Detuning Estimation of Pickup Loop in Capacitive Wireless Power Transfer System Based on Secondary-side Decoupled Capacitive Coupler

ZHOU Wei; ZHENG Yufeng; CHEN Zelin; LI Zhiqiang; YI Yuntian; MAI Ruikun

doi:10.7500/AEPS20230515003

您当前的位置：

首页 >

文章列表页 >

Detuning Estimation of Pickup Loop in Capacitive Wireless Power Transfer System Based on Secondary-side Decoupled Capacitive Coupler

Application Research | 更新时间：2025-06-16

- Detuning Estimation of Pickup Loop in Capacitive Wireless Power Transfer System Based on Secondary-side Decoupled Capacitive Coupler
- Automation of Electric Power Systems Vol. 48, Issue 3, Pages: 142-149(2024)
- 作者机构：
  
  西南交通大学电气工程学院，四川省成都市 611756
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(U22A20222A)
- DOI：10.7500/AEPS20230515003
  CLC：
- Received：15 May 2023，
  
  Revised：2023-09-12，
  
  Published Online：06 November 2023，
  
  Published：10 February 2024
- 稿件说明：
移动端阅览
周玮,郑宇锋,陈泽林等.基于副边解耦极板的电容式无线电能传输系统拾取端失谐评估[J].电力系统自动化,2024,48(3):142-149.

ZHOU Wei,ZHENG Yufeng,CHEN Zelin,et al.Detuning Estimation of Pickup Loop in Capacitive Wireless Power Transfer System Based on Secondary-side Decoupled Capacitive Coupler[J].Automation of Electric Power Systems,2024,48(3):142-149.
周玮,郑宇锋,陈泽林等.基于副边解耦极板的电容式无线电能传输系统拾取端失谐评估[J].电力系统自动化,2024,48(3):142-149. DOI： 10.7500/AEPS20230515003.

ZHOU Wei,ZHENG Yufeng,CHEN Zelin,et al.Detuning Estimation of Pickup Loop in Capacitive Wireless Power Transfer System Based on Secondary-side Decoupled Capacitive Coupler[J].Automation of Electric Power Systems,2024,48(3):142-149. DOI： 10.7500/AEPS20230515003.

摘要

对于电容式无线电能传输(CWPT)系统，准确评估拾取端回路的失谐程度是维持系统谐振稳定的前提。然而，由于系统拾取端的感应电压无法被直接观测，难以通过测量感应电压和回路电流间的相位差来评估拾取端回路的失谐程度。文中提出一种能够间接测量拾取端感应电压相位信息，评估拾取端回路失谐程度的CWPT系统。基于Z参数建立三端口CWPT系统的数学模型和等效电路，并依托该模型提出一种基于副边解耦极板的耦合机构。分析在感应电压测量和失谐程度评估过程中存在的误差，提出拾取端回路失谐程度的评估校正方法。搭建了带有副边解耦极板的CWPT系统原理样机，实验结果表明，拾取端谐振时的失谐程度评估误差不超过1 Ω，拾取端感性/容性失谐时的失谐程度评估误差分别小于2%和5%。

Abstract

For the capacitive wireless power transfer (CWPT) system

the accurate estimation of the pickup detuning degree is the premise for the system to maintain resonance. However

because the induced voltage at the pickup loop of the system cannot be directly observed

it is difficult to estimate the detuning degree of the pickup loop by measuring the phase difference between the induced voltage and the loop current. A CWPT system for indirectly measuring the phase information of the induced voltage at the pickup loop is presented and the detuning degree of the pickup loop is evaluated. Based on the Z parameters

the mathematical model and equivalent circuit of the three-port CWPT system are established. Based on the model

a secondary-side decoupled capacitive coupler is proposed. The errors in the measurement of induced voltage and the estimation of detuning degree are analyzed

and the correction method for the detuning degree of the pickup loop is proposed. A prototype of the proposed CWPT system with secondary-side decoupled coupler is constructed. Experimental results indicate that the estimation error of the detuning degree shall not exceed 1 Ω when the pickup fully tunes

and the estimation error of the detuning degree under the inductive detuning and capacitive detuning conditions shall be less than 2% and 5%

respectively.

关键词

Keywords

references

谢诗云，苏玉刚，陈龙，等 . 基于双侧F-LCLC网络的恒压型电场耦合无线电能传输系统［J］. 电力系统自动化， 2017 ， 41 （ 17 ）： 134 - 141 .

XIE Shiyun ， SU Yugang ， CHEN Long ， et al . Constant-voltage electric-field coupled wireless power transfer system based on double-sided F-LCLC networks ［J］. Automation of Electric Power Systems ， 2017 ， 41 （ 17 ）： 134 - 141 .

PARK C ， PARK J ， SHIN Y ， et al . Separated circular capacitive coupler for reducing cross-coupling capacitance in drone wireless power transfer system ［J］. IEEE Transactions on Microwave Theory and Techniques ， 2020 ， 68 （ 9 ）： 3978 - 3985 .

廖志娟，周磊，吴镇，等 . 变结构LC-CLCL拓扑恒压恒流型电场耦合电能传输系统［J］. 中国电机工程学报， 2021 ， 41 （ 17 ）： 6039 - 6050 .

LIAO Zhijuan ， ZHOU Lei ， WU Zhen ， et al . An electric-field coupled power transfer system with constant voltage and constant current output based on changeable LC-CLCL resonant circuit ［J］. Proceedings of the CSEE ， 2021 ， 41 （ 17 ）： 6039 - 6050 .

ZHOU W ， GAO Q ， MAI R K ， et al . Design and analysis of a CPT system with extendable pairs of electric field couplers ［J］. IEEE Transactions on Power Electronics ， 2022 ， 37 （ 6 ）： 7443 - 7455 .

LU F ， ZHANG H ， MI C . A two-plate capacitive wireless power transfer system for electric vehicle charging applications ［J］. IEEE Transactions on Power Electronics ， 2018 ， 33 （ 2 ）： 964 - 969 .

YANG L ， FENG B X ， ZHANG Y Q ， et al . Single wire capacitive wireless power transfer system for wearable biomedical sensors based on flexible graphene film material ［J］. IEEE Transactions on Biomedical Circuits and Systems ， 2022 ， 16 （ 6 ）： 1337 - 1347 .

苏玉刚，钱林俊，刘哲，等 . 水下具有旋转耦合机构的电场耦合无线电能传输系统及参数优化方法［J］. 电工技术学报， 2022 ， 37 （ 10 ）： 2399 - 2410 .

SU Yugang ， QIAN Linjun ， LIU Zhe ， et al . Underwater electric-filed coupled wireless power transfer system with rotary coupler and parameter optimization method ［J］. Transactions of China Electrotechnical Society ， 2022 ， 37 （ 10 ）： 2399 - 2410 .

郭历谋，罗博，麦瑞坤 . 基于电场耦合式的电动汽车无线充电技术电压优化方法［J］. 电工技术学报， 2020 ， 35 （增刊1 ）： 19 - 27 .

GUO Limou ， LUO Bo ， MAI Ruikun . Voltage optimization method for wireless charging of electric vehicles based on capacitive power transfer ［J］. Transactions of China Electrotechnical Society ， 2020 ， 35 （ Supplement 1 ）： 19 - 27 .

ZHANG H ， LU F . An improved design methodology of the double-sided LC-compensated CPT system considering the inductance detuning ［J］. IEEE Transactions on Power Electronics ， 2019 ， 34 （ 11 ）： 11396 - 11406 .

胡杰，陈丽华，罗博，等 . 基于全耦合电容模型的双发射电场耦合式无线电能传输系统［J］. 电工技术学报， 2019 ， 34 （ 17 ）： 3542 - 3551 .

HU Jie ， CHEN Lihua ， LUO Bo ， et al . Electric field coupled power transmission system with dual transmitting terminals based on full-capacitive coupling model ［J］. Transactions of China Electrotechnical Society ， 2019 ， 34 （ 17 ）： 3542 - 3551 .

LI S Q ， LIU Z ， ZHAO H ， et al . Wireless power transfer by electric field resonance and its application in dynamic charging ［J］. IEEE Transactions on Industrial Electronics ， 2016 ， 63 （ 10 ）： 6602 - 6612 .

武帅，陈星维，孟祥尧，等 . 具有强抗偏移及轻量化特性的电场耦合式无人机无线电能传输系统［J］. 中国电机工程学报， 2023 ， 43 （ 6 ）： 2404 - 2413 .

WU Shuai ， CHEN Xingwei ， MENG Xiangyao ， et al . Electric-field coupled wireless power transfer system with misalignment-tolerance and light-weight characteristics for unmanned aerial vehicle applications ［J］. Proceedings of the CSEE ， 2023 ， 43 （ 6 ）： 2404 - 2413 .

QING X D ， SU Y G ， HU A P ， et al . Dual-loop control method for CPT system under coupling misalignments and load variations ［J］. IEEE Journal of Emerging and Selected Topics in Power Electronics ， 2022 ， 10 （ 4 ）： 4902 - 4912 .

苏玉刚，吴学颖，赵鱼名，等 . 互补对称式LCC谐振网络的电场耦合式无线电能传输系统参数优化［J］. 电工技术学报， 2019 ， 34 （ 14 ）： 2874 - 2883 .

SU Yugang ， WU Xueying ， ZHAO Yuming ， et al . Parameter optimization of electric-field coupled wireless power transfer system with complementary symmetric LCC resonant network ［J］. Transactions of China Electrotechnical Society ， 2019 ， 34 （ 14 ）： 2874 - 2883 .

FU M F ， TANG Z F ， MA C B . Analysis and optimized design of compensation capacitors for a megahertz WPT system using full-bridge rectifier ［J］. IEEE Transactions on Industrial Informatics ， 2019 ， 15 （ 1 ）： 95 - 104 .

LILLHOLM M B ， DOU Y ， CHEN X ， et al . Analysis and design of 10-MHz capacitive power transfer with multiple independent outputs for low-power portable devices ［J］. IEEE Journal of Emerging and Selected Topics in Power Electronics ， 2022 ， 10 （ 1 ）： 149 - 159 .

胡秀芳，王跃，吕双庆，等 . 基于谐波状态空间的无线电能传输系统建模和稳定性分析［J］. 电力系统自动化， 2022 ， 46 （ 11 ）： 121 - 130 .

HU Xiufang ， WANG Yue ， LYU Shuangqing ， et al . Modeling and stability analysis of wireless power transfer system based on harmonic state space ［J］. Automation of Electric Power Systems ， 2022 ， 46 （ 11 ）： 121 - 130 .

ABRAMOV E ， PERETZ M M . Multi-loop control for power transfer regulation in capacitive wireless systems by means of variable matching networks ［J］. IEEE Journal of Emerging and Selected Topics in Power Electronics ， 2020 ， 8 （ 3 ）： 2095 - 2110 .

LI W H ， WEI G ， CUI C ， et al . A double-side self-tuning LCC/S system using a variable switched capacitor based on parameter recognition ［J］. IEEE Transactions on Industrial Electronics ， 2021 ， 68 （ 4 ）： 3069 - 3078 .

SONG K ， YANG G ， ZHANG H ， et al . An impedance decoupling-based tuning scheme for wireless power transfer system under dual-side capacitance drift ［J］. IEEE Transactions on Power Electronics ， 2021 ， 36 （ 7 ）： 7526 - 7536 .

THRIMAWITHANA D J ， MADAWALA U K ， NEATH M . A synchronization technique for bidirectional IPT systems ［J］. IEEE Transactions on Industrial Electronics ， 2013 ， 60 （ 1 ）： 301 - 309 .

ZHOU W ， HUANG L ， LUO B ， et al . A general mutual coupling model of MIMO capacitive coupling interface with arbitrary number of ports ［J］. IEEE Transactions on Power Electronics ， 2021 ， 36 （ 6 ）： 6163 - 6167 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Constant-current/Constant-voltage Output Method for Wireless Power Transfer System Based on Multi-relay Coil Structure

Modeling and Stability Analysis of Wireless Power Transfer System Based on Harmonic State Space

Proposal Process and Research Progress of Fractional-order Wireless Power Transfer Mechanism

Real Eigenstate Operating Modes and Energy Efficiency Characteristic Analysis of Magnetic Coupling Wireless Power Transfer System

Related Author

CHEN Yang

YANG Bin

LI Yiyang

CHEN Yonghong

Yiyang LI

Yonghong CHEN

Bin YANG

Yang CHEN

Related Institution

School of Electrical Engineering, Xi'an Jiaotong University

School of Electric Power, South China University of Technology

School of Electrical Engineering and Automation, Fuzhou University

School of Electrical and Power Engineering, China University of Mining and Technology

College of Automation, Chongqing University

⁰