A Power and Data Decoupled Transmission Method for Wireless Power Transfer Systems via a Shared Inductive Link

被引：14
|
作者：
Li, Xiaofei [1 ]
Wang, Haichao [2 ]
Dai, Xin [1 ,3 ]
机构：
[1] Chongqing Univ, Sch Automat, Chongqing 400044, Peoples R China
[2] Chongqing Sci & Technol Res Inst, Chongqing 401123, Peoples R China
[3] Chinese Acad Sci, Shenyang Inst Automat, State Key Lab Robot, Shenyang 110016, Liaoning, Peoples R China
来源：
ENERGIES | 2018年 / 11卷 / 08期
基金：
中国国家自然科学基金;
关键词：
wireless power transfer; data transmission; hysteresis control; signal to noise ratio (SNR); TRACKING;
D O I：
10.3390/en11082161
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Wireless Power Transfer (WPT) technology is gaining global popularity. However, in some applications, data transmission is also required to monitor the load states. This paper presents an alternative wireless power and data transmission method via the shared inductive link. With the method, the system presents three characteristics: (1) controllability and stability of the output voltage; (2) miniaturization in volume of the system; (3) decoupled transmission of power and data. The output voltage control is realized by a non-inductive hysteresis control method. In particular, data is transferred when the power transmission is blocked (i.e., the hysteresis switch is off). The interference between power and data transmission is very small. The signal to noise ratio (SNR) performance which is relevant to the interference from power transfer to data transfer and data transfer capacity, is studied and optimized. Both simulation and experimental results have verified the proposed method.
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收藏
页数：14
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