A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System

Xin Gao; Haotian Zhang; Baichuan Zhang; Wenjing Wang; Shaoshuan Qi; Kui Yan; Jiantao Zhang; Chunbo Zhu

doi:10.1007/978-981-95-7652-4_48

A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System

Xin Gao
, Haotian Zhang
, Baichuan Zhang
, Wenjing Wang
, Shaoshuan Qi
, Kui Yan
, Jiantao Zhang
, Chunbo Zhu^*

^*Corresponding author for this work

School of Electrical Engineering and Automation

School of Electrical Engineering and Automation, Harbin Institute of Technology
Harbin Institute of Technology
Shanghai Institute of Satellite Engineering

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

Abstract

In low-voltage input constant-power wireless power transfer (WPT) systems, impedance matching between the uncontrolled rectifier circuit and BUCK circuit at the receiver end enables both efficiency optimization in the coupling mechanism and stable charging voltage. However, the transmitter power supply typically employs a two-phase interleaved parallel BOOST and high-frequency phase-shifted inverter combination to reduce coil current, making efficiency improvement crucial. To enhance transmitter efficiency, a state-space averaging method establishes a parasitic parameter-considered model, analyzing the relationship between transmitter efficiency and phase shift angle/duty cycle. Theoretical analysis confirms the existence of an optimal efficiency solution. Subsequently, a multi-variable disturbance observation control-based energy efficiency optimization algorithm is designed to achieve decoupling between primary and secondary side controls. Finally, an experimental platform for low-voltage WPT systems was constructed, demonstrating 92.47% overall system efficiency with 2.4% improvement before and after algorithm implementation, validating the algorithm’s feasibility.

Original language	English
Title of host publication	The Proceedings of the 20th Annual Conference of China Electrotechnical Society
Editors	Qingxin Yang, Dianguo Xu, Xuerong Ye, Qiuyue Nie, Yueshi Guan
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	455-463
Number of pages	9
ISBN (Print)	9789819576517
DOIs	https://doi.org/10.1007/978-981-95-7652-4_48
State	Published - 2026
Event	20th Annual Conference of China Electrotechnical Society, ACCES 2025 - Harbin, China Duration: 19 Sep 2025 → 21 Sep 2025

Publication series

Name	Lecture Notes in Electrical Engineering
Volume	1581 LNEE
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	20th Annual Conference of China Electrotechnical Society, ACCES 2025
Country/Territory	China
City	Harbin
Period	19/09/25 → 21/09/25

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Energy efficiency optimization
High-frequency phase-shift inverter
Impedance matching
Interleaved parallel BOOST
Multivariable disturbance and observation control

Access to Document

10.1007/978-981-95-7652-4_48

Cite this

Gao, X., Zhang, H., Zhang, B., Wang, W., Qi, S., Yan, K., Zhang, J., & Zhu, C. (2026). A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System. In Q. Yang, D. Xu, X. Ye, Q. Nie, & Y. Guan (Eds.), The Proceedings of the 20th Annual Conference of China Electrotechnical Society (pp. 455-463). (Lecture Notes in Electrical Engineering; Vol. 1581 LNEE). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-95-7652-4_48

Gao, Xin ; Zhang, Haotian ; Zhang, Baichuan et al. / A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System. The Proceedings of the 20th Annual Conference of China Electrotechnical Society. editor / Qingxin Yang ; Dianguo Xu ; Xuerong Ye ; Qiuyue Nie ; Yueshi Guan. Springer Science and Business Media Deutschland GmbH, 2026. pp. 455-463 (Lecture Notes in Electrical Engineering).

@inproceedings{5354ef9fbc9b4950a7ec974f9ec49f09,

title = "A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System",

abstract = "In low-voltage input constant-power wireless power transfer (WPT) systems, impedance matching between the uncontrolled rectifier circuit and BUCK circuit at the receiver end enables both efficiency optimization in the coupling mechanism and stable charging voltage. However, the transmitter power supply typically employs a two-phase interleaved parallel BOOST and high-frequency phase-shifted inverter combination to reduce coil current, making efficiency improvement crucial. To enhance transmitter efficiency, a state-space averaging method establishes a parasitic parameter-considered model, analyzing the relationship between transmitter efficiency and phase shift angle/duty cycle. Theoretical analysis confirms the existence of an optimal efficiency solution. Subsequently, a multi-variable disturbance observation control-based energy efficiency optimization algorithm is designed to achieve decoupling between primary and secondary side controls. Finally, an experimental platform for low-voltage WPT systems was constructed, demonstrating 92.47\% overall system efficiency with 2.4\% improvement before and after algorithm implementation, validating the algorithm{\textquoteright}s feasibility.",

keywords = "Energy efficiency optimization, High-frequency phase-shift inverter, Impedance matching, Interleaved parallel BOOST, Multivariable disturbance and observation control",

author = "Xin Gao and Haotian Zhang and Baichuan Zhang and Wenjing Wang and Shaoshuan Qi and Kui Yan and Jiantao Zhang and Chunbo Zhu",

note = "Publisher Copyright: {\textcopyright} Beijing Paike Culture Commu. Co., Ltd. 2026.; 20th Annual Conference of China Electrotechnical Society, ACCES 2025 ; Conference date: 19-09-2025 Through 21-09-2025",

year = "2026",

doi = "10.1007/978-981-95-7652-4\_48",

language = "英语",

isbn = "9789819576517",

series = "Lecture Notes in Electrical Engineering",

publisher = "Springer Science and Business Media Deutschland GmbH",

pages = "455--463",

editor = "Qingxin Yang and Dianguo Xu and Xuerong Ye and Qiuyue Nie and Yueshi Guan",

booktitle = "The Proceedings of the 20th Annual Conference of China Electrotechnical Society",

address = "德国",

}

Gao, X, Zhang, H, Zhang, B, Wang, W, Qi, S, Yan, K, Zhang, J & Zhu, C 2026, A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System. in Q Yang, D Xu, X Ye, Q Nie & Y Guan (eds), The Proceedings of the 20th Annual Conference of China Electrotechnical Society. Lecture Notes in Electrical Engineering, vol. 1581 LNEE, Springer Science and Business Media Deutschland GmbH, pp. 455-463, 20th Annual Conference of China Electrotechnical Society, ACCES 2025, Harbin, China, 19/09/25. https://doi.org/10.1007/978-981-95-7652-4_48

A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System. / Gao, Xin; Zhang, Haotian; Zhang, Baichuan et al.
The Proceedings of the 20th Annual Conference of China Electrotechnical Society. ed. / Qingxin Yang; Dianguo Xu; Xuerong Ye; Qiuyue Nie; Yueshi Guan. Springer Science and Business Media Deutschland GmbH, 2026. p. 455-463 (Lecture Notes in Electrical Engineering; Vol. 1581 LNEE).

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

TY - GEN

T1 - A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System

AU - Gao, Xin

AU - Zhang, Haotian

AU - Zhang, Baichuan

AU - Wang, Wenjing

AU - Qi, Shaoshuan

AU - Yan, Kui

AU - Zhang, Jiantao

AU - Zhu, Chunbo

N1 - Publisher Copyright: © Beijing Paike Culture Commu. Co., Ltd. 2026.

PY - 2026

Y1 - 2026

N2 - In low-voltage input constant-power wireless power transfer (WPT) systems, impedance matching between the uncontrolled rectifier circuit and BUCK circuit at the receiver end enables both efficiency optimization in the coupling mechanism and stable charging voltage. However, the transmitter power supply typically employs a two-phase interleaved parallel BOOST and high-frequency phase-shifted inverter combination to reduce coil current, making efficiency improvement crucial. To enhance transmitter efficiency, a state-space averaging method establishes a parasitic parameter-considered model, analyzing the relationship between transmitter efficiency and phase shift angle/duty cycle. Theoretical analysis confirms the existence of an optimal efficiency solution. Subsequently, a multi-variable disturbance observation control-based energy efficiency optimization algorithm is designed to achieve decoupling between primary and secondary side controls. Finally, an experimental platform for low-voltage WPT systems was constructed, demonstrating 92.47% overall system efficiency with 2.4% improvement before and after algorithm implementation, validating the algorithm’s feasibility.

AB - In low-voltage input constant-power wireless power transfer (WPT) systems, impedance matching between the uncontrolled rectifier circuit and BUCK circuit at the receiver end enables both efficiency optimization in the coupling mechanism and stable charging voltage. However, the transmitter power supply typically employs a two-phase interleaved parallel BOOST and high-frequency phase-shifted inverter combination to reduce coil current, making efficiency improvement crucial. To enhance transmitter efficiency, a state-space averaging method establishes a parasitic parameter-considered model, analyzing the relationship between transmitter efficiency and phase shift angle/duty cycle. Theoretical analysis confirms the existence of an optimal efficiency solution. Subsequently, a multi-variable disturbance observation control-based energy efficiency optimization algorithm is designed to achieve decoupling between primary and secondary side controls. Finally, an experimental platform for low-voltage WPT systems was constructed, demonstrating 92.47% overall system efficiency with 2.4% improvement before and after algorithm implementation, validating the algorithm’s feasibility.

KW - Energy efficiency optimization

KW - High-frequency phase-shift inverter

KW - Impedance matching

KW - Interleaved parallel BOOST

KW - Multivariable disturbance and observation control

UR - https://www.scopus.com/pages/publications/105040027794

U2 - 10.1007/978-981-95-7652-4_48

DO - 10.1007/978-981-95-7652-4_48

M3 - 会议稿件

AN - SCOPUS:105040027794

SN - 9789819576517

T3 - Lecture Notes in Electrical Engineering

SP - 455

EP - 463

BT - The Proceedings of the 20th Annual Conference of China Electrotechnical Society

A2 - Yang, Qingxin

A2 - Xu, Dianguo

A2 - Ye, Xuerong

A2 - Nie, Qiuyue

A2 - Guan, Yueshi

PB - Springer Science and Business Media Deutschland GmbH

T2 - 20th Annual Conference of China Electrotechnical Society, ACCES 2025

Y2 - 19 September 2025 through 21 September 2025

ER -

Gao X, Zhang H, Zhang B, Wang W, Qi S, Yan K et al. A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System. In Yang Q, Xu D, Ye X, Nie Q, Guan Y, editors, The Proceedings of the 20th Annual Conference of China Electrotechnical Society. Springer Science and Business Media Deutschland GmbH. 2026. p. 455-463. (Lecture Notes in Electrical Engineering). doi: 10.1007/978-981-95-7652-4_48

A Power Efficiency Optimization Algorithm Based on Multivariate Disturbance And Observation Control in Low Voltage Input WPT System

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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