Improved Modular Multilevel Converter topology for low voltage variable speed drives

Tarisciotti, Luca; Costabeber, Alessandro; Diaz, Matias; Cardenas, Roberto; IEEE

Abstract

Modular Multilevel Converters (MMC) are becoming increasingly popular for HVDC applications and in medium voltage grids and drives. On the contrary, in high-speed low-voltage drives MMCs are typically not considered a good option due to their relatively low power density. In this paper, a new topology is proposed, enhancing the MMC by coupling upper and lower arm sub-modules via Dual Active Bridge (DAB) converters, leading to a sensible reduction of the sub-module capacitance whilst keeping low control complexity. The resulting topology is applied to a high-speed low voltage permanent magnet drive, analyzing the drive startup and its practical operation. Finally, the theoretical claims are validated with simulation results.

Más información

Título según WOS: ID WOS:000560681600127 Not found in local WOS DB
Título de la Revista: 2020 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT)
Editorial: IEEE
Fecha de publicación: 2020
Página de inicio: 837
Página final: 842
DOI:

10.1109/ICIT45562.2020.9067144

Notas: ISI