Wireless Power Supply for Small Household Appliances Using Energy Model
Wireless Power Supply for Small Household Appliances Using Energy Model
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DOI：
10.1109/access.2018.2880746
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发表时间：
2018-11
期刊：
影响因子：
3.9
通讯作者：
Xujian Shu;Wenxun Xiao;Bo Zhang
中科院分区：
文献类型：
--
作者：
Xujian Shu;Wenxun Xiao;Bo Zhang
为了解决家用电器供电的安全性和稳定性问题，提出一种基于电磁共振的蓝牙通信家用电器无线供电系统。本文首次提出了无线电力传输系统的能量模型，该模型基于电路方程和变量代入，比耦合模式模型更准确，比电路模型更简单。然后，分析了无线输电系统的输出功率和传输效率的特点，设计并实现了一种小家电无线供电系统。此外，还采用蓝牙通信来实现系统的各种保护功能，增强了系统的安全性和稳定性。实验结果表明，该供电系统实现了48V的稳定输出直流电压和100W的大输出功率，在30cm距离内总效率超过80%。
In order to resolve the safety and stability of the power supply for household appliances, a system of wireless power supply for household appliances with Bluetooth communication based on electromagnetic resonance is proposed. In this paper, the energy model of wireless power transfer system is first proposed, which is based on the circuit equations and variable substitution, more accurate than the coupled-mode model and simpler than the circuit model. Then, the characteristics of output power and transfer efficiency of the wireless power transfer system are analyzed, and a system of wireless power supply for small household appliances has been designed and implemented. Furthermore, Bluetooth communication is applied to achieve various protection functions of the system, therefore enhancing the safety and stability of the system. Experimental results show that this power supply system achieves a stable output dc voltage of 48 V and a large output power of 100 W, the total efficiency is more than 80% within a distance of 30 cm.