voltage. Switching patterns are deduced and a decoupling control of the
capacitor voltage and the supply current is designed.

Bibliographie

References : 8
[1] : Meynard T., Foch H., Dispositif électronique de conversion d’énergie électrique, patent : FR No9109582, Europe, Japon, USA, Canada No9200652
[2] : Pinon D., Fadel M., Meynard T., Commande par mode glissant d’un hacheur à deux cellules : étude de l’installation des cycles limites, Revue Internationale de Génie Electrique, vol.1, No3, 1998, pp 393-415
[3] : Pinon D., Fadel M., Meynard T., Sliding mode controls for a two-cell chopper, EPE’99, Lausanne, CD
[4] : Wilkinson R. H., Meynard T., Richardeau F., Enslin J.H.R., Dynamic control and voltage balance of multilevel converters : Large signal one-cycle response, EPE’99, Lausanne, CD
[5] : B. François, J.P. Hautier, Pulse Position and Pulse Width Modulation of Electrical Power Conversions : Application to a Three-Phase Voltage-Fed Inverter, 3 rd International Symposium on Advanced Electromechanical Motion Systems : ELECTROMOTION 1999, Vol.2, p.653-658, Patras, Greece, July 8-9,1999
[6] : H. Ralaivao, B. François, J.P. Hautier, Influence of Freedom Degrees in the Control of a Matrix Multilevel Inverter, 3 rd International Symposium on Advanced Electromechanical Motion Systems : ELECTROMOTION 1999,
[7] : H. Ralaivao, B. François, J.P. Hautier, A Strategy for Modelling and Controlling a Single Phase Multilevel Inverter in Mean Values, Progress in Simulation, Modeling, Analysis and Synthesis of Modern Electrical and Electronic Devices and Systems, p. 348-353, July 1999, World Scientific Engineering Society Press, ISBN 960-8052-08-4
[8] : B. François, J.P. Hautier, Direct modulation of electrical conversions for a multilevel NPC chopper, 5 th WSES / IEEE world muticonference on Circuits, Systems, Communications & Computers (CSCC 2001), Crete (Greece), July 8-15 2001

  [1] :  [PAP158]  -------
  [2] :  [PAP158]  -------
  [3] :  [PAP158]  -------
  [4] :  [PAP343]  R.H. WILKINSON, T.A. MEYNARD, F. RICHARDEAU, J.H.R. ENSLIN, Dynamic Control and Voltage Balance of Multilevel Converters: Large Signal One-Cycle Response, EPE'99.
  [5] :  [PAP158]  -------
  [6] :  [PAP158]  -------
  [7] :  [PAP158]  -------
  [8] :  [ART290]  B. FRANCOIS, J.P. HAUTIER, A direct modulation of electrical conversions for a multilevel NPC chopper, CSCC'2001.

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