A Hybrid Modular Interline Current Flow Controller for Meshed HVDC Grids

Shuxin Zhang; Binbin Li; Wei Wang; Yujie Zhang; Dianguo Xu; Gen Li; Jun Liang

doi:10.1109/TIE.2021.3139187

A Hybrid Modular Interline Current Flow Controller for Meshed HVDC Grids

Shuxin Zhang, Binbin Li^*, Wei Wang^*, Yujie Zhang, Dianguo Xu, Gen Li, Jun Liang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

In meshed high-voltage direct current (HVdc) grid, the current flows through the lines cannot be controlled with sufficient freedom without additional power electronics-based devices, namely current flow controller (CFC). In this article, a novel hybrid modular interline CFC is proposed based on H-bridge submodules and thyristor valves. Due to its modularity, the proposed CFC is particularly suitable for applications requiring high voltage and large power capacity. The circuit structure, operation principle, and parameter design are presented. In addition, a control strategy is developed for the proposed CFC. Simulations are carried out using a four-terminal meshed HVdc grid to verify the effectiveness of the topology and its control strategy. A downscaled prototype is built, which further validates the proposed CFC.

Original language	English
Pages (from-to)	10055-10065
Number of pages	11
Journal	IEEE Transactions on Industrial Electronics
Volume	69
Issue number	10
DOIs	https://doi.org/10.1109/TIE.2021.3139187
Publication status	Published - 1 Oct 2022
Externally published	Yes

Keywords

Current flow controller (CFC)
High-voltage direct current (HVdc)
Meshed HVdc grid
Submodules (SMs)
Thyristor

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10.1109/TIE.2021.3139187

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title = "A Hybrid Modular Interline Current Flow Controller for Meshed HVDC Grids",

abstract = "In meshed high-voltage direct current (HVdc) grid, the current flows through the lines cannot be controlled with sufficient freedom without additional power electronics-based devices, namely current flow controller (CFC). In this article, a novel hybrid modular interline CFC is proposed based on H-bridge submodules and thyristor valves. Due to its modularity, the proposed CFC is particularly suitable for applications requiring high voltage and large power capacity. The circuit structure, operation principle, and parameter design are presented. In addition, a control strategy is developed for the proposed CFC. Simulations are carried out using a four-terminal meshed HVdc grid to verify the effectiveness of the topology and its control strategy. A downscaled prototype is built, which further validates the proposed CFC.",

keywords = "Current flow controller (CFC), High-voltage direct current (HVdc), Meshed HVdc grid, Submodules (SMs), Thyristor",

author = "Shuxin Zhang and Binbin Li and Wei Wang and Yujie Zhang and Dianguo Xu and Gen Li and Jun Liang",

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AU - Zhang, Shuxin

AU - Li, Binbin

AU - Wang, Wei

AU - Zhang, Yujie

AU - Xu, Dianguo

AU - Li, Gen

AU - Liang, Jun

PY - 2022/10/1

Y1 - 2022/10/1

N2 - In meshed high-voltage direct current (HVdc) grid, the current flows through the lines cannot be controlled with sufficient freedom without additional power electronics-based devices, namely current flow controller (CFC). In this article, a novel hybrid modular interline CFC is proposed based on H-bridge submodules and thyristor valves. Due to its modularity, the proposed CFC is particularly suitable for applications requiring high voltage and large power capacity. The circuit structure, operation principle, and parameter design are presented. In addition, a control strategy is developed for the proposed CFC. Simulations are carried out using a four-terminal meshed HVdc grid to verify the effectiveness of the topology and its control strategy. A downscaled prototype is built, which further validates the proposed CFC.

AB - In meshed high-voltage direct current (HVdc) grid, the current flows through the lines cannot be controlled with sufficient freedom without additional power electronics-based devices, namely current flow controller (CFC). In this article, a novel hybrid modular interline CFC is proposed based on H-bridge submodules and thyristor valves. Due to its modularity, the proposed CFC is particularly suitable for applications requiring high voltage and large power capacity. The circuit structure, operation principle, and parameter design are presented. In addition, a control strategy is developed for the proposed CFC. Simulations are carried out using a four-terminal meshed HVdc grid to verify the effectiveness of the topology and its control strategy. A downscaled prototype is built, which further validates the proposed CFC.

KW - Current flow controller (CFC)

KW - High-voltage direct current (HVdc)

KW - Meshed HVdc grid

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KW - Thyristor

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A Hybrid Modular Interline Current Flow Controller for Meshed HVDC Grids

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Keywords

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