Switch Loss Balancing Strategy for Dual-Active-Bridge DC/DC Converter Employing Extended Phase-Shift Switching Modulation

Eden Sibhat Temesgen; Tsegaab Alemayehu Wagaye; Tae Hyun Kang; Suk Ho Ahn; Yam Prasad Siwakoti; Minsung Kim

doi:10.1109/TIE.2025.3621648

Switch Loss Balancing Strategy for Dual-Active-Bridge DC/DC Converter Employing Extended Phase-Shift Switching Modulation

Eden Sibhat Temesgen
, Tsegaab Alemayehu Wagaye
, Tae Hyun Kang
, Suk Ho Ahn
, Yam Prasad Siwakoti
, Minsung Kim

Electrical Power Conversion

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

Abstract

Dual-active-bridge (DAB) converter utilizing conventional extended phase-shift modulation suffers from the unbalanced switch loss among the primary-side switches in buck operation and among the secondary-side switches in boost operation. To overcome this problem, we propose the switch loss balancing strategy for DAB dc/dc converter operating with extended phase-shift modulation. The split complementary duty signals over two switching cycles enable balancing of turn-OFF switching loss and conduction loss over the switches in both forward and backward power flow directions. Corresponding different dead-times allow all the switches to be turned ON with zero-voltage-switching (ZVS) at both heavy and light loads. The duty and phase-shift values are selected separately, thereby simplifying the control logic. Experimental validation on a 3.3 kW prototype designed for a 800-V input and an output range of 500 to 800-V demonstrates the uniform heat distribution across switches while preserving the inherent advantages of extended phase-shift modulation for DAB converter.

Original language	English
Journal	IEEE Transactions on Industrial Electronics
DOIs	https://doi.org/10.1109/TIE.2025.3621648
State	Accepted/In press - 2025

Funding

Received 23 May 2025; revised 19 August 2025; accepted 2 October 2025. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) under Grant RS-2023-00210590, in part by the Technology Innovation Program (Development of high-density power conversion system technology based on integrated circuits) under Grant 2410012336 and Grant RS-2025-02633301, funded by the Ministry of Trade, Industry Energy (MOTIE, Korea), and in part by the National Research Council of Science Technology (NST) grant by the Korea government (MSIT) under Grant GTL25051-000. (Corresponding author: Minsung Kim.) Eden Sibhat Temesgen, Tsegaab Alemayehu Wagaye, Tae-Hyun Kang, and Minsung Kim are with the Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, South Korea (e-mail: [email protected]; [email protected]; [email protected]; [email protected]).

Keywords

Balanced heat distribution
dead-time compensation
decoupled control
inner/outer mode
two switching cycles

Access to Document

10.1109/TIE.2025.3621648

Cite this

@article{8ffc7793495d499f9fa91bab790e4262,

title = "Switch Loss Balancing Strategy for Dual-Active-Bridge DC/DC Converter Employing Extended Phase-Shift Switching Modulation",

abstract = "Dual-active-bridge (DAB) converter utilizing conventional extended phase-shift modulation suffers from the unbalanced switch loss among the primary-side switches in buck operation and among the secondary-side switches in boost operation. To overcome this problem, we propose the switch loss balancing strategy for DAB dc/dc converter operating with extended phase-shift modulation. The split complementary duty signals over two switching cycles enable balancing of turn-OFF switching loss and conduction loss over the switches in both forward and backward power flow directions. Corresponding different dead-times allow all the switches to be turned ON with zero-voltage-switching (ZVS) at both heavy and light loads. The duty and phase-shift values are selected separately, thereby simplifying the control logic. Experimental validation on a 3.3 kW prototype designed for a 800-V input and an output range of 500 to 800-V demonstrates the uniform heat distribution across switches while preserving the inherent advantages of extended phase-shift modulation for DAB converter.",

keywords = "Balanced heat distribution, dead-time compensation, decoupled control, inner/outer mode, two switching cycles",

author = "Temesgen, \{Eden Sibhat\} and Wagaye, \{Tsegaab Alemayehu\} and Kang, \{Tae Hyun\} and Ahn, \{Suk Ho\} and Siwakoti, \{Yam Prasad\} and Minsung Kim",

note = "Publisher Copyright: {\textcopyright} 1982-2012 IEEE.",

year = "2025",

doi = "10.1109/TIE.2025.3621648",

language = "English",

journal = "IEEE Transactions on Industrial Electronics",

issn = "0278-0046",

publisher = "Institute of Electrical and Electronics Engineers",

}

TY - JOUR

T1 - Switch Loss Balancing Strategy for Dual-Active-Bridge DC/DC Converter Employing Extended Phase-Shift Switching Modulation

AU - Temesgen, Eden Sibhat

AU - Wagaye, Tsegaab Alemayehu

AU - Kang, Tae Hyun

AU - Ahn, Suk Ho

AU - Siwakoti, Yam Prasad

AU - Kim, Minsung

PY - 2025

Y1 - 2025

N2 - Dual-active-bridge (DAB) converter utilizing conventional extended phase-shift modulation suffers from the unbalanced switch loss among the primary-side switches in buck operation and among the secondary-side switches in boost operation. To overcome this problem, we propose the switch loss balancing strategy for DAB dc/dc converter operating with extended phase-shift modulation. The split complementary duty signals over two switching cycles enable balancing of turn-OFF switching loss and conduction loss over the switches in both forward and backward power flow directions. Corresponding different dead-times allow all the switches to be turned ON with zero-voltage-switching (ZVS) at both heavy and light loads. The duty and phase-shift values are selected separately, thereby simplifying the control logic. Experimental validation on a 3.3 kW prototype designed for a 800-V input and an output range of 500 to 800-V demonstrates the uniform heat distribution across switches while preserving the inherent advantages of extended phase-shift modulation for DAB converter.

AB - Dual-active-bridge (DAB) converter utilizing conventional extended phase-shift modulation suffers from the unbalanced switch loss among the primary-side switches in buck operation and among the secondary-side switches in boost operation. To overcome this problem, we propose the switch loss balancing strategy for DAB dc/dc converter operating with extended phase-shift modulation. The split complementary duty signals over two switching cycles enable balancing of turn-OFF switching loss and conduction loss over the switches in both forward and backward power flow directions. Corresponding different dead-times allow all the switches to be turned ON with zero-voltage-switching (ZVS) at both heavy and light loads. The duty and phase-shift values are selected separately, thereby simplifying the control logic. Experimental validation on a 3.3 kW prototype designed for a 800-V input and an output range of 500 to 800-V demonstrates the uniform heat distribution across switches while preserving the inherent advantages of extended phase-shift modulation for DAB converter.

KW - Balanced heat distribution

KW - dead-time compensation

KW - decoupled control

KW - inner/outer mode

KW - two switching cycles

UR - https://www.scopus.com/pages/publications/105023193472

U2 - 10.1109/TIE.2025.3621648

DO - 10.1109/TIE.2025.3621648

M3 - Article

AN - SCOPUS:105023193472

SN - 0278-0046

JO - IEEE Transactions on Industrial Electronics

JF - IEEE Transactions on Industrial Electronics

ER -

Switch Loss Balancing Strategy for Dual-Active-Bridge DC/DC Converter Employing Extended Phase-Shift Switching Modulation

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this