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arXiv · 2611.07734

Data-driven current control of modular multilevel converter-based HVDC transmission system

Victor D. Reyes Dreke·Rahul Rane·Aleksandra Lekić
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Abstract

Model-based design (MBD) is a mature framework for designing the current controllers of modular multilevel converters (MMCs) in high-voltage direct current (HVDC) transmission systems. In MBD, linear state-space models are preferred for their good trade-off between accurate dynamics prediction and simplicity. However, first-principle derivations often neglect relevant MMC dynamics, which can hinder controller performance. Data-driven (DD) methods can deliver less biased models that capture parameter uncertainties, control-loop interactions, and grid dynamics, yet they remain under-exploited for controlling MMC currents. This paper studies DD current control method based on integral Subspace Predictive Control (iSPC), synthesized directly from input--output data measured in a high fidelity real-time digital simulator (RTDS), and proposes an initial guideline outlining the main steps for its systematic application to MMC current control. The proposed iSPC is compared against state-of-the-art DD solution, and the findings are validated through simulation studies in MATLAB/Simulink.

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Victor D. Reyes Dreke, Rahul Rane, Aleksandra Lekić. 2026-11-05. Data-driven current control of modular multilevel converter-based HVDC transmission system. https://arxiv.org/abs/2611.07734

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