Battery fault tolerance of modular multilevel converter-based battery energy storage systems with redundant submodules

• Main Authors: Liang, Gaowen, Farivar, Glen G., Yadav, Gorla Naga Brahmendra, Rodriguez, Ezequiel, Pou, Josep
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering; Modular Multilevel Converter; Fault Tolerance
• Online Access: https://hdl.handle.net/10356/153359
• Institution: Nanyang Technological University

In a modular multilevel converter (MMC) based battery energy storage system (BESS), a fault tolerant design ensures uninterrupted operation of the MMC when a given number of submodules (SMs) have faulty batteries or no batteries. This paper quantitatively investigates the fault tolerance improvement...