Power Routing Strategy for an Offshore-Onshore Bipolar VSC-HVDC Interconnector

J. Marchand; A Perilla; M.  Garapati; Francisco Gonzalez-Longatt; J.L. Rueda Torres

doi:10.1109/PowerTech55446.2023.10202854

Power Routing Strategy for an Offshore-Onshore Bipolar VSC-HVDC Interconnector

J. Marchand, A Perilla , M. Garapati, Francisco Gonzalez-Longatt, J.L. Rueda Torres

Intelligent Electrical Power Grids

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

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Abstract

Distantly-located offshore energy hubs need to be connected to the shore via High Voltage Direct Current (HVDC) links to allow for an efficient bulk power exchange. A bipolar configuration of the HVDC link is suitable for a point-to-point connection, as it provides redundancy, and, therefore, a larger reliability, e.g. half of the rated transfer capacity can still be transferred via one of the poles in case of a fault occurring on the other pole. Nevertheless, a control strategy of the converters that can effectively enable a situation-dependent power routing between the two poles constitutes a research challenge. In this paper, two control strategies are proposed for the offshore Modular Multi-level Converters (MMCs) of a bipolar HVDC link connecting a 2 GW offshore hub to the shore. The strategies, based on DC current and DC voltage measurements, respectively, enable to track and adjust the amount of power flowing through each pole of the link. Real-time digital simulations show that both strategies can effectively route the power exchanges through the bipolar HVDC link, e.g. operation under balanced or unbalanced conditions. The strategy based on DC current seems more suitable to manage the dynamic performance of the HVDC link.

Original language	English
Title of host publication	Proceedings of the 2023 IEEE Belgrade PowerTech
Place of Publication	Piscataway
Publisher	IEEE
Pages	1-6
Number of pages	6
ISBN (Electronic)	978-1-6654-8778-8
ISBN (Print)	978-1-6654-8779-5
DOIs	https://doi.org/10.1109/PowerTech55446.2023.10202854
Publication status	Published - 2023
Event	2023 IEEE Belgrade PowerTech - Belgrade, Serbia Duration: 25 Jun 2023 → 29 Jun 2023

Publication series

Name	2023 IEEE Belgrade PowerTech, PowerTech 2023

Conference

Conference	2023 IEEE Belgrade PowerTech
Country/Territory	Serbia
City	Belgrade
Period	25/06/23 → 29/06/23

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

Electromagnetic Transient (EMT) simulation
High Voltage Direct Current (HVDC) links
large-scale offshore networks
DC power management

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10.1109/PowerTech55446.2023.10202854

Power_Routing_Strategy_for_an_Offshore-Onshore_Bipolar_VSC-HVDC_InterconnectorFinal published version, 2.54 MB

Cite this

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title = "Power Routing Strategy for an Offshore-Onshore Bipolar VSC-HVDC Interconnector",

abstract = "Distantly-located offshore energy hubs need to be connected to the shore via High Voltage Direct Current (HVDC) links to allow for an efficient bulk power exchange. A bipolar configuration of the HVDC link is suitable for a point-to-point connection, as it provides redundancy, and, therefore, a larger reliability, e.g. half of the rated transfer capacity can still be transferred via one of the poles in case of a fault occurring on the other pole. Nevertheless, a control strategy of the converters that can effectively enable a situation-dependent power routing between the two poles constitutes a research challenge. In this paper, two control strategies are proposed for the offshore Modular Multi-level Converters (MMCs) of a bipolar HVDC link connecting a 2 GW offshore hub to the shore. The strategies, based on DC current and DC voltage measurements, respectively, enable to track and adjust the amount of power flowing through each pole of the link. Real-time digital simulations show that both strategies can effectively route the power exchanges through the bipolar HVDC link, e.g. operation under balanced or unbalanced conditions. The strategy based on DC current seems more suitable to manage the dynamic performance of the HVDC link.",

keywords = "Electromagnetic Transient (EMT) simulation, High Voltage Direct Current (HVDC) links, large-scale offshore networks, DC power management",

author = "J. Marchand and A Perilla and M. Garapati and Francisco Gonzalez-Longatt and {Rueda Torres}, J.L.",

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 IEEE Belgrade PowerTech ; Conference date: 25-06-2023 Through 29-06-2023",

year = "2023",

doi = "10.1109/PowerTech55446.2023.10202854",

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isbn = "978-1-6654-8779-5",

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Marchand, J, Perilla , A, Garapati, M, Gonzalez-Longatt, F & Rueda Torres, JL 2023, Power Routing Strategy for an Offshore-Onshore Bipolar VSC-HVDC Interconnector. in Proceedings of the 2023 IEEE Belgrade PowerTech. 2023 IEEE Belgrade PowerTech, PowerTech 2023, IEEE, Piscataway, pp. 1-6, 2023 IEEE Belgrade PowerTech, Belgrade, Serbia, 25/06/23. https://doi.org/10.1109/PowerTech55446.2023.10202854

Power Routing Strategy for an Offshore-Onshore Bipolar VSC-HVDC Interconnector. / Marchand, J.; Perilla , A; Garapati, M. et al.
Proceedings of the 2023 IEEE Belgrade PowerTech. Piscataway: IEEE, 2023. p. 1-6 (2023 IEEE Belgrade PowerTech, PowerTech 2023).

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

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AU - Rueda Torres, J.L.

N1 - 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.

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Power Routing Strategy for an Offshore-Onshore Bipolar VSC-HVDC Interconnector

Abstract

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Bibliographical note

Keywords

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