RT Journal Article
T1 Interleaved Operation of Three-Level Neutral Point Clamped Converter Legs and Reduction of Circulating Currents under SHE-PWM
A1 Konstantinou, Georgios
A1 Pou, Josep
A1 Capella, Gabriel J.
A1 Song, Kejian
A1 Ceballos, Salvador
A1 Agelidis, Vassilios G.
AB Interleaving of voltage-source converter (VSC) legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. However, the interleaved operation results in circulating currents between each phase converter legs as well as a zero-sequence circulating current (ZSCC), which become quite prominent when the converters operate with low switching frequencies. This paper demonstrates the interleaved operation of three-level converters under selective harmonic elimination pulsewidth modulation (SHE-PWM). A controller for the circulating current within the legs of each phase is also proposed. The controller is used in combination with optimally selected SHE-PWM patterns to generate the maximum number of voltage levels and minimize the peak value of the circulating current. Simulation and experimental results show the interleaved operation and the effect of SHE-PWM pattern selection in the overall system.
SN 0278-0046
YR 2016
FD 2016-06
LA eng
NO Konstantinou , G , Pou , J , Capella , G J , Song , K , Ceballos , S & Agelidis , V G 2016 , ' Interleaved Operation of Three-Level Neutral Point Clamped Converter Legs and Reduction of Circulating Currents under SHE-PWM ' , IEEE Transactions on Industrial Electronics , vol. 63 , no. 6 , 7393546 , pp. 3323-3332 . https://doi.org/10.1109/TIE.2016.2521729
NO Publisher Copyright: © 2016 IEEE.
DS TECNALIA Publications
RD 3 jul 2024