A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter

Wentao Liu; Tamas Kerekes; Remus Teodorescu

doi:10.1109/PEDG56097.2023.10215280

A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter

Wentao Liu^*, Tamas Kerekes, Remus Teodorescu

^*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

Abstract

Modular multilevel converters (MMCs) based on grid-forming control as a converter-driven interface for renewable energy sources are the development trend of the future electronics-dominated power grids. MMC offers outstanding voltage quality without an AC filter, which is very distinct from the AC topology of conventional two-level converters (TLC). However, most literature that studies the grid-forming MMC directly follows the voltage tracking control (VTC) principle of TLC and does not involve the voltage controller specifically for the MMC topology. In this paper, the design of the voltage controller is step-by-step deduced based on the topological properties of MMC. According to the analysis findings, the proportional link of the voltage loop can result in high-frequency oscillation and the proposed VTC with a sole integral link cooperating with inner current-loop control presents excellent dynamic performance. Finally, the proposed VTC is realized robustly in the laboratory prototype.

Original language	English
Title of host publication	2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
Number of pages	6
Publisher	IEEE
Publication date	2023
Pages	105-110
Article number	10215280
ISBN (Print)	979-8-3503-2824-0
ISBN (Electronic)	979-8-3503-2823-3
DOIs	https://doi.org/10.1109/PEDG56097.2023.10215280
Publication status	Published - 2023
Event	14th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2023 - Shanghai, China Duration: 9 Jun 2023 → 12 Jun 2023

Conference

Conference	14th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2023
Country/Territory	China
City	Shanghai
Period	09/06/2023 → 12/06/2023

Series	IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
ISSN	2329-5767

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

grid-forming control
Modular multilevel converter
voltage tracking design

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10.1109/PEDG56097.2023.10215280

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Liu, Wentao ; Kerekes, Tamas ; Teodorescu, Remus. / A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter. 2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG). IEEE, 2023. pp. 105-110 (IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) ).

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title = "A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter",

abstract = "Modular multilevel converters (MMCs) based on grid-forming control as a converter-driven interface for renewable energy sources are the development trend of the future electronics-dominated power grids. MMC offers outstanding voltage quality without an AC filter, which is very distinct from the AC topology of conventional two-level converters (TLC). However, most literature that studies the grid-forming MMC directly follows the voltage tracking control (VTC) principle of TLC and does not involve the voltage controller specifically for the MMC topology. In this paper, the design of the voltage controller is step-by-step deduced based on the topological properties of MMC. According to the analysis findings, the proportional link of the voltage loop can result in high-frequency oscillation and the proposed VTC with a sole integral link cooperating with inner current-loop control presents excellent dynamic performance. Finally, the proposed VTC is realized robustly in the laboratory prototype.",

keywords = "grid-forming control, Modular multilevel converter, voltage tracking design",

author = "Wentao Liu and Tamas Kerekes and Remus Teodorescu",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 14th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2023 ; Conference date: 09-06-2023 Through 12-06-2023",

year = "2023",

doi = "10.1109/PEDG56097.2023.10215280",

language = "English",

isbn = "979-8-3503-2824-0",

series = "IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) ",

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Liu, W , Kerekes, T & Teodorescu, R 2023, A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter. in 2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)., 10215280, IEEE, IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) , pp. 105-110, 14th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2023, Shanghai, China, 09/06/2023. https://doi.org/10.1109/PEDG56097.2023.10215280

A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter. / Liu, Wentao ; Kerekes, Tamas ; Teodorescu, Remus.
2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG). IEEE, 2023. p. 105-110 10215280 (IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) ).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter

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AU - Kerekes, Tamas

AU - Teodorescu, Remus

PY - 2023

Y1 - 2023

N2 - Modular multilevel converters (MMCs) based on grid-forming control as a converter-driven interface for renewable energy sources are the development trend of the future electronics-dominated power grids. MMC offers outstanding voltage quality without an AC filter, which is very distinct from the AC topology of conventional two-level converters (TLC). However, most literature that studies the grid-forming MMC directly follows the voltage tracking control (VTC) principle of TLC and does not involve the voltage controller specifically for the MMC topology. In this paper, the design of the voltage controller is step-by-step deduced based on the topological properties of MMC. According to the analysis findings, the proportional link of the voltage loop can result in high-frequency oscillation and the proposed VTC with a sole integral link cooperating with inner current-loop control presents excellent dynamic performance. Finally, the proposed VTC is realized robustly in the laboratory prototype.

AB - Modular multilevel converters (MMCs) based on grid-forming control as a converter-driven interface for renewable energy sources are the development trend of the future electronics-dominated power grids. MMC offers outstanding voltage quality without an AC filter, which is very distinct from the AC topology of conventional two-level converters (TLC). However, most literature that studies the grid-forming MMC directly follows the voltage tracking control (VTC) principle of TLC and does not involve the voltage controller specifically for the MMC topology. In this paper, the design of the voltage controller is step-by-step deduced based on the topological properties of MMC. According to the analysis findings, the proportional link of the voltage loop can result in high-frequency oscillation and the proposed VTC with a sole integral link cooperating with inner current-loop control presents excellent dynamic performance. Finally, the proposed VTC is realized robustly in the laboratory prototype.

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Liu W , Kerekes T , Teodorescu R. A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter. In 2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG). IEEE. 2023. p. 105-110. 10215280. (IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) ). doi: 10.1109/PEDG56097.2023.10215280

A Control-Oriented Voltage Tracking Design for Grid-Forming Based Modular Multilevel Converter

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