Prof. Kyeon Hur and his current Ph.D. candidate Jaesik Kang’s paper, titled “On Exploiting Active Redundancy of Modular Multilevel Converter to Balance Reliability and Operational Flexibility” has been accepted for publication in IEEE trans. on power Electronics (IF: 7.151, Top 5%  in EE category of JCR). This strategy provides a systematic framework for balancing the trade-off between two conventional methods for using the active redundancy and thus achieves operational flexibility. Prof. Mantooth at University of Arkansas (IEEE PELS President), researcher from KEPRI and researchers from Hyosung Heavy Industries joined in the research.