A Dynamic Wireless Charging System with a Robust Output Voltage Respect to Misalignment
A Dynamic Wireless Charging System with a Robust Output Voltage Respect to Misalignment
复制标题
动态无线充电系统，具有针对错位的稳健输出电压
DOI：
10.1109/wow45936.2019.9030640
复制
发表时间：
2019
期刊：
影响因子：
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通讯作者：
M. Narimani
中科院分区：
文献类型：
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作者：
A. Ramezani;M. Narimani
在动态无线充电应用中，次级侧线圈和初级侧线圈的互感是时间相关变量。因此，车辆侧线圈上的感应电压将随着互感的变化而变化。本文分析了LCC-S补偿拓扑中耦合系数k的变化对输出电压的影响，并定义了灵敏度函数。为了减小k的变化对输出电压和效率的影响，定义了一个优化问题。此外，为了实现高效率的一个广泛的k，所需的约束被认为是在问题中。以500 W/85 kHz系统为例进行了优化设计，仿真了不同耦合系数下输出电压的变化。通过实验测量验证了设计的有效性。
In a dynamic wireless charging application, the mutual inductance of the secondary side coil and primary side coils is a time-dependent variable. Therefore, the induced voltage on the vehicle side coil will be changed by the variation of the mutual inductance. In this paper, the effect of the coupling factor (k) variation on the output voltage of an LCC-S compensated topology is analyzed and sensitivity function is defined. In order to reduce the effect of the variation of k on the output voltage and efficiency, an optimization problem is defined. Moreover, to achieve high efficiency for a wide range of k, desired constraints are considered in the problem. As a case study, a 500 W/85 kHz system is optimized and variation of the output voltage under different coupling factors are simulated. The effectiveness of the design is validated by experimental measurements.