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Energies 2018, 11(5), 1275; https://doi.org/10.3390/en11051275

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

College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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Received: 19 March 2018 / Revised: 11 May 2018 / Accepted: 12 May 2018 / Published: 16 May 2018
(This article belongs to the Section Electrical Power and Energy System)
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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. View Full-Text
Keywords: wireless power transfer; dynamic wireless charging; reflected load identification; position detection wireless power transfer; dynamic wireless charging; reflected load identification; position detection
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Tian, Y.; Tian, J.; Li, D.; Zhou, S. A Multiple Legs Inverter with Real Time–Reflected Load Detection Used in the Dynamic Wireless Charging System of Electric Vehicles. Energies 2018, 11, 1275.

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