Power Control Strategies of On-Road Charging for Electric Vehicles

Linlin Tan, Jinpeng Guo, Xueliang Huang, Han Liu, Changxin Yan and Wei Wang
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Linlin Tan: Department of Electrical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
Jinpeng Guo: Department of Electrical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
Xueliang Huang: Department of Electrical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
Han Liu: Department of Electrical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
Changxin Yan: Department of Electrical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
Wei Wang: Department of Electrical Engineering, Southeast University, Nanjing 210096, Jiangsu, China

Energies, 2016, vol. 9, issue 7, 1-14

Abstract: On-road charging systems for electric vehicles (EVs) have shown revolutionary potential in extending driving range and reducing battery capacities. The optimal equivalent load resistances to maximize receiving power of each EV according to different EV amounts are investigated. This paper introduces a typical on-road charging system with a single transmitting coil and multiple receiving coils. The equivalent circuit models according to different numbers of EVs are built. Power control strategies with regard to a varying number of EVs are then presented. Specifically, self-adaptive source voltage based on primary current detection is utilized to charge EVs, while the source can support enough EVs by providing the rated power. Otherwise, the source voltage is regulated to its maximum value and the charging energy of each EV is suggested to be controlled by adjusting the individual driving speed. A remarkable feature of the power control strategies is that the charging power for each EV is stable and can compensate for energy losses efficiently. As for urgent power demand from a particular EV with a low battery capacity, the adjustment of the corresponding load resistance is applied to alter the power distribution. The proposed technique has been verified in an experimental prototype.

Keywords: magnetic resonant; on-road charging; power control strategies (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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