TY - GEN
T1 - A cell capacitor energy balancing control of Modular Multilevel Converter considering the unbalanced AC grid conditions
AU - Jung, Jae Jung
AU - Cui, Shenghui
AU - Kim, Sungmin
AU - Sul, Seung Ki
PY - 2014
Y1 - 2014
N2 - This paper presents a control scheme for the regulation of cell capacitor energy balancing of a Modular Multilevel Converter (MMC) for HVDC transmission systems, considering the unbalanced AC grid conditions. It is essential that the MMC balancing control should be valid not only for the balanced normal operations but also for the asymmetrical grid fault conditions. This paper proposes the control scheme that has the ability of seamless mode change between balanced and unbalanced grid condition. Applying the proposed method, the capacitor energy balancing operation is successfully realized with improved dynamic responses. Finally, the simulation results verify the validity of the proposed method.
AB - This paper presents a control scheme for the regulation of cell capacitor energy balancing of a Modular Multilevel Converter (MMC) for HVDC transmission systems, considering the unbalanced AC grid conditions. It is essential that the MMC balancing control should be valid not only for the balanced normal operations but also for the asymmetrical grid fault conditions. This paper proposes the control scheme that has the ability of seamless mode change between balanced and unbalanced grid condition. Applying the proposed method, the capacitor energy balancing operation is successfully realized with improved dynamic responses. Finally, the simulation results verify the validity of the proposed method.
KW - capacitor energy balancing
KW - HVDC transmission system
KW - modular multilevel converter (MMC)
KW - single-line-to-ground fault
KW - unbalanced grid fault
UR - http://www.scopus.com/inward/record.url?scp=84906658510&partnerID=8YFLogxK
U2 - 10.1109/IPEC.2014.6869749
DO - 10.1109/IPEC.2014.6869749
M3 - Conference contribution
AN - SCOPUS:84906658510
SN - 9781479927050
T3 - 2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
SP - 1268
EP - 1275
BT - 2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
PB - IEEE Computer Society
T2 - 7th International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
Y2 - 18 May 2014 through 21 May 2014
ER -