Simulation and Innovative Digital Modeling Approach for Improving the Dynamic Performances of HVDC MMC Systems: Case of an AVM-MMC Migration

International Journal of Electronics and Communication Engineering

© 2024 by SSRG - IJECE Journal

Volume 11 Issue 10

Year of Publication : 2024

Authors : AbdeL–Hamid Mahamat Ali, Luc Vivien Assiene Mouodo, Nna Nna Theodore Patrice, Jean Gaston TAMBA, Petros Axaopoulos

10.14445/23488549/IJECE-V11I10P106

How to Cite?

AbdeL–Hamid Mahamat Ali, Luc Vivien Assiene Mouodo, Nna Nna Theodore Patrice, Jean Gaston TAMBA, Petros Axaopoulos, "Simulation and Innovative Digital Modeling Approach for Improving the Dynamic Performances of HVDC MMC Systems: Case of an AVM-MMC Migration," SSRG International Journal of Electronics and Communication Engineering, vol. 11,  no. 10, pp. 77-90, 2024. Crossref, https://doi.org/10.14445/23488549/IJECE-V11I10P106

Abstract:

This article proposes innovative digital modeling by improving the control, especially the complexity of HVDC-MMC systems, by considerably limiting the high calculation load for sub-modules grouping power electronics switches during high voltage transit. In this approach, the methodology consists of directly programming the average response of the converters and their components using controlled switching sources of an average function with an addition on the harmonics and the losses of the converter, all from the current literature in and associated with the Matlab software Simulink 2022.b. secondly, a cross comparison is carried out between a real MMC architecture and a reconfigured AVM-MMC model by highlighting the value of the THD at the output. The results obtained with the AVM-MMC architecture are obtained in Simulation on a Microsoft Windows 10 operating system with an Intel Corei7-6700HQ processor at 2.60 GHz and 32 GB of RAM, with Matlab Simulink 2022.b. a simulation window of 10μs and a system operating time of 2s. Repetitive tests are carried out for 5 to 200 sub-modules, with execution time recording. We note that from 5 modules, our AVM-MMC architecture offers a direct increase of 4.6% compared to the real MMC model. This work, therefore, contributes to improving the modeling and simulation approaches of HVDC-MMC systems and the electromagnetic accounting phenomena of the power converters of their systems.

Keywords:

HVDC system, AVM-MMC architecture, Calculation time, Comparative analysis, THD.

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