Energy-balancing Control Strategy for Modular Multilevel Converters Under Submodule Fault Conditions

• Published in: IEEE transactions on power electronics Vol. 29; no. 9; pp. 5021 - 5030
• Main Authors: Hu, Pengfei, Jiang, Daozhuo, Zhou, Yuebin, Liang, Yiqiao, Guo, Jie, Lin, Zhiyong
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.09.2014; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Capacitors; Circuit properties; Control systems; Converters; Convertors; Design engineering; Electric, optical and optoelectronic circuits; Electrical engineering. Electrical power engineering; Electrical equipment; Electrical machines; Electronic circuits; Electronics; Energy-balancing control strategy; Equations; Exact sciences and technology; Fault diagnosis; Faults; Inductance; Mathematical model; Mathematical models; Metal matrix composites; Modular; modular multilevel converters (MMCs); Multilevel; Power electronics, power supplies; prototype; Prototypes; redundant submodules (SMs); Regulation and control; Signal convertors; Strategy; submodule (SM) fault; Switches; Topology; Voltage control; Power converter; Balancing; Prototype; Control system; redundant submodules (SMs); Power electronics; Switching convertors; Topology; Experimental study; submodule (SM) fault; Fault tolerance; High power; Time domain method; High voltage; Energy-balancing control strategy; System simulation; modular multilevel converters (MMCs); Software; Control method; Mathematical model; Multilevel system; Fault tolerant system; Message transmission

The modular multilevel converter (MMC) is a newly introduced switch-mode converter topology with the potential for high-voltage and high-power applications. This paper focuses on the design and control methods for fault-tolerant operation using redundant submodules (SMs), which is one of the most im...