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In this work, a method is given to compute the switching angles in a multilevel converter to produce the required fundamental voltage while at the same time cancel out specified higher order harmonics. Specifically, a complete analysis is given for a seven-level converter (three dc sources), where it is shown that for a range of the modulation index m/sub I/, the switching angles can be chosen to produce the desired fundamental V/sub 1/=m/sub I/(s4V/sub dc///spl pi/) while making the fifth and seventh harmonics identically zero.
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J. Chiasson
Boise State University
Leon M. Tolbert
University of Tennessee at Knoxville
K.J. McKenzie
Virginia Tech
IEEE Transactions on Control Systems Technology
University of Tennessee at Knoxville
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Chiasson et al. (Thu,) studied this question.
synapsesocial.com/papers/6a08e9f434cfc5f8bc5b79c2 — DOI: https://doi.org/10.1109/tcst.2003.810382