摘要
基于谐振网络互感理论,构建了电动汽车移动无线充电系统的线性变参数（LPV）模型,完整刻画了充电过程中系统的动态变化;进一步给出发射与接收线圈之间互感的计算公式,分析了汽车纵向和横向位置对互感的影响。然后通过仿真分析了互感变化对接收端电流的影响,与现有结果进行对比,LPV模型更能准确描述电动汽车移动对充电过程的显著影响,为移动无线充电系统的控制设计问题提供了基础。尤其当汽车与发射线圈产生较大横向位移时,充电功率降低,对其进行一定的补偿。
Based on the mutual inductance theory for the resonant network,this paper proposes a linear parametervarying model of the on-road wireless charging system of electric vehicles,by which the dynamic process of the system could be completely described.Furthermore,a formula on the computation of mutual inductance between the transmitting and receiving coils is given.The influences of the longitudinal/horizontal position on the mutual inductance are analyzed respectively.Then,the influence of mutual inductance on the current of the receiver is analyzed by simulation.Compared with the existing results,the LPV model can accurately describe the significant influence of the electric vehicle movement on the charging process,and provide the basis for the on-road wireless charging system control problem.Especially when the large horizontal displacement occurs between the car and the transmission coil,the charging power is reduced.A certain degree of compensation is adopted.
作者
马精慧
宋杨
Ma Jinghui;Song Yang(School of Mechatronic Engineering and Automation, Shanghai University,Shanghai 200072, China;Shanghai Key Laboratory of Power Station Automation Technology,Shanghai 200072 ,China)
出处
《电子测量技术》
2018年第4期16-23,共8页
Electronic Measurement Technology
基金
国家自然科学基金(61573237)项目资助
关键词
电动汽车
移动无线充电
线性变参数模型
互感计算
electric vehicles
on-road wireless charging
linear parameter-varying model
mutual inductance calculation
