摘要
现实应用中,特殊的环境无法保障两线圈以零偏移的状态传输电能,为分析线圈偏移对无线充电系统的影响,本文对发射和接收线圈位置发生偏移的情况进行建模、仿真分析。首先搭建磁耦合谐振式无线充电系统的串并结构等效电路,得到系统输出功率和传输效率,并推导出补偿电容值的计算公式。其次分析互感与发射线圈和接收线圈相对位置参数的关系,为下一步仿真建模提供了依据。利用ANSYS Maxwell软件建立三维线圈模型,并将线圈模型导入ANSYS Simplorer进行联合仿真,从而得到系统传输效率与两线圈之间的气隙、中心偏移量和线圈偏转角度的关系曲线,对提高磁耦合谐振式无线充电系统抗偏移能力以及非线性优化的研究有一定帮助。
In practical applications, the special environment makes it impossible for us to ensure that the two coils transmit electric energy in a state of zero offset. In order to analyze the influence of the coil offset on the wireless charging system, this paper carries out modeling and simulation analysis on the deviation of the positions of the transmitting and receiving coils.Firstly, the equivalent circuit of the series parallel structure of the magnetically coupled resonant wireless charging system is built to obtain the system output power and transmission efficiency, and the formula of compensating capacitance value is derived.Secondly, the relationship between mutual inductance and relative position parameters of transmitting coil and receiving coil is analyzed, which provides a basis for simulation modeling in the next step.The three-dimensional coil model was established with the help of ANSYS Maxwell software, and the coil model was imported into ANSYS Simplorer for joint simulation, so as to obtain the relationship curve between the system transmission efficiency and the air gap, center offset and coil deflection angle between the two coils, which is helpful to improve the anti offset ability and nonlinear optimization of the magnetic coupling resonant wireless charging system.
作者
薛天格
刘克诚
Xue Tiange;Liu Kecheng(School of Automation and Electronic Engineering,Qingdao University of Science and Technology,Qingdao 266100,China)
出处
《电子测量技术》
2020年第16期51-55,共5页
Electronic Measurement Technology
关键词
无线充电
磁耦合谐振
联合仿真
传输效率
wireless charging
magnetically coupled resonance
joint simulation
transmission efficiency
作者简介
薛天格,硕士研究生,主要研究方向为电力电子与电力传动。E-mail:295182317@qq.com。
