Multi-Load Mode Analysis for Electric Vehicle Wireless Supply System

Cheng Jiang, Yue Sun, Zhihui Wang and Chunsen Tang
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Cheng Jiang: College of Automation, Chongqing University, Chongqing 400044, China
Yue Sun: College of Automation, Chongqing University, Chongqing 400044, China
Zhihui Wang: College of Automation, Chongqing University, Chongqing 400044, China
Chunsen Tang: College of Automation, Chongqing University, Chongqing 400044, China

Energies, 2018, vol. 11, issue 8, 1-11

Abstract: When electric vehicles (EVs) run on the wireless power supply coils, the multi-load working mode will appear, showing that that more than one EV is collecting energy from one coil. Aiming at the stability problem of multi-load mode, this paper mainly analyzes how the number of loads influences the system stability and defines the boundary condition of the load quantity. Meanwhile, an L -shaped coil structure and the T -shaped magnetic core structure are proposed to solve the problem of coil breakdown for high-power supply situations. The proposed structures effectively reduce the supply coils’ self-inductance on the premise of guaranteeing the power transfer, and ensure the security of the multi-load system. At last, the validity of theoretical analysis is verified by simulations and experiments.

Keywords: wireless power transfer; electric vehicle; multi-load; magnetic coupler (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: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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