Title :
Three-dimensional space-vector modulation algorithm for four-leg multilevel converters using abc coordinates
Author :
Franquelo, Leopoldo Garcia ; Prats, Ma Ángeles Martín ; Portillo, Ramón C. ; Galvan, Jose Ignacio León ; Perales, Manuel A. ; Carrasco, Juan M. ; Díez, Eduardo Galván ; Jiménez, Jose Luis Mora
Author_Institution :
Dept. of Electron. Eng., Univ. of Seville, Spain
fDate :
4/1/2006 12:00:00 AM
Abstract :
In this paper, a novel three-dimensional (3-D) space-vector algorithm for four-leg multilevel converters is presented. It can be applied to active power filters or neutral-current compensator applications for mitigating harmonics and zero-sequence components using abc coordinates (referred from now on this paper as natural coordinates). This technique greatly simplifies the selection of the 3-D region where a given voltage vector is supposed to be found. Compared to a three-level modulation algorithm for three-leg multilevel converters, this algorithm does not increase its complexity and the calculations of the active vectors with the corresponding switching time that generate the reference voltage vector. In addition, the low-computational cost of the proposed algorithm is always the same and it is independent of the number of levels of the converter.
Keywords :
cost reduction; power conversion harmonics; power harmonic filters; switching convertors; active power filter; cost reduction; four-leg multilevel converters; mitigating harmonics; multilevel switching-vectors; neutral-current compensator; reference voltage vector; space-vector modulation algorithm; zero-sequence component; Active filters; Circuit topology; Costs; Electromagnetic interference; Harmonic distortion; Power harmonic filters; Power system harmonics; Support vector machines; Switching converters; Voltage; Multilevel converters; natural coordinates; switching-vectors sequence; three-dimensional space-vector modulation (3-D SVM);
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2006.870884