Sequential model predictive control for five‑level MMC‑based multi‑terminal HVDC systems

Ali Bouzidi; Said Barkat; Ali Akka; Mohamed Lokmane Bendaas

Sequential model predictive control for five‑level MMC‑based multi‑terminal HVDC systems

Ali Bouzidi

Said Barkat

Ali Akka

Mohamed Lokmane Bendaas

Vol. 23, No. 10, pp. 1507-1516, Oct. 2023

10.1007/s43236-023-00651-x

High-voltage direct current

Modular multi-level converter

Sequential model predictive control

Capacitor voltage balancing

Circulating current minimization

Abstract

In this paper, a Sequential Model Predictive Control (SMPC) is proposed for controlling a Modular Multilevel Converter (MMC)-based Multi-Terminal high Voltage Direct Current (MTDC) grid. Based on an adequate predictive model of the grid side of each MMC unit, cost functions are designed and optimized to generate the appropriate switching states of each MMC. In addition to its ability to guarantee accurate power-sharing between deferent controlled MMCs units, the conspicuous features of the propose MPC strategy are the sub-module capacitor voltages balancing and MMC circulating currents minimization. To validate the performance and the effectiveness of the proposed control approach in terms of its ability to achieve the desired performance under various operational conditions, comprehensive simulation studies are conducted on a four-terminal MMC-MTDC system.

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Cite this article

[IEEE Style]

A. Bouzidi, S. Barkat, A. Akka, M. L. Bendaas, "Sequential model predictive control for five‑level MMC‑based multi‑terminal HVDC systems," Journal of Power Electronics, vol. 23, no. 10, pp. 1507-1516, 2023. DOI: 10.1007/s43236-023-00651-x.

[ACM Style]

Ali Bouzidi, Said Barkat, Ali Akka, and Mohamed Lokmane Bendaas. 2023. Sequential model predictive control for five‑level MMC‑based multi‑terminal HVDC systems. Journal of Power Electronics, 23, 10, (2023), 1507-1516. DOI: 10.1007/s43236-023-00651-x.