RT Conference Proceedings T1 Estimation methods and sensor reduction in modular multilevel converters: A review A1 Konstantinou, Georgios A1 Wickramasinghe, Harith R. A1 Townsend, Christopher D. A1 Ceballos, Salvador A1 Pou, Josep AB The circuit configuration of the modular multilevel converter (MMC) requires a large number of current and voltage measurements as well as communications within the converter arms and between the arm controllers and the main control circuit. In order to reduce circuit complexity and hardware requirements with their associated cost, while adding an additional level of reliability to the operation of the MMC, a number of methods have been proposed for the estimation / observation of the various internal electrical variables or parameters of the MMC. These include estimations for sub-module capacitor voltages, dc-link voltages, arm currents or total arm energy. Such methods aim to eliminate or reduce the sensors in the circuit, reduce communication requirements or both. This paper provides an overview and classification of the different estimation/observation methods for MMCs currently proposed in the literature. PB Institute of Electrical and Electronics Engineers Inc. SN 9781538660287 YR 2018 FD 2018-07-02 LK https://hdl.handle.net/11556/2552 UL https://hdl.handle.net/11556/2552 LA eng NO Konstantinou , G , Wickramasinghe , H R , Townsend , C D , Ceballos , S & Pou , J 2018 , Estimation methods and sensor reduction in modular multilevel converters : A review . in 2018 8th International Conference on Power and Energy Systems, ICPES 2018 . , 8626987 , 2018 8th International Conference on Power and Energy Systems, ICPES 2018 , Institute of Electrical and Electronics Engineers Inc. , pp. 23-28 , 8th International Conference on Power and Energy Systems, ICPES 2018 , Colombo , Sri Lanka , 21/12/18 . https://doi.org/10.1109/ICPESYS.2018.8626987 NO conference NO Publisher Copyright: © 2018 IEEE. NO ACKNOWLEDGMENT This research was supported under Australian Research Council’s Discovery Early Career Research Award (DECRA - DE170100370). DS TECNALIA Publications RD 28 jul 2024