TY - GEN
T1 - Comparison of bipolar sub-modules for the alternate arm converter
AU - Wickramasinghe, Harith R.
AU - Konstantinou, Georgios
AU - Pou, Josep
AU - Picas, Ricard
AU - Ceballos, Salvador
AU - Agelidis, Vassilios G.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/12/21
Y1 - 2016/12/21
N2 - Research on dc-fault tolerant multilevel converters has gained noticeable attention over recent years. The alternate arm converter (AAC) is one of such emerging multilevel converter topologies, and a hybrid topology of the two-level converter and the modular multilevel converter (MMC). Bipolar sub-modules (SMs) that can produce both positive and negative voltages are the building blocks of the AAC. This paper analyses the operation of an AAC with the full-bridge SM (FB-SM) and the cross-connected SM (CC-SM). The conduction and switching losses of the two SM configurations are evaluated and compared, in order to identify the suitability of CC-SM for AACs and its performance compared to the FB-SM. The CC-SM with identical semiconductor devices has reduced losses compared to the CC-SM with higher rated devices in the cross-connected path. It is concluded that the CC-SM does not offer advantages in the losses, construction, and application to the AAC, compared to FB-SM.
AB - Research on dc-fault tolerant multilevel converters has gained noticeable attention over recent years. The alternate arm converter (AAC) is one of such emerging multilevel converter topologies, and a hybrid topology of the two-level converter and the modular multilevel converter (MMC). Bipolar sub-modules (SMs) that can produce both positive and negative voltages are the building blocks of the AAC. This paper analyses the operation of an AAC with the full-bridge SM (FB-SM) and the cross-connected SM (CC-SM). The conduction and switching losses of the two SM configurations are evaluated and compared, in order to identify the suitability of CC-SM for AACs and its performance compared to the FB-SM. The CC-SM with identical semiconductor devices has reduced losses compared to the CC-SM with higher rated devices in the cross-connected path. It is concluded that the CC-SM does not offer advantages in the losses, construction, and application to the AAC, compared to FB-SM.
KW - Alternate arm converter
KW - Cross-connected sub-modules
KW - Identical semiconductor devices
KW - Losses
UR - http://www.scopus.com/inward/record.url?scp=85010031052&partnerID=8YFLogxK
U2 - 10.1109/IECON.2016.7793031
DO - 10.1109/IECON.2016.7793031
M3 - Conference contribution
AN - SCOPUS:85010031052
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 6482
EP - 6487
BT - Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society
PB - IEEE Computer Society
T2 - 42nd Conference of the Industrial Electronics Society, IECON 2016
Y2 - 24 October 2016 through 27 October 2016
ER -