Wireless charging technology for UAV based on parity-time symmetry

ZHENG Cuichong; XIAO Wenxun; TANG Zheren

doi:10.13471/j.cnki.acta.snus.2022B021

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Wireless charging technology for UAV based on parity-time symmetry

Research articles | 更新时间：2023-11-01

- Wireless charging technology for UAV based on parity-time symmetry
- Acta Scientiarum Naturalium Universitatis Sunyatseni Vol. 61, Issue 6, Pages: 151-157(2022)
- 作者机构：
  
  华南理工大学电力学院，广东广州 510640
- 作者简介：
- 基金信息：
- DOI：10.13471/j.cnki.acta.snus.2022B021
  CLC： TM724
- Published：25 November 2022，
  
  Published Online：20 April 2022，
  
  Received：08 March 2022，
  
  Accepted：18 March 2022
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郑萃翀,肖文勋,唐哲人.基于宇称时间对称原理的无人机无线充电技术[J].中山大学学报(自然科学版),2022,61(06):151-157.

ZHENG Cuichong,XIAO Wenxun,TANG Zheren.Wireless charging technology for UAV based on parity-time symmetry[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2022,61(06):151-157.
郑萃翀,肖文勋,唐哲人.基于宇称时间对称原理的无人机无线充电技术[J].中山大学学报(自然科学版),2022,61(06):151-157. DOI： 10.13471/j.cnki.acta.snus.2022B021.

ZHENG Cuichong,XIAO Wenxun,TANG Zheren.Wireless charging technology for UAV based on parity-time symmetry[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2022,61(06):151-157. DOI： 10.13471/j.cnki.acta.snus.2022B021.

摘要

针对带锂电池负载的无人机无线充电系统轻量化和大偏移容忍度的需求，提出一种基于宇称时间对称原理（PT对称，parity-time symmetry）的无线充电原边控制技术，该控制方法不需要通信及副边控制，简化了拾取端结构。首先，利用电路理论对PT对称无线电能传输系统进行建模；其次，提出了锂电池分段式充电原边控制算法，阐明了控制流程；最后，搭建了实验样机，验证了原边控制的可行性。结果表明，系统可以在错位80 mm以上的范围内对65 W无人机实现1C快充，最高充电效率约90%。

Abstract

Aiming at the requirements of lightweight and large offset tolerance of UAV wireless charging system with lithium battery load， a wireless charging primary-side control technology based on parity-time symmetry is proposed. This control method does not need communication and secondary side control， and simplifies the structure of the pickup end. First of all， the PT symmetric wireless charging system is modeled by using circuit theory. Next， the primary side control algorithm of lithium battery segmented charging is proposed， and the control flow is clarified. Finally， an experimental prototype is built to verify the feasibility of primary side control. The system can realize 1C fast charging of 65 W UAV within the range of dislocation of more than 80 mm， and the maximum charging efficiency is about 90%.

关键词

无人机无线充电宇称时间对称锂电池分段式充电

Keywords

unmanned aerial vehiclewireless chargingparity-time symmetrysectional charging of lithium battery

references

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Related Author

ZHENG Cuichong

XIAO Wenxun

TANG Zheren

LI Bo

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Related Institution

College of Electric Power， South China University of Technology

College of Information Science and Technology∥

Unmanned Aerial Vehicle Research Department, Nanjing University ofAeronautics and Astronautics

南京航空航天大学无人机研究院

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