Unbalanced active power distribution of cascaded multilevel converter-based battery energy storage systems

• Main Authors: Liang, Gaowen, Farivar, Glen G., Ceballos, Salvador, Tafti, Hossein Dehghani, Pou, Josep, Townsend, Christopher D., Konstantinou, Georgios
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Electrical and electronic engineering::Power electronics; Battery Energy Storage; Modular Multilevel Converter
• Online Access: https://hdl.handle.net/10356/156964
• Institution: Nanyang Technological University

In a battery energy storage system (BESS) based on the cascaded H-bridge (CHB) converter or modular multilevel converter (MMC), the active power distribution among the submodules (SMs) can be highly unbalanced, especially when batteries with different power ratings are used. Meanwhile, there are cer...