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Fault Tolerant Operation of the Modular High Frequency Converter
A. Mayer,M. Schulz,C. Rolff,R. Marquardt 전력전자학회 2015 ICPE(ISPE)논문집 Vol.2015 No.6
Fault tolerance of converters and drive systems is becoming a key issue for many future applications. The Modular High Frequency Converter (MHF) is a new inverter topology, especially designed for applications, where high reliability and ultra-light weight are important. Besides superior dynamic behavior, continuous operation after defects is one of the main advantages of the Modular High Frequency Converter. Considering fault tolerant operation, different failure scenarios and possible countermeasures are analyzed in this paper. A new control concept, supporting the capability of fault tolerant operation is introduced. Simulation and operating results of the first laboratory prototype prove the fault ride through capability of the presented topology.