1. Performance of the modular multilevel converter with redundant submodules;Ahmed,2015
2. Multilevel converters: fundamental circuits and systems;Akagi;Proc. IEEE,2017
3. Classification, terminology, and application of the modular multilevel cascade converter (MMCC);Akagi,2010
4. Design for reliability in renewable energy systems;Blaabjerg,2017
5. U. Scheuermann, M. Junghaenel, Limitation of power module lifetime derived from active power cycling tests, in: CIPS 2018.