Control Strategy For An Ac/Dc Asymmetric Alternate Arm Converter
Neira, F.
UNIVERSITY of CONCEPCION
Pena, R.
UNIVERSITY of CONCEPCION
Blasco-Gimenez, R.
UNIVERSITAT POLITECNICA de Valencia
Riedemann, J.
CATÓLICA de VALPARAÍSO
Date Issued
2018-9
Type
Artículo de conferencia
Journal
IEEE Xplore
The Modular Multilevel Converter (MMC) is nowadays an attractive technology. However, due to the power pulsation in each MMC single phase unit it requires big DC capacitors. This work presents a control strategy for a 3-phase AC/DC Asymmetric Alternate Arm Converter with MMC arms in the lower side and only standard ON-OFF valves in the upper side. The topology operation principle is explained, a control strategy to demonstrate its operation is developed and a preliminary evaluation of the topology losses is carried out. Results confirm good operation of the suggested topology. Moreover, a sort of interleaved operation is proposed in order to reduce the DC link ripple current resulting from the converter control strategy. © 2018 EPE Association.
FONDAP/15110019
1151325