Variable Frequency Controller for Inductive Power Transfer in Dynamic Conditions
Variable Frequency Controller for Inductive Power Transfer in Dynamic Conditions
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DOI：
10.1109/tpel.2016.2555963
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发表时间：
2017-02
影响因子：
6.7
通讯作者：
E. Gati;G. Kampitsis;S. Manias
中科院分区：
文献类型：
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作者：
E. Gati;G. Kampitsis;S. Manias
对于在恶劣环境中和连续运动时为无人机或水下航行器提供动力来说，感应功率传输是一个非常有吸引力的选择。本研究提出一种适用于串联补偿式非接触充电器之变频控制器。控制器真实的跟踪输出电压与负载无关的频率。其标准是将次级电流和初级侧逆变器输出电压之间的相位差调零。控制是由一个锁相环与双方之间的光通信。实验结果1千瓦的原型，功率传输，而在运动中，显示快速的频率响应，沿着与稳定的输出电压，尽管负载的变化。与其他两个固定的操作频率进行比较;初级谐振电路的固有频率和标称间隙处的最大输出功率频率。所提出的控制被证明是上级的输出功率水平和稳定性，以及安全高度失调的条件。
Inductive power transfer is a highly attractive option for powering unmanned aerial or underwater vehicles, in harsh environments and while in continuous motion. This study presents a variable frequency controller for series-series compensated contactless chargers operating in dynamic conditions. The controller tracks, in real time, the frequency for which the output voltage is load independent. The criterion for that is the zeroing of the phase difference between the secondary current and the primary-side inverter output voltage. Control is performed by a phase-locked loop with optical communication between the two sides. Experimental results on a 1-kW prototype, for power transfer while in motion, show fast frequency response, along with steady output voltage, despite load variations. Comparison is performed with two other fixed frequencies of operation; the natural frequency of the primary resonant circuit and the maximum output power frequency at nominal gap. The proposed control is proven superior in terms of output power level and stability, as well as safety to highly misaligned conditions.