电源学报

基于线圈切换的PT对称空间无线电能传输系统

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徐兴鹏中国电源学会学生会员 , 郭锋 , 何禧煜

电源学报 | 无线电能传输 2026,24(4): 293-302

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电源学报 |无线电能传输 2026 , 24 (4) : 293 -302

基于线圈切换的PT对称空间无线电能传输系统

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徐兴鹏（1999—　），男，中国电源学会学生会员，硕士研究生。研究方向：无线电能传输技术。E-mail：xingpeng997@mails.swust.edu.cn。

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徐兴鹏（1999—　），男，中国电源学会学生会员，硕士研究生。研究方向：无线电能传输技术。E-mail：xingpeng997@mails.swust.edu.cn。

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何禧煜（2000—　），女，硕士研究生。研究方向：无线电能传输技术。E-mail：hxy1588@mails.swust.edu.cn。

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何禧煜（2000—　），女，硕士研究生。研究方向：无线电能传输技术。E-mail：hxy1588@mails.swust.edu.cn。

徐兴鹏中国电源学会学生会员, 郭锋, 何禧煜

作者信息

西南科技大学信息工程学院，绵阳　621010

通讯作者:

郭锋（1969—　），男，通信作者，博士，教授。研究方向：无线电能传输技术。E-mail：guofen9932@swust.edu.cn。

作者简介:

徐兴鹏（1999—　），男，中国电源学会学生会员，硕士研究生。研究方向：无线电能传输技术。E-mail：xingpeng997@mails.swust.edu.cn。

何禧煜（2000—　），女，硕士研究生。研究方向：无线电能传输技术。E-mail：hxy1588@mails.swust.edu.cn。

PT Symmetric Spatial Wireless Power Transfer System Based on Coil Switching

Xingpeng XU Student Member, CPSS, Feng GUO, Xiyu HE

Affiliations

School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China

出版时间: 2026-04-30 doi: 10.13234/j.issn.2095-2805.2026.4.293

文章导航

摘要

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针对接收线圈角度和位置变化导致负载功率波动和效率降低的问题，提出了1种基于线圈切换的宇称时间PT（parity time）对称空间无线电能传输系统。首先建立了正方体结构数学模型，其特征是6面均配置双层空间螺旋线圈。通过仿真验证在等匝数和半径条件下，双层线圈比传统单层空间螺旋线圈具有更大的电感和耦合性，且设计更紧凑。然后推导了SS补偿在整个耦合区域的工作频率和传输特性，并根据PT对称区域存在频率分叉现象，提出了1种一次侧频率检测的线圈切换策略，以实现不同供电区域的自适应切换。最后进行实验验证，结果表明在接收线圈满足频率条件的三维空间内，负载能够获得稳定18 W功率及80%以上的效率，且功率波动在6.7%内，证实了策略的有效性。

关键词

空间无线电能传输 / 双层空间螺旋线圈 / 线圈切換 / 频率分叉

Abstract

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In response to the challenges posed by fluctuating load power and reduced efficiency due to variations in the angle and position of a receiving coil, a parity time (PT) symmetric spatial wireless power transfer system based on coil switching is proposed. First, the mathematical model of a cubic structure is established, which is endowed with double-layer space spiral coils on all of its six sides. Simulation results verify that under the condition of equivalent turns and radius, the double-layer coil exhibits a larger inductance and a better coupling performance than the single-layer space spiral coil, and the corresponding design is more compact. Second, the operating frequency and transmission characteristics of SS compensation throughout the whole coupling region are derived. Given the frequency splitting phenomenon existing in the PT symmetric region, a primary-side frequency detection coil switching strategy is put forward to enable adaptive switching in different power supply regions. Finally, experimental validation was carried out, and results show that under specific frequency conditions in a three-dimensional space, the receiving coil can consistently maintain a stable power output of 18 W and an efficiency exceeding 80%, with power fluctuations remaining within 6.7%, thereby validating the effectiveness of the proposed strategy.

Key words

Spatial wireless power transfer / double-layer space spiral coil / coil switching / frequency splitting

引用本文

徐兴鹏中国电源学会学生会员, 郭锋, 何禧煜. 基于线圈切换的PT对称空间无线电能传输系统. 电源学报, 2026 , 24 (4) : 293 -302 . DOI: 10.13234/j.issn.2095-2805.2026.4.293

Xingpeng XU, Feng GUO, Xiyu HE. PT Symmetric Spatial Wireless Power Transfer System Based on Coil Switching[J]. Journal of Power Supply, 2026 , 24 (4) : 293 -302 . DOI: 10.13234/j.issn.2095-2805.2026.4.293

参考文献

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2026年第24卷第4期

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文章信息

doi: 10.13234/j.issn.2095-2805.2026.4.293

接收时间：2024-01-23
首发时间：2026-10-29
出版时间：2026-04-30

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收稿日期：2024-01-23
修回日期：2024-03-10
录用日期：2024-03-22

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作者信息

西南科技大学信息工程学院，绵阳　621010

通讯作者:

郭锋（1969—　），男，通信作者，博士，教授。研究方向：无线电能传输技术。E-mail：guofen9932@swust.edu.cn。

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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