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Generalized switching function model of modular multilevel converter

Adam, G.P. and Li, P. and Gowaid, I.A. and Williams, B.W. (2015) Generalized switching function model of modular multilevel converter. In: 2015 IEEE International Conference on Industrial Technology (ICIT). IEEE, Piscataway, NJ., 2702 - 2707. ISBN 9781479978007

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Abstract

This paper presents a generalized switching function model of the modular multilevel converter (MMC) that can be used instead of MMC electromagnetic transient simulation model for full-scale simulations of high-voltage dc (HVDC) and flexible ac transmission systems (FACTS). The proposed method is computationally more efficient and numerically stable than its electromagnetic transient simulation counterpart, and it is applicable for wide range of studies, including ac and dc network faults. The proposed switching function model is packaged in a graphical form to suit various simulation platforms such as Simulink and PSCAD. The validity of the presented model is confirmed using simulation and its scalability has been demonstrated on MMC with 301 cells per arm, considering power reversal during normal operation and dc short circuit fault.