TY - GEN
T1 - Harmonic elimination in multilevel converters
AU - Chiasson, John
AU - Tolbert, Leon
AU - McKenzie, Keith
AU - Du, Zhong
PY - 2003
Y1 - 2003
N2 - A method is presented to compute the switching angles in a multilevel converter so as to produce the required fundamental voltage while at the same time not generate higher order harmonics. Using a fundamental switching scheme, previous work has shown that this is possible only for specific ranges of the modulation index. Here it is shown for a three DC source multilevel inverter that, by modifying the switching scheme, one can extend the range of modulation indices for which the switching angles exist to achieve the fundamental while eliminating the 5 th and 7 th harmonics. In contrast to numerical techniques, the approach here produces all possible solutions.
AB - A method is presented to compute the switching angles in a multilevel converter so as to produce the required fundamental voltage while at the same time not generate higher order harmonics. Using a fundamental switching scheme, previous work has shown that this is possible only for specific ranges of the modulation index. Here it is shown for a three DC source multilevel inverter that, by modifying the switching scheme, one can extend the range of modulation indices for which the switching angles exist to achieve the fundamental while eliminating the 5 th and 7 th harmonics. In contrast to numerical techniques, the approach here produces all possible solutions.
KW - Harmonic Elimination
KW - Multilevel Converters
KW - Resultants
KW - Symmetric Polynomials
UR - http://www.scopus.com/inward/record.url?scp=1542621303&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:1542621303
SN - 0889863350
SN - 9780889863354
T3 - Proceedings of the IASTED Multi-Conference- Power and Energy Systems
SP - 284
EP - 289
BT - Proceedings of the Seventh IASTED International Multi-Conference - Power and Energy Systems
A2 - Smedley, K.M.
T2 - Proceedings of the Seventh IASTED International Multi-Conference - Power and Energy Systems
Y2 - 24 February 2003 through 26 February 2003
ER -