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Open AccessArticle

Small-Scale Modular Multilevel Converter for Multi-Terminal DC Networks Applications: System Control Validation

1
Laboratory of Electronics, Department of Physics, Faculty of Science, University of Yaoundé I, P.O. Box 812 Yaoundé, Cameroon
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Département des Technologies Industrielles (TIN), Haute école Spécialisée de Suisse Occidentale (HES-SO), University of Applied Sciences of Western Switzerland, Route de Cheseaux 1, 1401 Yverdon-les-Bains, Switzerland
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Power Electronics and Systems Consultancy, Rue de Lyon 27, CH-1201 Geneva, Switzerland
4
Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genova, Via all’Opera Pia 11A, 16145 Genova, Italy
*
Author to whom correspondence should be addressed.
Energies 2018, 11(7), 1690; https://doi.org/10.3390/en11071690
Received: 16 May 2018 / Revised: 22 June 2018 / Accepted: 22 June 2018 / Published: 28 June 2018
This paper presents the design and implementation of a digital control system for modular multilevel converters (MMC) and its use in a 5 kW small-scale prototype. To achieve higher system control reliability and multi-functionality, the proposed architecture has been built with an effective split of the control tasks between a master controller and six slave controllers, one for each of the six arms of the converter. The MMC prototype has been used for testing both converter and system-level controls in a reduced-scale laboratory set up of a Multi-Terminal DC transmission network (MTDC). The whole control has been tested to validate the proposed control strategies. The tests performed at system level allowed exploration of the advantages of using an MMC in a MTDC system. View Full-Text
Keywords: digital controller; digital signal processors (DSP); modular multilevel converters (MMC); multi-terminal DC network (MTDC) digital controller; digital signal processors (DSP); modular multilevel converters (MMC); multi-terminal DC network (MTDC)
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Talon Louokdom, E.; Gavin, S.; Siemaszko, D.; Biya-Motto, F.; Essimbi Zobo, B.; Marchesoni, M.; Carpita, M. Small-Scale Modular Multilevel Converter for Multi-Terminal DC Networks Applications: System Control Validation. Energies 2018, 11, 1690.

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