A Three-Phase Inductive Power Transfer System for Roadway-Powered Vehicles

Covic, Grant A.; Boys, J.T.; Kissin, M.L.G.; Lu, Han

doi:10.1109/tie.2007.904025

Cited by 408 publications

(132 citation statements)

References 22 publications

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“…1. In our experiments, we represent stations as self loops to allow vehicles to easily avoid the station, but the framework is more general and allows any type of graph, e.g., to support even roadwaypower vehicles (contactless charging while driving) [27].…”

Section: A the Ev Routing Problemmentioning

confidence: 99%

Intention-Aware Routing of Electric Vehicles

Weerdt

Stein

Gerding

et al. 2016

IEEE Trans. Intell. Transport. Syst.

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Abstract-This paper introduces a novel intention-aware routing system (IARS) for electric vehicles. This system enables vehicles to compute a routing policy that minimizes their expected journey time while considering the policies, or intentions, of other vehicles. Considering such intentions is critical for electric vehicles, which may need to recharge en route and face potentially significant queueing times if other vehicles choose the same charging stations. To address this, the computed routing policy takes into consideration predicted queueing times at the stations, which are derived from the current intentions of other electric vehicles. The efficacy of IARS is demonstrated through simulations using realistic settings based on real data from The Netherlands, including charging station locations, road networks, historical travel times, and journey origin-destination pairs. In these settings, IARS is compared with a number of state-of-the-art benchmark routing algorithms and achieves significantly lower average journey times. In some cases, IARS leads to an over 80% improvement in waiting times at charging stations and a more than 50% reduction in overall journey times.

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Section: A the Ev Routing Problemmentioning

confidence: 99%

Intention-Aware Routing of Electric Vehicles

Weerdt

Stein

Gerding

et al. 2016

IEEE Trans. Intell. Transport. Syst.

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“…The LC resonance occurs at a particular frequency called resonance frequency at which the inductive reactance (X L = 2πf L) is equal to the capacitive reactance (X C = 1/2πf C), leads to the maximum energy transfer from the transmitting coil to receiving coil. The resonant frequency (f ) of the transmitting and receiving coil is determined by the well known formula [3] …”

Section: Wireless Charging Design Operating Conditions and Mechanismmentioning

confidence: 99%

“…The wireless energy transfer is based on the strongly coupled magnetic resonance mechanism [3]. When the resonant transmitter and receiver coils are in the midrange proximity (distance equal to several times of resonant coil size) their near fields will strongly couple with each other.…”

Section: Wireless Charging Design Operating Conditions and Mechanismmentioning

confidence: 99%

“…Roadway electric vehicle applications using conventional inductive coupling [3,4] and microwave energy transmission [5] have been proposed for more than two decades, but till date there has been only limited commercial development due to the difficulties of inconvenience and efficient only for very short range distance. As electric vehicles make use of large amounts of energy, any loss in energy efficiency due to the energy transfer process from the source to the vehicle, will be significant.…”

Section: Introductionmentioning

confidence: 99%

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Study of Resonance-Based Wireless Electric Vehicle Charging System in Close Proximity to Metallic Objects

Kar¹,

Nayak²,

Bhuyan

et al. 2014

PIER M

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Abstract-A typical magnetic resonance coupling based wireless Electric Vehicle (EV) charging system consists of a transmitting coil at the charging station and a receiving coil in the vehicle. In order to maintain good energy transfer efficiency of the wireless charging system, the effect of the proximal metallic object in the vicinity of the receiving coil has been investigated. Both from the simulation and experimental measurement, it has been observed that the resonance based wireless energy transfer system is very sensitive to the nearby metallic objects, leading to significant deterioration in energy transfer efficiency. This effect on the energy transfer efficiency is also seen to be different for different physical spacing between the transmitting and receiving coils. It is also found that the operating resonant frequency for optimum energy transfer efficiency changes with the metallic object in close proximity to the receiving coil. The simulated results well agree with the experimental results. The analysis will provide future guidelines for designing an efficient resonance coupling based wireless charging system for EVs even in the presence of metallic objects.

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“…Researches with respect to this field focus on the design of the high frequency inverter [3], [4], the optimization design of the resonators [3], [5] and the system structures [6]. In order to resolve existing problems such as the low energy density of the battery, frequent charging and high cost due to a heavy battery, on-road charging for EVs has been proposed [7]- [9]. If EVs can be powered while driving, battery capacity can be reduced quite a lot.…”

Section: Introductionmentioning

confidence: 99%

A Topological Transformation and Hierarchical Compensation Capacitor Control in Segmented On-road Charging System for Electrical Vehicles

Han¹,

Tan²,

Huang³

et al. 2016

Journal of Power Electronics

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Experiencing power declines when the secondary coil is at the middle position between two primary coils is a serious problem in segmented on-road charging systems with a single energized segmented primary coil. In this paper, the topological transformation of a primary circuit and a hierarchical compensation capacitor control are proposed. Firstly, the corresponding compensation capacitors and receiving powers of different primary structures are deduced under the condition of a fixed frequency. Then the receiving power characteristics as a function of the position variations in systems with a single energized segmented primary coil and those with double segmented primary coils are analyzed comparatively. A topological transformation of the primary circuit and hierarchical compensation capacitor control are further introduced to solve the foregoing problem. Finally, an experimental prototype with the proposed topological transformation and hierarchical compensation capacitor control is carried out. Measured results show that the receiving power is a lot more stable in the movement of the secondary coil. It is a remarkable fact that the receiving power rises from 10.8W to 19.2W at the middle position between the two primary coils. The experimental are in agreement with the theoretical analysis.

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A Three-Phase Inductive Power Transfer System for Roadway-Powered Vehicles

Cited by 408 publications

References 22 publications

Intention-Aware Routing of Electric Vehicles

Intention-Aware Routing of Electric Vehicles

Study of Resonance-Based Wireless Electric Vehicle Charging System in Close Proximity to Metallic Objects

A Topological Transformation and Hierarchical Compensation Capacitor Control in Segmented On-road Charging System for Electrical Vehicles

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