Abstract
This paper presents a cost-effectiveness comparison of coupler designs for wireless power transfer (WPT), meant for electric vehicle (EV) dynamic charging. The design comparison of three common types of couplers is first based on the raw material cost, output power, transfer efficiency, tolerance of horizontal offset, and flux density. Then, the optimal cost-effectiveness combination is selected for EV dynamic charging. The corresponding performances of the proposed charging system are compared and analyzed by both simulation and experimentation. The results verify the validity of the proposed dynamic charging system for EVs.
Highlights
Wireless power transfer (WPT) has attracted more and more attention for contactless charging and has been developed significantly for various applications in recent years [1,2,3], such as cell phone charging [4], grid fault detection [5], biomedical implants [6], etc
WPT technologies have been demonstrated to be suitable for complex operating situations [7,8]
Previous research works have investigated different shapes of coil couplers for WPT [14,15,16,17,18]. These works have not discussed the trade-off between the cost and the performance of the dynamic WPT charging system for electric vehicles (EV)
Summary
Wireless power transfer (WPT) has attracted more and more attention for contactless charging and has been developed significantly for various applications in recent years [1,2,3], such as cell phone charging [4], grid fault detection [5], biomedical implants [6], etc. As the study of electric vehicles (EV) has received increasing attention due to environmental considerations, the WPT technique has offered a new strategy for improving the driving experience of EVs. One of the important concerns about EVs is battery drawbacks, such as the capacity, size, weight, and charging time, which greatly limits the driving distance of EVs [9,10]. Previous research works have investigated different shapes of coil couplers for WPT [14,15,16,17,18]
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