DC Link Capacity Enhancement for MMC-based Distribution Link using Dynamic Voltage Operation

Robin van der Sande; Rohan Deshmukh; Aditya Shekhar; Pavol Bauer

doi:10.23919/ICPE2023-ECCEAsia54778.2023.10213697

DC Link Capacity Enhancement for MMC-based Distribution Link using Dynamic Voltage Operation

Robin van der Sande, Rohan Deshmukh, Aditya Shekhar, Pavol Bauer

DC systems, Energy conversion & Storage

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

When operating a modular multilevel converter (MMC), a margin appears between the arm voltage and sum capacitor voltage corresponding to the power dependent ripple. This margin can be used to enhance the DC link voltage and increase the transfer capacity of an MMC-based distribution link while keeping the submodule (SM) stresses fixed. Consequently, this dynamic enhancement in transfer capacity can be achieved with the same submodule switch and capacitor voltage ratings. Using an arm-level averaged simulation model of a 10MW MMC-based MVDC link, the enhancement concept is verified and shown to be beneficial to a practical link application. Besides, a dependency is discovered between the enhancement limit and the grid-injected reactive power, which defines the basis of the proposed control for dynamic enhanced operation.

Original language	English
Title of host publication	Proceedings of the 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)
Publisher	IEEE
Pages	636-642
Number of pages	7
ISBN (Electronic)	978-89-5708-350-5
ISBN (Print)	979-8-3503-3620-7
DOIs	https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213697
Publication status	Published - 2023
Event	2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia) - Jeju Island, Korea, Republic of Duration: 22 May 2023 → 25 May 2023 Conference number: 11th

Conference

Conference	2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)
Country/Territory	Korea, Republic of
City	Jeju Island
Period	22/05/23 → 25/05/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Power electronic converter
Distribution link
Modular multilevel converter
Power systems

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10.23919/ICPE2023-ECCEAsia54778.2023.10213697

DC_Link_Capacity_Enhancement_for_MMC-based_Distribution_Link_using_Dynamic_Voltage_OperationFinal published version, 1.27 MB

Cite this

@inproceedings{c5f30ded531640e7b75436b8698c2753,

title = "DC Link Capacity Enhancement for MMC-based Distribution Link using Dynamic Voltage Operation",

abstract = "When operating a modular multilevel converter (MMC), a margin appears between the arm voltage and sum capacitor voltage corresponding to the power dependent ripple. This margin can be used to enhance the DC link voltage and increase the transfer capacity of an MMC-based distribution link while keeping the submodule (SM) stresses fixed. Consequently, this dynamic enhancement in transfer capacity can be achieved with the same submodule switch and capacitor voltage ratings. Using an arm-level averaged simulation model of a 10MW MMC-based MVDC link, the enhancement concept is verified and shown to be beneficial to a practical link application. Besides, a dependency is discovered between the enhancement limit and the grid-injected reactive power, which defines the basis of the proposed control for dynamic enhanced operation.",

keywords = "Power electronic converter, Distribution link, Modular multilevel converter, Power systems",

author = "{van der Sande}, Robin and Rohan Deshmukh and Aditya Shekhar and Pavol Bauer",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia) ; Conference date: 22-05-2023 Through 25-05-2023",

year = "2023",

doi = "10.23919/ICPE2023-ECCEAsia54778.2023.10213697",

language = "English",

isbn = "979-8-3503-3620-7",

pages = "636--642",

booktitle = "Proceedings of the 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)",

publisher = "IEEE",

address = "United States",

}

van der Sande, R , Deshmukh, R , Shekhar, A & Bauer, P 2023, DC Link Capacity Enhancement for MMC-based Distribution Link using Dynamic Voltage Operation. in Proceedings of the 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia). IEEE, pp. 636-642, 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia), Jeju Island, Korea, Republic of, 22/05/23. https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213697

DC Link Capacity Enhancement for MMC-based Distribution Link using Dynamic Voltage Operation. / van der Sande, Robin ; Deshmukh, Rohan ; Shekhar, Aditya et al.
Proceedings of the 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia). IEEE, 2023. p. 636-642.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - DC Link Capacity Enhancement for MMC-based Distribution Link using Dynamic Voltage Operation

AU - van der Sande, Robin

AU - Deshmukh, Rohan

AU - Shekhar, Aditya

AU - Bauer, Pavol

N1 - Conference code: 11th

PY - 2023

Y1 - 2023

N2 - When operating a modular multilevel converter (MMC), a margin appears between the arm voltage and sum capacitor voltage corresponding to the power dependent ripple. This margin can be used to enhance the DC link voltage and increase the transfer capacity of an MMC-based distribution link while keeping the submodule (SM) stresses fixed. Consequently, this dynamic enhancement in transfer capacity can be achieved with the same submodule switch and capacitor voltage ratings. Using an arm-level averaged simulation model of a 10MW MMC-based MVDC link, the enhancement concept is verified and shown to be beneficial to a practical link application. Besides, a dependency is discovered between the enhancement limit and the grid-injected reactive power, which defines the basis of the proposed control for dynamic enhanced operation.

AB - When operating a modular multilevel converter (MMC), a margin appears between the arm voltage and sum capacitor voltage corresponding to the power dependent ripple. This margin can be used to enhance the DC link voltage and increase the transfer capacity of an MMC-based distribution link while keeping the submodule (SM) stresses fixed. Consequently, this dynamic enhancement in transfer capacity can be achieved with the same submodule switch and capacitor voltage ratings. Using an arm-level averaged simulation model of a 10MW MMC-based MVDC link, the enhancement concept is verified and shown to be beneficial to a practical link application. Besides, a dependency is discovered between the enhancement limit and the grid-injected reactive power, which defines the basis of the proposed control for dynamic enhanced operation.

KW - Power electronic converter

KW - Distribution link

KW - Modular multilevel converter

KW - Power systems

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DO - 10.23919/ICPE2023-ECCEAsia54778.2023.10213697

M3 - Conference contribution

SN - 979-8-3503-3620-7

SP - 636

EP - 642

BT - Proceedings of the 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)

PB - IEEE

T2 - 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)

Y2 - 22 May 2023 through 25 May 2023

ER -

DC Link Capacity Enhancement for MMC-based Distribution Link using Dynamic Voltage Operation

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Keywords

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