Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters

Guofeng Liu; Yanxiao Lei; Xinmai Gao; Jianzhen Qu; Donghua Wu; Shuai Lin; Xin Gao

doi:10.1109/ACEPE67873.2025.11405526

Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters

Guofeng Liu
, Yanxiao Lei
, Xinmai Gao
, Jianzhen Qu
, Donghua Wu
, Shuai Lin
, Xin Gao

CRRC Qingdao Sifang Co., Ltd.
School of Electrical Engineering and Automation, Harbin Institute of Technology

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

Abstract

This paper addresses the issue of maintaining high efficiency in the inverter power supply of wireless power transfer (WPT) systems across a wide power range. A smooth transition switching strategy is proposed, which optimizes the modulation method of the driving signal to achieve seamless switching between full-bridge (FB) and half-bridge (HB) modes. This effectively suppresses current surges and electromagnetic interference. The feasibility of the proposed strategy is further verified through simulations, and the results show that after adopting the smooth switching strategy, the system operates with continuous and smooth current during the switching process, with no significant overshoot, enhancing system stability and safety. This research provides an effective control scheme for achieving high efficiency and low-stress operation in WPT systems across a wide power range.

Original language	English
Title of host publication	2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025
Editors	Fushuan Wen, Fei Gao
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798331566708
DOIs	https://doi.org/10.1109/ACEPE67873.2025.11405526
State	Published - 2025
Externally published	Yes
Event	2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025 - Shanghai, China Duration: 12 Dec 2025 → 14 Dec 2025

Publication series

Name	2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025

Conference

Conference	2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025
Country/Territory	China
City	Shanghai
Period	12/12/25 → 14/12/25

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

inverter
mode switching
wireless power transfer

Access to Document

10.1109/ACEPE67873.2025.11405526

Cite this

Liu, G., Lei, Y., Gao, X., Qu, J., Wu, D., Lin, S., & Gao, X. (2025). Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters. In F. Wen, & F. Gao (Eds.), 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025 (2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ACEPE67873.2025.11405526

Liu, Guofeng ; Lei, Yanxiao ; Gao, Xinmai et al. / Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters. 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025. editor / Fushuan Wen ; Fei Gao. Institute of Electrical and Electronics Engineers Inc., 2025. (2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025).

@inproceedings{f8cbd5007378435d8340293bda5aa163,

title = "Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters",

abstract = "This paper addresses the issue of maintaining high efficiency in the inverter power supply of wireless power transfer (WPT) systems across a wide power range. A smooth transition switching strategy is proposed, which optimizes the modulation method of the driving signal to achieve seamless switching between full-bridge (FB) and half-bridge (HB) modes. This effectively suppresses current surges and electromagnetic interference. The feasibility of the proposed strategy is further verified through simulations, and the results show that after adopting the smooth switching strategy, the system operates with continuous and smooth current during the switching process, with no significant overshoot, enhancing system stability and safety. This research provides an effective control scheme for achieving high efficiency and low-stress operation in WPT systems across a wide power range.",

keywords = "inverter, mode switching, wireless power transfer",

author = "Guofeng Liu and Yanxiao Lei and Xinmai Gao and Jianzhen Qu and Donghua Wu and Shuai Lin and Xin Gao",

note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025 ; Conference date: 12-12-2025 Through 14-12-2025",

year = "2025",

doi = "10.1109/ACEPE67873.2025.11405526",

language = "英语",

series = "2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025",

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

editor = "Fushuan Wen and Fei Gao",

booktitle = "2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025",

address = "美国",

}

Liu, G, Lei, Y, Gao, X, Qu, J, Wu, D, Lin, S & Gao, X 2025, Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters. in F Wen & F Gao (eds), 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025. 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025, Institute of Electrical and Electronics Engineers Inc., 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025, Shanghai, China, 12/12/25. https://doi.org/10.1109/ACEPE67873.2025.11405526

Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters. / Liu, Guofeng; Lei, Yanxiao; Gao, Xinmai et al.
2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025. ed. / Fushuan Wen; Fei Gao. Institute of Electrical and Electronics Engineers Inc., 2025. (2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025).

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

TY - GEN

T1 - Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters

AU - Liu, Guofeng

AU - Lei, Yanxiao

AU - Gao, Xinmai

AU - Qu, Jianzhen

AU - Wu, Donghua

AU - Lin, Shuai

AU - Gao, Xin

PY - 2025

Y1 - 2025

N2 - This paper addresses the issue of maintaining high efficiency in the inverter power supply of wireless power transfer (WPT) systems across a wide power range. A smooth transition switching strategy is proposed, which optimizes the modulation method of the driving signal to achieve seamless switching between full-bridge (FB) and half-bridge (HB) modes. This effectively suppresses current surges and electromagnetic interference. The feasibility of the proposed strategy is further verified through simulations, and the results show that after adopting the smooth switching strategy, the system operates with continuous and smooth current during the switching process, with no significant overshoot, enhancing system stability and safety. This research provides an effective control scheme for achieving high efficiency and low-stress operation in WPT systems across a wide power range.

AB - This paper addresses the issue of maintaining high efficiency in the inverter power supply of wireless power transfer (WPT) systems across a wide power range. A smooth transition switching strategy is proposed, which optimizes the modulation method of the driving signal to achieve seamless switching between full-bridge (FB) and half-bridge (HB) modes. This effectively suppresses current surges and electromagnetic interference. The feasibility of the proposed strategy is further verified through simulations, and the results show that after adopting the smooth switching strategy, the system operates with continuous and smooth current during the switching process, with no significant overshoot, enhancing system stability and safety. This research provides an effective control scheme for achieving high efficiency and low-stress operation in WPT systems across a wide power range.

KW - inverter

KW - mode switching

KW - wireless power transfer

UR - https://www.scopus.com/pages/publications/105036277460

U2 - 10.1109/ACEPE67873.2025.11405526

DO - 10.1109/ACEPE67873.2025.11405526

M3 - 会议稿件

AN - SCOPUS:105036277460

T3 - 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025

BT - 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025

A2 - Wen, Fushuan

A2 - Gao, Fei

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025

Y2 - 12 December 2025 through 14 December 2025

ER -

Liu G, Lei Y, Gao X, Qu J, Wu D, Lin S et al. Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters. In Wen F, Gao F, editors, 2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025. Institute of Electrical and Electronics Engineers Inc. 2025. (2025 2nd Asia Conference on Advances in Electrical and Power Engineering, ACEPE 2025). doi: 10.1109/ACEPE67873.2025.11405526

Optimization of the Switching Process in a Hybrid Control Strategy for WPT System Inverters

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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