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Electronics 2019, 8(1), 22;

Model-Based Latency Compensation for Network Controlled Modular Multilevel Converters

Department of Electronics, Universidad de Alcalá, Escuela Politécnica, 28805 Alcalá de Henares, Spain
Author to whom correspondence should be addressed.
Received: 4 December 2018 / Revised: 20 December 2018 / Accepted: 21 December 2018 / Published: 24 December 2018
(This article belongs to the Special Issue Advanced Power Conversion Technologies)
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The use of an internal digital communication network enhances the scalability, implementation and maintenance of Modular Multilevel Converters (MMC). However, it also introduces delays that limit the sampling frequency and the controller dynamic performance. In this paper, we propose a model-based predictor to compensate for the loop delay and overcome these limitations. Two benefits of this approach are possible: either designers can increase the sampling rate and control performance or employ a slower communication protocol/technology. In this paper, we present the mathematical description of the model-based predictor, assess the parameter sensitivity, and show matching simulation and experimental results that validate it. As constraints introduced by the use of digital communications are overcome, the results achieved encourage engineers to adopt a network into the design of Modular Multilevel Converters. View Full-Text
Keywords: model-based prediction; modular multilevel converter; networked control system model-based prediction; modular multilevel converter; networked control system

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Corrêa, T.P.; Rodríguez, F.J.; Bueno, E.J. Model-Based Latency Compensation for Network Controlled Modular Multilevel Converters. Electronics 2019, 8, 22.

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