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Three-dimensional space vector modulation in abc coordinates for four-leg voltage source converters

 

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Opened Access Three-dimensional space vector modulation in abc coordinates for four-leg voltage source converters
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Author: Perales Esteve, Manuel Ángel
Martín Prats, María de los Ángeles
Portillo Guisado, Ramón Carlos
Mora Jiménez, José Luis
León, José I.
García Franquelo, Leopoldo
Department: Universidad de Sevilla. Departamento de Ingeniería Electrónica
Date: 2003
Published in: IEEE Power Electronics Letters, 1 (4), 104-109.
Document type: Article
Abstract: Four-leg inverters have been selected as one of the preferred power converter topologies for applications that require a precise control of neutral current, like active filters. The main advantage of this topology lies in an extended range for the zero sequence voltages and currents. However, the addition of a fourth leg extends the space vectors from two to three dimensions, making the selection of the modulation vectors more complex. Most of the algorithms that deal with this problem require an /spl alpha//spl beta//spl gamma/ transformation. This paper presents a new space vector modulation algorithm using abc coordinates (the phase voltages) avoiding the /spl alpha//spl beta//spl gamma/ transformation. Thanks to the use of abc coordinates, the algorithm is much simpler and more intuitive than in /spl alpha//spl beta//spl gamma/ representation, drastically reducing the complexity of modulation algorithm and the computational load associated to it.
Cite: Perales Esteve, M.Á., Martín Prats, M.d.l.Á., Portillo Guisado, R.C., Mora Jiménez, J.L., León, J.I. y García Franquelo, L. (2003). Three-dimensional space vector modulation in abc coordinates for four-leg voltage source converters. IEEE Power Electronics Letters, 1 (4), 104-109.
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Format: PDF

URI: https://hdl.handle.net/11441/85558

DOI: 10.1109/LPEL.2004.825553

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