基波—谐波双通路并行感应耦合电能传输系统的电磁耦合机构

Electromagnetic Coupler of Inductively Coupled Power Transfer System with Two-path Parallel Transmission of Fundamental Wave and Harmonic Wave

为解决现有基波—谐波双通路并行感应耦合电能传输(ICPT)系统研究采用双通路电磁耦合机构分离式设计导致体积较大、抗偏移特性较差等问题,提出了一种双通路正交DD电磁耦合机构,可实现基波能量通路与谐波能量通路电磁解耦。首先,对该电磁耦合机构的解耦机理进行分析,并利用Maxwell仿真软件对其结构参数进行优化分析,同时给出了优化设计方案,之后对双通路正交DD电磁耦合机构的横向和纵向偏移度进行分析,最终搭建系统实验平台对理论分析进行验证。实验结果表明,该电磁耦合机构发生横向或纵向偏移时,均可实现基波能量通路与谐波能量通路两通路之间的电磁解耦,验证了该电磁耦合机构的可行性与抗偏移特性。

In the existing inductively coupled power transfer（ICPT）system with two-path parallel transmission of fundamental wave and harmonic wave,the electromagnetic couplers of the two path are designed separately,which results in large volume and poor anti-offset characteristics.In order to solve the above problem,this paper proposes an orthogonal DD electromagnetic coupler to realize the electromagnetic decoupling of fundamental energy path and harmonic energy path.Firstly,the decoupling mechanism of the electromagnetic couplers is analyzed.And the structural parameters of the electromagnetic coupler is optimized by using the simulation software Maxwell.Thus an optimal designing scheme is proposed.Then the horizontal and vertical offset degrees of the two-path orthogonal DD electromagnetic coupler are analyzed.Finally,an experimental platform is built to verify the theoretical analysis.The experimental results show that the electromagnetic decoupling between the fundamental energy path and the harmonic energy path can be realized when the offset of electromagnetic coupler is horizontal or vertical.The experimental results verify the feasibility and the anti-offset characteristics of the electromagnetic coupler.