Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter

Jaehong Lee; Hyunseob Kim; Dong Uk Kim; Kehan Cui; Sungmin Kim; Seung Hwan Lee

doi:10.1109/ECCE53617.2023.10362148

Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter

Jaehong Lee
, Hyunseob Kim
, Dong Uk Kim
, Kehan Cui
, Sungmin Kim
, Seung Hwan Lee

School of Electrical and Computer Engineering

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

2 Scopus citations

Abstract

Loosely-coupled-resonant dual-active-bridge (LCR-DAB) converter substitutes a high-frequency (HF) transformer for inductive power transfer (IPT) coils. An air gap between the IPT coils is advantageous in achieving high-voltage isolation, the key technical barrier of medium-voltage (MV) solid-state-transformer (SST) systems. Owing to weak magnetic coupling between IPT coils, the LCR-DAB converter requires resonant compensations. This makes the LCR-DAB converter unique characteristics compared to conventional transformer-coupled DAB converters. Conventional modulation strategies should be revisited for the LCR-DAB converter. In this paper, the well-known phase-shift modulation (PSM) is investigated for LCR-DAB converters. Input impedance, output power, and efficiency of the LCR-DAB converter are analyzed with respect to operating frequency and phase-shift angle. Based on the analysis, an efficient and parameter-robust PSM strategy for LCR-DAB converters is proposed. In addition, a novel MV-isolated coil design for the LCR-DAB converter is presented. The proposed modulation strategy was evaluated by PLECS simulation results.

Original language	English
Title of host publication	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	899-904
Number of pages	6
ISBN (Electronic)	9798350316445
DOIs	https://doi.org/10.1109/ECCE53617.2023.10362148
State	Published - 2023
Event	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 - Nashville, United States Duration: 29 Oct 2023 → 2 Nov 2023

Publication series

Name	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

Conference

Conference	2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Country/Territory	United States
City	Nashville
Period	29/10/23 → 2/11/23

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

LCR-DAB converter
Phase shift modulation
inductive power transfer
insulation

Access to Document

10.1109/ECCE53617.2023.10362148

Cite this

Lee, J., Kim, H., Kim, D. U., Cui, K., Kim, S., & Lee, S. H. (2023). Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter. In 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 (pp. 899-904). (2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE53617.2023.10362148

@inproceedings{ee3628033f9a4085b8c1d02345284aee,

title = "Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter",

abstract = "Loosely-coupled-resonant dual-active-bridge (LCR-DAB) converter substitutes a high-frequency (HF) transformer for inductive power transfer (IPT) coils. An air gap between the IPT coils is advantageous in achieving high-voltage isolation, the key technical barrier of medium-voltage (MV) solid-state-transformer (SST) systems. Owing to weak magnetic coupling between IPT coils, the LCR-DAB converter requires resonant compensations. This makes the LCR-DAB converter unique characteristics compared to conventional transformer-coupled DAB converters. Conventional modulation strategies should be revisited for the LCR-DAB converter. In this paper, the well-known phase-shift modulation (PSM) is investigated for LCR-DAB converters. Input impedance, output power, and efficiency of the LCR-DAB converter are analyzed with respect to operating frequency and phase-shift angle. Based on the analysis, an efficient and parameter-robust PSM strategy for LCR-DAB converters is proposed. In addition, a novel MV-isolated coil design for the LCR-DAB converter is presented. The proposed modulation strategy was evaluated by PLECS simulation results.",

keywords = "LCR-DAB converter, Phase shift modulation, inductive power transfer, insulation",

author = "Jaehong Lee and Hyunseob Kim and Kim, \{Dong Uk\} and Kehan Cui and Sungmin Kim and Lee, \{Seung Hwan\}",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 ; Conference date: 29-10-2023 Through 02-11-2023",

year = "2023",

doi = "10.1109/ECCE53617.2023.10362148",

language = "English",

series = "2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "899--904",

booktitle = "2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023",

address = "United States",

}

Lee, J, Kim, H, Kim, DU, Cui, K, Kim, S & Lee, SH 2023, Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter. in 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023. 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023, Institute of Electrical and Electronics Engineers Inc., pp. 899-904, 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023, Nashville, United States, 29/10/23. https://doi.org/10.1109/ECCE53617.2023.10362148

Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter. / Lee, Jaehong; Kim, Hyunseob; Kim, Dong Uk et al.
2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023. Institute of Electrical and Electronics Engineers Inc., 2023. p. 899-904 (2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023).

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

TY - GEN

T1 - Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter

AU - Lee, Jaehong

AU - Kim, Hyunseob

AU - Kim, Dong Uk

AU - Cui, Kehan

AU - Kim, Sungmin

AU - Lee, Seung Hwan

PY - 2023

Y1 - 2023

N2 - Loosely-coupled-resonant dual-active-bridge (LCR-DAB) converter substitutes a high-frequency (HF) transformer for inductive power transfer (IPT) coils. An air gap between the IPT coils is advantageous in achieving high-voltage isolation, the key technical barrier of medium-voltage (MV) solid-state-transformer (SST) systems. Owing to weak magnetic coupling between IPT coils, the LCR-DAB converter requires resonant compensations. This makes the LCR-DAB converter unique characteristics compared to conventional transformer-coupled DAB converters. Conventional modulation strategies should be revisited for the LCR-DAB converter. In this paper, the well-known phase-shift modulation (PSM) is investigated for LCR-DAB converters. Input impedance, output power, and efficiency of the LCR-DAB converter are analyzed with respect to operating frequency and phase-shift angle. Based on the analysis, an efficient and parameter-robust PSM strategy for LCR-DAB converters is proposed. In addition, a novel MV-isolated coil design for the LCR-DAB converter is presented. The proposed modulation strategy was evaluated by PLECS simulation results.

AB - Loosely-coupled-resonant dual-active-bridge (LCR-DAB) converter substitutes a high-frequency (HF) transformer for inductive power transfer (IPT) coils. An air gap between the IPT coils is advantageous in achieving high-voltage isolation, the key technical barrier of medium-voltage (MV) solid-state-transformer (SST) systems. Owing to weak magnetic coupling between IPT coils, the LCR-DAB converter requires resonant compensations. This makes the LCR-DAB converter unique characteristics compared to conventional transformer-coupled DAB converters. Conventional modulation strategies should be revisited for the LCR-DAB converter. In this paper, the well-known phase-shift modulation (PSM) is investigated for LCR-DAB converters. Input impedance, output power, and efficiency of the LCR-DAB converter are analyzed with respect to operating frequency and phase-shift angle. Based on the analysis, an efficient and parameter-robust PSM strategy for LCR-DAB converters is proposed. In addition, a novel MV-isolated coil design for the LCR-DAB converter is presented. The proposed modulation strategy was evaluated by PLECS simulation results.

KW - LCR-DAB converter

KW - Phase shift modulation

KW - inductive power transfer

KW - insulation

UR - https://www.scopus.com/pages/publications/85182951730

U2 - 10.1109/ECCE53617.2023.10362148

DO - 10.1109/ECCE53617.2023.10362148

M3 - Conference contribution

AN - SCOPUS:85182951730

T3 - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

SP - 899

EP - 904

BT - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

Y2 - 29 October 2023 through 2 November 2023

ER -

Lee J, Kim H, Kim DU, Cui K, Kim S, Lee SH. Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter. In 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023. Institute of Electrical and Electronics Engineers Inc. 2023. p. 899-904. (2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023). doi: 10.1109/ECCE53617.2023.10362148

Efficient and Parameter Robust Phase-Shift-Modulation Strategy for LCR-DAB Converter

Abstract

Publication series

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UN SDGs

Keywords

Access to Document

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