TY - GEN
T1 - Sub-Module Voltage Control in DAB Assisted Modular Multilevel Converter for Low Voltage Applications
AU - Aguilar, Rodrigo
AU - Tarisciotti, Luca
AU - Pereda, Javier
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Modular Multilevel Converters efficiency, modularity and power quality make them perfectly suitable for high and medium voltage applications. The main drawbacks are the high capacitances required, numerous measurements system and high control complexity. These problems make the converter unsuitable for low voltage applications, mainly because of the limited space and the complexity involved. In order to solve these issues modification to the classical MMC topology has been proposed. This work presents a method to control the floating capacitor voltages when a low value of capacitance is considered, and Dual Active Bridge converters are used to interlink the MMC Sub-Modules. The proposed control only measures one capacitor of a stack, and significantly reduces the control complexity while maintaining a low voltage ripple. The control is validated through simulations and a single-phase low scale prototype.
AB - Modular Multilevel Converters efficiency, modularity and power quality make them perfectly suitable for high and medium voltage applications. The main drawbacks are the high capacitances required, numerous measurements system and high control complexity. These problems make the converter unsuitable for low voltage applications, mainly because of the limited space and the complexity involved. In order to solve these issues modification to the classical MMC topology has been proposed. This work presents a method to control the floating capacitor voltages when a low value of capacitance is considered, and Dual Active Bridge converters are used to interlink the MMC Sub-Modules. The proposed control only measures one capacitor of a stack, and significantly reduces the control complexity while maintaining a low voltage ripple. The control is validated through simulations and a single-phase low scale prototype.
KW - Dual Active Bridge
KW - Modular Multilevel Converter
KW - Proportional Resonant Controller
UR - http://www.scopus.com/inward/record.url?scp=85182946634&partnerID=8YFLogxK
U2 - 10.1109/ECCE53617.2023.10362637
DO - 10.1109/ECCE53617.2023.10362637
M3 - Conference contribution
AN - SCOPUS:85182946634
T3 - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
SP - 2848
EP - 2855
BT - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Y2 - 29 October 2023 through 2 November 2023
ER -
