This paper presents a wireless power transfer system with a passive boost topology for automatic guided vehicles (AGVs). The system has a transmitter composed of a track coil and arrayed solenoid coils. The solenoid coils amplify the magnetic field and change the currents passively depending on the position of the receiver; they increase the current as the receiver coil approaches. Magnetic field analysis and numerical analysis using equivalent circuit equations display the system characteristics with various parameters. In comparison with a system that contains a transmitter with arrayed solenoid coils connected electrically in series, the proposed system has higher efficiency, less magnetic flux leakage and low-cost implementation. Experiments of wireless power transfer using a prototype of this system confirmed that the proposed system is 18% more efficient than the series solenoid system. The dynamic power transfer test of a moving vehicle revealed that the system successfully transferred a power of 100 W regardless of the receiver position.

中文翻译：

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适用于 AGV 的具有无源升压拓扑的无线功率传输系统


本文提出了一种用于自动引导车辆 (AGV) 的具有无源升压拓扑的无线功率传输系统。该系统有一个由轨道线圈和阵列螺线管线圈组成的发射器。螺线管线圈放大磁场并根据接收器的位置被动地改变电流；当接收器线圈接近时，它们会增加电流。磁场分析和使用等效电路方程的数值分析显示了具有各种参数的系统特性。与包含具有串联电连接的阵列螺线管线圈的发射器的系统相比，所提出的系统具有更高的效率、更少的磁通泄漏和低成本的实施。使用该系统原型进行的无线电力传输实验证实，所提出的系统比串联螺线管系统效率高 18%。移动车辆的动态功率传输测试表明，无论接收器位置如何，系统都能成功传输 100 W 的功率。