TY - GEN
T1 - A new three-level switched-capacitor submodule for modular multilevel converters
AU - Elserougi, Ahmed
AU - Ahmed, Shehab
AU - Massoud, Ahmed
N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27
PY - 2016/5/19
Y1 - 2016/5/19
N2 - Conventionally, only one out of the two capacitors in a three-level submodule is involved in the arm current path to generate the first non-zero voltage level (E) in modular multilevel converters (MMCs). While two capacitors are connected in series to obtain the second non-zero voltage level (2E). In this paper and in order to generate the first non-zero voltage level (E); parallel-connection of the two capacitors is proposed which in turn forces the capacitors voltages to be equal, as a result the parallel-connection supports employing a single voltage sensor per the proposed module instead of using two voltage sensors which reduces the hardware and software complexity of the control system. A new switched capacitor submodule (SCSM) is proposed to enable this feature. A detailed illustration of the operational concept of the proposed architecture is presented in this work. The simulation results for an MMC with the proposed SCSM is presented to validate the proposed concept.
AB - Conventionally, only one out of the two capacitors in a three-level submodule is involved in the arm current path to generate the first non-zero voltage level (E) in modular multilevel converters (MMCs). While two capacitors are connected in series to obtain the second non-zero voltage level (2E). In this paper and in order to generate the first non-zero voltage level (E); parallel-connection of the two capacitors is proposed which in turn forces the capacitors voltages to be equal, as a result the parallel-connection supports employing a single voltage sensor per the proposed module instead of using two voltage sensors which reduces the hardware and software complexity of the control system. A new switched capacitor submodule (SCSM) is proposed to enable this feature. A detailed illustration of the operational concept of the proposed architecture is presented in this work. The simulation results for an MMC with the proposed SCSM is presented to validate the proposed concept.
KW - Modular Multilevel Converter
KW - Parallel-connection of capacitors
KW - Reduced number of sensors
KW - Switched Capacitor Submodule
UR - http://ieeexplore.ieee.org/document/7474757/
UR - http://www.scopus.com/inward/record.url?scp=84974559520&partnerID=8YFLogxK
U2 - 10.1109/ICIT.2016.7474757
DO - 10.1109/ICIT.2016.7474757
M3 - Conference contribution
AN - SCOPUS:84974559520
SN - 9781467380751
T3 - Proceedings of the IEEE International Conference on Industrial Technology
SP - 234
EP - 239
BT - Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Conference on Industrial Technology, ICIT 2016
Y2 - 14 March 2016 through 17 March 2016
ER -