Optimization Analysis of Coupling Mechanism in Wireless Charging System for Substation Inspection Robot

doi:10.16628/j.cnki.2095-8188.2022.11.004

Abstract

Abstract:

Aiming at the actual needs of the wireless charging system for the substation inspection robot,a multi-relay wireless power transfer scheme is proposed.Based on the optimization probelem of its coupling mechanism,the system model is established and the system efficiency expression is derived.Combining with the internal resistance and mutual inductance formula of the planar spiral coil,the efficiency of the multi-relay WPT system is obtained with respect to number of coil turns,coil radius and coil position.At the same time,taking the dual-relay WPT system as an example,the variation law of the system efficiency with respect to the coupling mechanism is analyzed,and the general coupling mechanism optimization method is obtained under the condition of variable load.Finally,an experimental platform is built to verify the correctness and effectiveness of the proposed optimization method.

Key words: substation inspection robot, wireless power transfer, multi-relay, coupling mechanism, efficiency optimization

CLC Number:

TM724

CHEN Weizhi, XIAO Jing, OUYANG Jin, CHEN Shaonan, GE Can. Optimization Analysis of Coupling Mechanism in Wireless Charging System for Substation Inspection Robot[J]. LOW VOLTAGE APPARATUS, 2022, 0(11): 19-25.

Figures/Tables 17

References 21

[1]	吴理豪, 张波. 电动汽车静态无线充电技术研究综述(上篇)[J]. 电工技术学报, 2020, 35(6):1153-1165.
[2]	王赢聪. 电动汽车新型无线充电策略的动态建模与效率优化[J]. 浙江电力, 2021, 40(1):87-94.
[3]	肖静, 吴宁, 冯玉斌, 等. 电动汽车无线电能传输系统中Buck电路非理想模型及其效率优化[J]. 电器与能效管理技术, 2020(4):77-82,112.
[4]	QU J, HE L, TANG N, et al. Wireless power transfer using domino-resonator for 110-kV power grid online monitoring equipment[J]. IEEE Transactions on Power Electronics, 2020, 35(11):11380-11390. doi: 10.1109/TPEL.2020.2989757
[5]	黄明欣, 唐酿, 盛超, 等. 用于智能监测设备供电的复合绝缘子传能结构[J]. 高电压技术, 2020, 46(2):618-625.
[6]	杜宇维, 赵小令, 吴佳玮, 等. 一种基于杆塔监测设备的新型超声传能供电系统[J]. 高压电器, 2022, 58(7):51-56.
[7]	LU F. A high-efficiency and long-distance power-relay system with equal power distribution[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, 8(2):1419-1427. doi: 10.1109/JESTPE.2019.2898125
[8]	HOU X, SU Y, ZUO Z P, et al. A novel analysis method based on quadratic eigenvalue problem for multirelay magnetic coupling wireless power transfer[J]. IEEE Transactions on Power Electronics, 2021, 36(9):9907-9917. doi: 10.1109/TPEL.2021.3062394
[9]	ZHONG W X, LEE C K, HUI S Y. Wireless power domino-resonator systems with noncoaxial axes and circular structures[J]. IEEE Transactions on Power Electronics, 2012, 27(11):4750-4762. doi: 10.1109/TPEL.2011.2174655
[10]	孙跃. 三线圈ICPT系统中继线圈的位置优化[J]. 电工技术学报, 2016, 31(13):168-175.
[11]	周斌. 三线圈结构的无线电能传输系统优化设计与分析[J]. 广东电力, 2018, 31(11):99-106.
[12]	王维, 黄学良, 周亚龙, 等. 双中继无线电能传输系统建模及传输效率分析[J]. 电工技术学报, 2014, 29(9):1-6.
[13]	黄智慧, 王林, 邹积岩. 双中继和三中继线圈位置参数对无线电能传输功率的影响[J]. 电工技术学报, 2017, 32(5):208-214.
[14]	亢凯, 侯信宇, 左志平, 等. 多中继模式无线电能传输系统建模与传输效率分析[J]. 电器与能效管理技术, 2019(17):50-55.
[15]	LEE J, LEE K. Effects of number of relays on achievable efficiency of magnetic resonant wireless power transfer[J]. IEEE Transactions on Power Electronics, 2020, 35(7):6697-6700. doi: 10.1109/TPEL.2019.2962504
[16]	WEN F, CHU X, LI Q, et al. Receiver localization strategy of wireless charging system based on mutual inductance disturbance[J]. IEEE Transactions on Applied Superconductivity, 2021, 31(8):1-4.
[17]	夏能弘. 基于垂直中继线圈结构的L形无线充电装置设计与优化[J]. 电工技术学报, 2019, 34(13):5-12.
[18]	杨勇. 巡检机器人无线充电最大效率传输方法研究[J]. 自动化仪表, 2020, 41(12):56-59.
[19]	YE Z, SUN Y, DAI X, et al. Energy efficiency analysis of U-coil wireless power transfer system[J]. IEEE Transactions on Power Electronics, 2016, 31(7):4809-4817.
[20]	黄辉, 黄学良, 谭林林, 等. 基于磁场谐振耦合的无线电力传输发射及接收装置的研究[J]. 电工电能新技术, 2011, 30(1):32-35.
[21]	RAJU S, WU R, CHAN M, et al. Modeling of mutual coupling between planar inductors in wireless power applications[J]. IEEE Transactions on Power Electronics, 2013, 29(1):481-490. doi: 10.1109/TPEL.2013.2253334

参数	参数值	参数	参数值
线圈半径/cm	5	线圈自感/μH	11.2
线圈匝数/匝	7	线圈内阻/mΩ	67
线圈间距/cm	10	导线线径/mm	2

参数	参数值	参数	参数值
输入电压/V	24	系统频率/kHz	85
负载电阻/Ω	10	线圈总间距/cm	10