The repeaters in cascade structure can be used to suppress the cross coupling between the nonadjacent repeaters in multiload inductive power transfer (ML-IPT) system. In this article, the cascade repeaters used in the ML-IPT system work both as power transmitters and load carriers. Based on the cascade scheme, the system models of two ML-IPT systems with single-excitation (SE) scheme for different load position are established and high-order compensations are designed to achieve constant load currents. Referring to the topologies of the two ML-IPT systems with SE scheme, a bilateral-excitation (BE) scheme is further proposed to improve output currents and system reliability, and the comparison of the conventional scheme and the proposed scheme is also presented. Finally, a prototype of ML-IPT system with the proposed BE scheme is built, where the maximum deviation of the output currents is less than 13% and the maximum power transfer efficiency reaches 89.2% for an eight-load case.

中文翻译：

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采用双边励磁方案的多负载感应电能传输系统的设计与分析


级联结构的中继器可用于抑制多负载感应电能传输（ML-IPT）系统中非相邻中继器之间的交叉耦合。在本文中，ML-IPT 系统中使用的级联中继器既充当电力发射器又充当负载载体。基于级联方案，建立了不同负载位置的两个单励磁（SE）方案ML-IPT系统的系统模型，并设计了高阶补偿以实现恒定负载电流。参考两种采用SE方案的ML-IPT系统的拓扑结构，进一步提出了双边励磁（BE）方案以提高输出电流和系统可靠性，并且还对传统方案和所提出的方案进行了比较。最后，建立了采用所提出的 BE 方案的 ML-IPT 系统原型，在八个负载的情况下，输出电流的最大偏差小于 13%，最大功率传输效率达到 89.2%。