Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil

Cang Liang; Renjie Zhang; Huan Yuan; Aijun Yang; Xiaohua Wang; Mingzhe Rong; Ting Liu

doi:10.1007/978-981-19-1532-1_70

Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil

Cang Liang
, Renjie Zhang
, Huan Yuan
, Aijun Yang
, Xiaohua Wang
, Mingzhe Rong
, Ting Liu

School of Electrical Engineering

Xi'an Jiaotong University

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

Abstract

This paper mainly analyzes the power flow of improved DD coil at transmitting side. Under the improved DD coil structure, a middle line is used to connect parallel pairs of planar coils, and a pair of coil pairs are placed to form a cube, so that the mutual inductance between the transmitting coils is minimized, and each pair of transmitting coils has the same polarity. Through adjusting phase and amplitude of transmitting side, the alternating magnetic flux can flow in the confined space, and the Rx coil can pick up energy stably and efficiently at any angle of the center point. The circuit model of the omnidirectional wireless energy transmission system is mathematically analyzed. The results shown that under the excitation current quadrature amplitude modulation, the power flow of different transmitting coils changes sinusoidally, while the total power of the transmitting end remains unchanged. Experimental results in 2D space verify such change trend of power flow.

Original language	English
Title of host publication	The proceedings of the 16th Annual Conference of China Electrotechnical Society - Volume III
Editors	Jinghan He, Yaohua Li, Qingxin Yang, Xidong Liang
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	664-671
Number of pages	8
ISBN (Print)	9789811915314
DOIs	https://doi.org/10.1007/978-981-19-1532-1_70
State	Published - 2022
Event	16th Annual Conference of China Electrotechnical Society, ACCES 2021 - Beijing, China Duration: 24 Sep 2021 → 26 Sep 2021

Publication series

Name	Lecture Notes in Electrical Engineering
Volume	891 LNEE
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	16th Annual Conference of China Electrotechnical Society, ACCES 2021
Country/Territory	China
City	Beijing
Period	24/09/21 → 26/09/21

Keywords

Improved DD coils
Omnidirectional WPT
Power flow
Quadrature amplitude modulation

Access to Document

10.1007/978-981-19-1532-1_70

Cite this

Liang, C., Zhang, R., Yuan, H., Yang, A., Wang, X., Rong, M., & Liu, T. (2022). Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil. In J. He, Y. Li, Q. Yang, & X. Liang (Eds.), The proceedings of the 16th Annual Conference of China Electrotechnical Society - Volume III (pp. 664-671). (Lecture Notes in Electrical Engineering; Vol. 891 LNEE). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-981-19-1532-1_70

Liang, Cang ; Zhang, Renjie ; Yuan, Huan et al. / Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil. The proceedings of the 16th Annual Conference of China Electrotechnical Society - Volume III. editor / Jinghan He ; Yaohua Li ; Qingxin Yang ; Xidong Liang. Springer Science and Business Media Deutschland GmbH, 2022. pp. 664-671 (Lecture Notes in Electrical Engineering).

@inproceedings{f9670289bec840cea0253a224015396d,

title = "Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil",

abstract = "This paper mainly analyzes the power flow of improved DD coil at transmitting side. Under the improved DD coil structure, a middle line is used to connect parallel pairs of planar coils, and a pair of coil pairs are placed to form a cube, so that the mutual inductance between the transmitting coils is minimized, and each pair of transmitting coils has the same polarity. Through adjusting phase and amplitude of transmitting side, the alternating magnetic flux can flow in the confined space, and the Rx coil can pick up energy stably and efficiently at any angle of the center point. The circuit model of the omnidirectional wireless energy transmission system is mathematically analyzed. The results shown that under the excitation current quadrature amplitude modulation, the power flow of different transmitting coils changes sinusoidally, while the total power of the transmitting end remains unchanged. Experimental results in 2D space verify such change trend of power flow.",

keywords = "Improved DD coils, Omnidirectional WPT, Power flow, Quadrature amplitude modulation",

author = "Cang Liang and Renjie Zhang and Huan Yuan and Aijun Yang and Xiaohua Wang and Mingzhe Rong and Ting Liu",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.; 16th Annual Conference of China Electrotechnical Society, ACCES 2021 ; Conference date: 24-09-2021 Through 26-09-2021",

year = "2022",

doi = "10.1007/978-981-19-1532-1\_70",

language = "英语",

isbn = "9789811915314",

series = "Lecture Notes in Electrical Engineering",

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

pages = "664--671",

editor = "Jinghan He and Yaohua Li and Qingxin Yang and Xidong Liang",

booktitle = "The proceedings of the 16th Annual Conference of China Electrotechnical Society - Volume III",

}

Liang, C, Zhang, R, Yuan, H , Yang, A , Wang, X , Rong, M & Liu, T 2022, Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil. in J He, Y Li, Q Yang & X Liang (eds), The proceedings of the 16th Annual Conference of China Electrotechnical Society - Volume III. Lecture Notes in Electrical Engineering, vol. 891 LNEE, Springer Science and Business Media Deutschland GmbH, pp. 664-671, 16th Annual Conference of China Electrotechnical Society, ACCES 2021, Beijing, China, 24/09/21. https://doi.org/10.1007/978-981-19-1532-1_70

Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil. / Liang, Cang; Zhang, Renjie; Yuan, Huan et al.
The proceedings of the 16th Annual Conference of China Electrotechnical Society - Volume III. ed. / Jinghan He; Yaohua Li; Qingxin Yang; Xidong Liang. Springer Science and Business Media Deutschland GmbH, 2022. p. 664-671 (Lecture Notes in Electrical Engineering; Vol. 891 LNEE).

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

TY - GEN

T1 - Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil

AU - Liang, Cang

AU - Zhang, Renjie

AU - Yuan, Huan

AU - Yang, Aijun

AU - Wang, Xiaohua

AU - Rong, Mingzhe

AU - Liu, Ting

PY - 2022

Y1 - 2022

N2 - This paper mainly analyzes the power flow of improved DD coil at transmitting side. Under the improved DD coil structure, a middle line is used to connect parallel pairs of planar coils, and a pair of coil pairs are placed to form a cube, so that the mutual inductance between the transmitting coils is minimized, and each pair of transmitting coils has the same polarity. Through adjusting phase and amplitude of transmitting side, the alternating magnetic flux can flow in the confined space, and the Rx coil can pick up energy stably and efficiently at any angle of the center point. The circuit model of the omnidirectional wireless energy transmission system is mathematically analyzed. The results shown that under the excitation current quadrature amplitude modulation, the power flow of different transmitting coils changes sinusoidally, while the total power of the transmitting end remains unchanged. Experimental results in 2D space verify such change trend of power flow.

AB - This paper mainly analyzes the power flow of improved DD coil at transmitting side. Under the improved DD coil structure, a middle line is used to connect parallel pairs of planar coils, and a pair of coil pairs are placed to form a cube, so that the mutual inductance between the transmitting coils is minimized, and each pair of transmitting coils has the same polarity. Through adjusting phase and amplitude of transmitting side, the alternating magnetic flux can flow in the confined space, and the Rx coil can pick up energy stably and efficiently at any angle of the center point. The circuit model of the omnidirectional wireless energy transmission system is mathematically analyzed. The results shown that under the excitation current quadrature amplitude modulation, the power flow of different transmitting coils changes sinusoidally, while the total power of the transmitting end remains unchanged. Experimental results in 2D space verify such change trend of power flow.

KW - Improved DD coils

KW - Omnidirectional WPT

KW - Power flow

KW - Quadrature amplitude modulation

UR - https://www.scopus.com/pages/publications/85129239932

U2 - 10.1007/978-981-19-1532-1_70

DO - 10.1007/978-981-19-1532-1_70

M3 - 会议稿件

AN - SCOPUS:85129239932

SN - 9789811915314

T3 - Lecture Notes in Electrical Engineering

SP - 664

EP - 671

BT - The proceedings of the 16th Annual Conference of China Electrotechnical Society - Volume III

A2 - He, Jinghan

A2 - Li, Yaohua

A2 - Yang, Qingxin

A2 - Liang, Xidong

PB - Springer Science and Business Media Deutschland GmbH

T2 - 16th Annual Conference of China Electrotechnical Society, ACCES 2021

Y2 - 24 September 2021 through 26 September 2021

ER -

Liang C, Zhang R, Yuan H , Yang A , Wang X , Rong M et al. Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil. In He J, Li Y, Yang Q, Liang X, editors, The proceedings of the 16th Annual Conference of China Electrotechnical Society - Volume III. Springer Science and Business Media Deutschland GmbH. 2022. p. 664-671. (Lecture Notes in Electrical Engineering). doi: 10.1007/978-981-19-1532-1_70

Research on Power Flow at Transmitting Side of Omnidirectional Wireless Energy Transmission System Based on Improved DD Coil

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Keywords

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