TY - GEN
T1 - Grid Forming Operation for a High Step Ratio Modular Multilevel DC-DC Converter
AU - Cerda, Carlos
AU - Rojas, Felix
AU - Pineda, Cristian
AU - Pereda, Javier
AU - Diaz, Matias
AU - Gatica, Gustavo
N1 - Funding Information:
This research has been partially funded by the Chilean National yAgenc for hResearc and elopmentvDe (ANID) through the sproject ANID/FONDECYT/11190806 and 5A 9.
Publisher Copyright:
© 2020 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/9/28
Y1 - 2020/9/28
N2 - Recently, Modular Multilevel Converters (MMCs) have become an attractive solution for MV applications. MMCs can handle high voltage levels by interconnecting either full-or half-bridge converters in series, achieving high performance, modularity and excellent power quality. Although most of the reported MMC converters are proposed to interface AC voltages at least in one port, few topologies have been reported for direct DC-DC conversion, mainly intended for interconnection of two DC grids, focusing the most of the reports on the modulation and internal balancing of the converter. In this paper, the output voltage of a high-step ratio DC-DC MMC is controlled to operate as a grid forming converter. Simulation results show excellent performance of the converter, achieving internal voltage balancing and zero current switching operation(ZCS) under steady-state and transient response.
AB - Recently, Modular Multilevel Converters (MMCs) have become an attractive solution for MV applications. MMCs can handle high voltage levels by interconnecting either full-or half-bridge converters in series, achieving high performance, modularity and excellent power quality. Although most of the reported MMC converters are proposed to interface AC voltages at least in one port, few topologies have been reported for direct DC-DC conversion, mainly intended for interconnection of two DC grids, focusing the most of the reports on the modulation and internal balancing of the converter. In this paper, the output voltage of a high-step ratio DC-DC MMC is controlled to operate as a grid forming converter. Simulation results show excellent performance of the converter, achieving internal voltage balancing and zero current switching operation(ZCS) under steady-state and transient response.
KW - Control design
KW - DC-DC MMC
UR - http://www.scopus.com/inward/record.url?scp=85097528164&partnerID=8YFLogxK
U2 - 10.1109/PEDG48541.2020.9244339
DO - 10.1109/PEDG48541.2020.9244339
M3 - Conference contribution
AN - SCOPUS:85097528164
T3 - 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
SP - 494
EP - 498
BT - 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
Y2 - 28 September 2020 through 1 October 2020
ER -