具有抗偏移恒压输出特性的复合式双频感应电能传输系统研究  

Research on Hybrid Dual-frequency IPT System Against Misalignment With Constant Output Voltage

作　　者：黎祎阳 杨斌 何双江 吕天奇 陈阳[1] 麦瑞坤[1] LI Yiyang;YANG Bin;HE Shuangjiang;LYU Tianqi;CHEN Yang;MAI Ruikun(School of the Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,Sichuan Province,China)

机构地区：[1]西南交通大学电气工程学院,四川省成都市611756

出　　处：《中国电机工程学报》2023年第18期7232-7239,共8页Proceedings of the CSEE

基　　金：国家自然科学基金(面上基金项目)(51977184);中国博士后科学基金项目(2020M683352);深圳市中央引导地方科技发展专项资金项目(2021Szvup122)。

摘　　要：感应电能传输(inductive power transfer,IPT)系统的线圈偏移难以避免,导致系统输出电压平稳性下降。由于全桥逆变器产生方波电压,使谐波难以完全消除。为利用谐波提升系统抗偏移能力,该文设计一种基于基波-谐波并行传输的复合式双频IPT系统,耦合机构接收端选取双极性结构线圈以消除副边线圈间的交叉耦合,结合系统参数设计方法使系统在耦合机构发生偏移的情况下实现自适应恒定电压输出,该系统耦合机构采用单发射双接收结构,较传统基波-谐波并行IPT系统采用双发射双接收的结构所用线材更少,且无需复杂反馈控制。最后,搭建一个200W原理样机验证所提方法正确性和有效性,耦合机构横向偏移33%,同时负载在24~40Φ变化时,系统输出电压波动始终保持在5%以内。The misalignment of the coils is inevitable in inductive power transfer(IPT)system,leading to a decrease in the stability of the system output voltage.Due to the square-wave voltages generated by the full-bridge inverters,the harmonic wave is hard to eliminate.In order to utilize the harmonic wave to enhance the anti-misalignment capacity of the system,this paper proposes a hybrid dual-frequency IPT system based on fundamental and harmonic parallel transmission.The bipolar structure coil is selected to eliminate the cross-coupling between the secondary coils.Combined with the proposed parameter design method,the IPT system can adaptively obtain the constant output voltage with the misalignment.Compared to the traditional fundamentharmonic parallel IPT systems with the dual-transmitter dual-receiver structure,a single-transmitter dual-receiver structure is used to decrease the wire and costs,and complex feedback control is not required.Finally,a 200W prototype is built to verify the validity of the proposed approach.With the 33%x-misalignment and the 24~40Φload variation,the output voltage fluctuation of the IPT system is lower than 5%.

关 键 词：感应电能传输 双频 谐波 并行传输 恒压输出 

分 类 号：TM724[电气工程—电力系统及自动化]