A Multiple Legs Inverter with Real Time–Reflected Load Detection Used in the Dynamic Wireless Charging System of Electric Vehicles

Yong Tian, Jindong Tian, Dong Li and Shijie Zhou
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Yong Tian: College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
Jindong Tian: College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
Dong Li: College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
Shijie Zhou: College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China

Energies, 2018, vol. 11, issue 5, 1-20

Abstract: Dynamic wireless power transfer is a potentially effective method to solve issues related to the range anxiety of electric vehicles (EVs) and reduce the cost of on-board batteries. A novel multiple legs inverter topology with a reflected load identification method for dynamic EV charging is proposed in this paper. In the proposed circuit topology, several inductor-capacitor-capacitor (LCC) reactive power compensation resonant networks and primary pads are selectively excited through a sole primary converter. Besides, a high-response and simple method for the reflected load identification is proposed to rapidly and precisely detect the EV’s position, providing accurate power regulation reference to the converter. With the proposed method, the system can realize high-response and closed-loop power control precisely without any additional wireless communication and position detection devices. Simulation and experimental results verified the efficiency of the proposed scheme. Additionally, the cost comparison results reveal that the proposed scheme could reduce costs by nearly 78% in comparison with the conventional scheme.

Keywords: wireless power transfer; dynamic wireless charging; reflected load identification; position detection (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 (1)

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