State-feedback control of grid and circulating current in modular multilevel converters

Antoneta Iuliana Bratcu; Remus Teodorescu

doi:10.1016/j.ifacol.2020.12.1279

State-feedback control of grid and circulating current in modular multilevel converters

Antoneta Iuliana Bratcu^*, Remus Teodorescu

^*Corresponding author for this work

Research output: Contribution to journal › Conference article in Journal › Research › peer-review

5 Citations (Scopus)

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Abstract

This paper proposes a state-feedback control of both grid and circulating current in modular multilevel converters (MMCs), which ensures that the input-coupled dynamics of the two currents to be controlled within a multi-input-multi-output (MIMO) approach. A systematic design procedure is detailed and the strategy is validated on a comprehensive MATLAB^®/Simulink^® model of a three-phase MMC. Simulation results show that, compared with the conventional control featuring two separate control loops, the proposed control shows better performance under unbalanced grid conditions.

Original language	English
Book series	IFAC-PapersOnLine
Volume	53
Issue number	2
Pages (from-to)	12396-12401
Number of pages	6
ISSN	2405-8963
DOIs	https://doi.org/10.1016/j.ifacol.2020.12.1279
Publication status	Published - 2020
Event	21st IFAC World Congress 2020 - Berlin, Germany Duration: 12 Jul 2020 → 17 Jul 2020

Conference

Conference	21st IFAC World Congress 2020
Country/Territory	Germany
City	Berlin
Period	12/07/2020 → 17/07/2020

Bibliographical note

Publisher Copyright:
Copyright © 2020 The Authors. This is an open access article under the CC BY-NC-ND license

Keywords

Application of power electronics
Control system design
Disturbance rejection
Filtering
Linear multivariable systems
Smoothing

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10.1016/j.ifacol.2020.12.1279Licence: CC BY-NC-ND 4.0

Open Access articleFinal published version, 1.8 MBLicence: CC BY-NC-ND 4.0

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title = "State-feedback control of grid and circulating current in modular multilevel converters",

abstract = "This paper proposes a state-feedback control of both grid and circulating current in modular multilevel converters (MMCs), which ensures that the input-coupled dynamics of the two currents to be controlled within a multi-input-multi-output (MIMO) approach. A systematic design procedure is detailed and the strategy is validated on a comprehensive MATLAB{\textregistered}/Simulink{\textregistered} model of a three-phase MMC. Simulation results show that, compared with the conventional control featuring two separate control loops, the proposed control shows better performance under unbalanced grid conditions.",

keywords = "Application of power electronics, Control system design, Disturbance rejection, Filtering, Linear multivariable systems, Smoothing",

author = "Bratcu, {Antoneta Iuliana} and Remus Teodorescu",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 The Authors. This is an open access article under the CC BY-NC-ND license; 21st IFAC World Congress 2020 ; Conference date: 12-07-2020 Through 17-07-2020",

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doi = "10.1016/j.ifacol.2020.12.1279",

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AU - Bratcu, Antoneta Iuliana

AU - Teodorescu, Remus

PY - 2020

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N2 - This paper proposes a state-feedback control of both grid and circulating current in modular multilevel converters (MMCs), which ensures that the input-coupled dynamics of the two currents to be controlled within a multi-input-multi-output (MIMO) approach. A systematic design procedure is detailed and the strategy is validated on a comprehensive MATLAB®/Simulink® model of a three-phase MMC. Simulation results show that, compared with the conventional control featuring two separate control loops, the proposed control shows better performance under unbalanced grid conditions.

AB - This paper proposes a state-feedback control of both grid and circulating current in modular multilevel converters (MMCs), which ensures that the input-coupled dynamics of the two currents to be controlled within a multi-input-multi-output (MIMO) approach. A systematic design procedure is detailed and the strategy is validated on a comprehensive MATLAB®/Simulink® model of a three-phase MMC. Simulation results show that, compared with the conventional control featuring two separate control loops, the proposed control shows better performance under unbalanced grid conditions.

KW - Application of power electronics

KW - Control system design

KW - Disturbance rejection

KW - Filtering

KW - Linear multivariable systems

KW - Smoothing

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DO - 10.1016/j.ifacol.2020.12.1279

M3 - Conference article in Journal

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SN - 2405-8963

VL - 53

SP - 12396

EP - 12401

JO - IFAC-PapersOnLine

JF - IFAC-PapersOnLine

IS - 2

T2 - 21st IFAC World Congress 2020

Y2 - 12 July 2020 through 17 July 2020

ER -

State-feedback control of grid and circulating current in modular multilevel converters

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