A review of recent trends in wireless power transfer technology and its applications in electric vehicle wireless charging

Sun, Longzhao; Ma, Dongtang; Tang, Houjun

doi:10.1016/j.rser.2018.04.016

Cited by 131 publications

(64 citation statements)

References 105 publications

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“…[5][6][7][8][9] The wireless power transfer systems which have demonstrated many advantages such as wirelessness, and being waterproof, dustproof and weatherproof are gaining considerable attention for pure and plug-in hybrid electric vehicles. [10][11][12][13] The main scheme of wireless charging is usually to install the transmitting coil and module on the ground and the receiving coil on the chassis of the vehicle. [14][15][16] However, there are many obstacles limiting the application of wireless power transfer technology for electric vehicles charging.…”

Section: Introductionmentioning

confidence: 99%

Thin, stretchable, universal wireless power transfer system for electric vehicle charging

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Thin, stretchable, universal wireless power transfer system for electric vehicle charging

et al. 2020

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“…The WPT technology applied to EVs is divided into static wireless power transmission (SWPT) and dynamic wireless power transmission (DWPT). DWPT charging is developed on the basis of SWPT charging, which can effectively reduce the volume of the vehicle battery pack, increase the cruising range, and further improve the flexibility of the charging process [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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

Tan

Zhao

Ju³

et al. 2019

Energies

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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.

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“…Fortunately, as a novel charging method, wireless power transfer (WPT) technology has been applied on electric vehicles to make up for the inherent defects above of the battery-powered vehicles [10][11][12][13]. Additionally, avoiding the hazards of a tripping, arc or being electrocuted mentioned in [14,15], wireless chargers are more convenient, dependable, and safer than traditional plug-in chargers [16,17]. The WPT technology applied on EVs can be classified into stationary WPT and dynamic WPT [18,19] according to different working modes.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Battery Reduction for an Improved Opportunistic Wireless-Charged Electric Bus

Yin

et al. 2019

Energies

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As an attractive alternative to the traditional plug-in charged electric vehicles (EVs), wireless-charged EVs have recently been in the spotlight. Opportunistically charged utilizing the wireless-charging infrastructure installed under the road at bus stops, an electric bus can have a smaller and lighter battery pack. In this paper, an improved opportunistic wireless-charging system (OWCS) for electric bus is introduced, which includes the opportunistic stationary wireless-charging system (OSWCS) and opportunistic hybrid wireless-charging system (OHWCS) consisting of stationary wireless-charging and dynamic wireless-charging. A general battery reduction model is established for the opportunistic wireless-charged electric bus (OWCEB). Two different battery-reduction models are built separately for OWCEB on account of the characteristics of OSWCS and OHWCS. Additionally, the cost saving models including the production cost saving, the operation cost saving and total cost saving are established. Then, the mathematical models are demonstrated with a numerical example intuitively. Furthermore, we analyze several parameters that influence the effectiveness of battery reduction due to the application of an opportunistic wireless-charging system on an electric bus. Finally, some points worth discussing in this work are performed.

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A review of recent trends in wireless power transfer technology and its applications in electric vehicle wireless charging

Cited by 131 publications

References 105 publications

Thin, stretchable, universal wireless power transfer system for electric vehicle charging

Thin, stretchable, universal wireless power transfer system for electric vehicle charging

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

Analysis of Battery Reduction for an Improved Opportunistic Wireless-Charged Electric Bus

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