DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement

Kaveh Pouresmaeil; Maurice G.L. Roes; Nico H. Baars; C.G.E. (Korneel) Wijnands

doi:10.1109/APEC48139.2024.10509204

DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement

Kaveh Pouresmaeil
, Maurice G.L. Roes
, Nico H. Baars
, C.G.E. (Korneel) Wijnands

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

2 Citations (Scopus)

331 Downloads (Pure)

Abstract

DC-bias of the magnetic flux is a common challenge for transformer-connected converters, leading to increased losses and potential converter malfunction. This paper presents a novel strategy to detect and mitigate DC-bias currents through the transformer. It detects DC-bias currents from the presence of a switching-frequency harmonic component in the DC-link current and successively regulates it to zero. Stability analysis demonstrates the robustness of the proposed method against phase errors in the current measurement circuit. Experimental measurements are conducted to validate both the theoretical analysis and effectiveness of the detection and mitigation method.

Original language	English
Title of host publication	2024 IEEE Applied Power Electronics Conference and Exposition, APEC 2024
Publisher	Institute of Electrical and Electronics Engineers
Pages	2685-2690
Number of pages	6
ISBN (Electronic)	979-8-3503-1664-3
DOIs	https://doi.org/10.1109/APEC48139.2024.10509204
Publication status	Published - 2 May 2024
Event	39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024 - Long Beach, United States Duration: 25 Feb 2024 → 29 Feb 2024 Conference number: 39 https://apec-conf.org/

Conference

Conference	39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024
Abbreviated title	APEC 2024
Country/Territory	United States
City	Long Beach
Period	25/02/24 → 29/02/24
Internet address	https://apec-conf.org/

Funding

This publication is part of the project NEON (with project number 17628 of the research programme Crossover which is (partly) financed by the Dutch Research Council (NWO)).

Funders
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

Keywords

flux balancing
DC bias
isolated converters
magnetic saturation
DC-bias
dual-active bridge

Access to Document

10.1109/APEC48139.2024.10509204

pdfFinal author version , 1.58 MB
pdfFinal published version, 2.81 MBLicence: TAVERNE

Cite this

Pouresmaeil, K., Roes, M. G. L., Baars, N. H., & Wijnands, C. G. E. (2024). DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement. In 2024 IEEE Applied Power Electronics Conference and Exposition, APEC 2024 (pp. 2685-2690). Article 10509204 Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/APEC48139.2024.10509204

@inproceedings{0b6ad0ceb949426fbd3187eebbc780ca,

title = "DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement",

abstract = "DC-bias of the magnetic flux is a common challenge for transformer-connected converters, leading to increased losses and potential converter malfunction. This paper presents a novel strategy to detect and mitigate DC-bias currents through the transformer. It detects DC-bias currents from the presence of a switching-frequency harmonic component in the DC-link current and successively regulates it to zero. Stability analysis demonstrates the robustness of the proposed method against phase errors in the current measurement circuit. Experimental measurements are conducted to validate both the theoretical analysis and effectiveness of the detection and mitigation method.",

keywords = "flux balancing, DC bias, isolated converters, magnetic saturation, DC-bias, dual-active bridge",

author = "Kaveh Pouresmaeil and Roes, \{Maurice G.L.\} and Baars, \{Nico H.\} and Wijnands, \{C.G.E. (Korneel)\}",

year = "2024",

month = may,

day = "2",

doi = "10.1109/APEC48139.2024.10509204",

language = "English",

pages = "2685--2690",

booktitle = "2024 IEEE Applied Power Electronics Conference and Exposition, APEC 2024",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024, APEC 2024 ; Conference date: 25-02-2024 Through 29-02-2024",

url = "https://apec-conf.org/",

}

Pouresmaeil, K, Roes, MGL, Baars, NH & Wijnands, CGE 2024, DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement. in 2024 IEEE Applied Power Electronics Conference and Exposition, APEC 2024., 10509204, Institute of Electrical and Electronics Engineers, pp. 2685-2690, 39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024, Long Beach, United States, 25/02/24. https://doi.org/10.1109/APEC48139.2024.10509204

DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement. / Pouresmaeil, Kaveh; Roes, Maurice G.L.; Baars, Nico H. et al.
2024 IEEE Applied Power Electronics Conference and Exposition, APEC 2024. Institute of Electrical and Electronics Engineers, 2024. p. 2685-2690 10509204.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement

AU - Pouresmaeil, Kaveh

AU - Roes, Maurice G.L.

AU - Baars, Nico H.

AU - Wijnands, C.G.E. (Korneel)

N1 - Conference code: 39

PY - 2024/5/2

Y1 - 2024/5/2

N2 - DC-bias of the magnetic flux is a common challenge for transformer-connected converters, leading to increased losses and potential converter malfunction. This paper presents a novel strategy to detect and mitigate DC-bias currents through the transformer. It detects DC-bias currents from the presence of a switching-frequency harmonic component in the DC-link current and successively regulates it to zero. Stability analysis demonstrates the robustness of the proposed method against phase errors in the current measurement circuit. Experimental measurements are conducted to validate both the theoretical analysis and effectiveness of the detection and mitigation method.

AB - DC-bias of the magnetic flux is a common challenge for transformer-connected converters, leading to increased losses and potential converter malfunction. This paper presents a novel strategy to detect and mitigate DC-bias currents through the transformer. It detects DC-bias currents from the presence of a switching-frequency harmonic component in the DC-link current and successively regulates it to zero. Stability analysis demonstrates the robustness of the proposed method against phase errors in the current measurement circuit. Experimental measurements are conducted to validate both the theoretical analysis and effectiveness of the detection and mitigation method.

KW - flux balancing

KW - DC bias

KW - isolated converters

KW - magnetic saturation

KW - DC-bias

KW - dual-active bridge

UR - https://www.scopus.com/pages/publications/85192761423

U2 - 10.1109/APEC48139.2024.10509204

DO - 10.1109/APEC48139.2024.10509204

M3 - Conference contribution

SP - 2685

EP - 2690

BT - 2024 IEEE Applied Power Electronics Conference and Exposition, APEC 2024

PB - Institute of Electrical and Electronics Engineers

T2 - 39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024

Y2 - 25 February 2024 through 29 February 2024

ER -

DC-bias Current Detection and Mitigation for a Three-Phase Transformer-Connected Converter through DC-Link Measurement

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