Analysis of the Fault-Tolerance Capacity of the Multilevel Active-Clamped Converter

作者：Nicolas Apruzzese Joan^*; Busquets Monge Sergio; Bordonau Josep; Alepuz Salvador; Calle Prado Alejandro

来源：IEEE Transactions on Industrial Electronics, 2013, 60(11): 4773-4783.

DOI：10.1109/TIE.2012.2222856

• Active clamped
• fault tolerance
• multilevel topologies
• power electronics

Thanks to the inherent redundancy to generate the different output voltage levels, the multilevel active-clamped (MAC) topology presents an important fault-tolerance ability which makes it interesting for several applications. This paper presents an analysis of the fault-tolerance capacity of the MAC converter. Both open-circuit and short-circuit faults are considered, and the analysis is carried out under single-device and two simultaneous device faults. Switching strategies and different hardware modifications to overcome the limitations caused by faults are proposed. Experimental tests with a four-level MAC prototype are presented to validate the analysis.

• 出版日期2013-11