참고문헌
- J. Kang, "A study on the enhancement of operational flexibility and reliability of modular multilevel converter HVDC using active redundancy sub-module," Ph. D dissertation, College of Electrical and Electronic Eng., Yonsei Univ., Korea, 2018.
- J. Kang and et. al., "Design procedure of MMC HVDC system: Comprehensive consideration of internal and external dynamics," IEEE Access, Vol. 8, pp.157437-157450, Aug. 2020. https://doi.org/10.1109/ACCESS.2020.3018597