Modular Multilevel Converter topologies with DC-Short circuit current limitation

By Rainer Marquardt. 8th International Conference on Power Electronics - ECCE Asia, 2011

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Isolated DC/DC Structure Based on Modular Multilevel Converter (2015, methodology): “Lately multiterminal dc grids using MMC have been proposed [27]–[29]; however, even in this configuration the MMC is still mainly used to interface a low-frequency ac source (50 or 60 Hz) with a dc line.”
A review of LCC-HVDC and VSC-HVDC technologies and applications (2016, background): “Another major setback is that a high level of electromagnetic interference occur when two-level converter is used for a high voltage DC systems [32].”
Modular Multilevel Converter With Series and Parallel Module Connectivity: Topology and Control (2015, background): “, in power line converters, with respect to both ac and dc terminals [54].”
Modular Multilevel Converters for HVDC Applications: Review on Converter Cells and Functionalities (2015, background): “critical challenge which corresponds to the HVDC application requirements is the internal and the external fault tolerance of the converter [114].”