Research on an EV Dynamic Wireless Charging Control Method Adapting to Speed Change

Linlin Tan, Wenxuan Zhao, Minghao Ju, Han Liu and Xueliang Huang
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Linlin Tan: Department of Electrical Engineering, Southeast University, NO. 2 Sipailou, Nanjing 210096, China
Wenxuan Zhao: Department of Electrical Engineering, Southeast University, NO. 2 Sipailou, Nanjing 210096, China
Minghao Ju: Shanghai Aerospace Control Technology Institute, No.1555, Zhongchun Road, Minhang District, Shanghai 221116, China
Han Liu: Department of Electrical Engineering, Southeast University, NO. 2 Sipailou, Nanjing 210096, China
Xueliang Huang: Department of Electrical Engineering, Southeast University, NO. 2 Sipailou, Nanjing 210096, China

Energies, 2019, vol. 12, issue 11, 1-13

Abstract: In order to solve the problem of the electric vehicle (EV) charging amount fluctuation caused by the variation of driving speed during dynamic wireless charging, this paper proposes an EV dynamic wireless charging control method adapting to speed change. Firstly, a dynamic wireless charging model based on a long-track transmitting coil is established, and the expression of the charging power of each load under multi-load situation is obtained. Secondly, the influence of the EV charging number and maximum driving speed on the range of system parameters is studied. Subsequently, the method for determining the load resistance value according to the driving speed under a multi-EV charging condition is further discussed. Afterwards, a charging power control method adapting to the speed variation by load adjustment is proposed. By adjusting the equivalent load of the variable-speed charging EV, its speed variation range can reach 20~60 km/h, while the remaining EVs’ charging power fluctuation range can be kept within 10%~15%. Finally, the experimental prototype is built to verify the above-mentioned control method.

Keywords: magnetic resonant; DWPT (Dynamic Wireless Power Transmission); on-road charging; speed variation (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: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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