Optimal Resonant Beam Charging for Electronic Vehicles in Internet of Intelligent Vehicles

Published on Feb 1, 2019in IEEE Internet of Things Journal9.52
· DOI :10.1109/JIOT.2018.2872431
Qingqing Zhang2
Estimated H-index: 2
(Tongji University),
Mingqing Liu1
Estimated H-index: 1
(Tongji University)
+ 3 AuthorsPengfei Xia2
Estimated H-index: 2
(Tongji University)
To enable electric vehicles (EVs) to access to the Internet of Intelligent Vehicles (IoIV), charging EVs wirelessly anytime and anywhere becomes an urgent need. The resonant beam charging (RBC) technology can provide high-power and long-range wireless energy for EVs. However, the RBC system is unefficient. To improve the RBC power transmission efficiency, the adaptive RBC (ARBC) technology was introduced. In this paper, after analyzing the modular model of the ARBC system, we obtain the closed-form formula of the end-to-end power transmission efficiency. Then, we prove that the optimal power transmission efficiency uniquely exists. Moreover, we analyze the relationships among the optimal power transmission efficiency, the source power, the output power, and the beam transmission efficiency, which provide the guidelines for the optimal ARBC system design and implementation. Hence, perpetual energy can be supplied to EVs in IoIV virtually.
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