Design of a high frequency Inductively Coupled Power Transfer system for electric vehicle battery charge

Villa, Juan Luis; Sallán, J.; Llombart, A.; Sanz, J.F.

doi:10.1016/j.apenergy.2008.05.009

Cited by 183 publications

(87 citation statements)

References 8 publications

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“…"tuning" the receiver coil via capacitors to the working frequency. The equation expressing the amount of power that the secondary of an IPT system can capture is given by [1] which shows the frequency dependence (o), the current through the transmitter coil (Ip), the factor secondary quality (Qs) and the term representing M2/L2 capture capacity system power:…”

Section: Not Shielded Iptmentioning

confidence: 99%

Inductive Battery Charging System for Electric Vehicles

Villa

Sanz

Sallán

2013

WEVJ

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For pure electric vehicles can reach the expected development and have become an alternative to conventional or hybrid vehicles, it is still necessary to solve various problems. The most important are to increase the autonomy of the vehicle and make charging process as quick and clean as possible. Inductive power transfer systems (IPT) can be the solution to these problems, on the one hand, the weight and size limitations of the batteries required for adequate autonomy can be solved with sufficient load points on public roads that allow "recharge" more frequently batteries or even the possibility that these are loaded by dedicated lanes moving. This is only feasible if the loading process requires no human intervention the maneuver faster and safe for the driver.Furthermore, the ability to recharge the batteries of a contactless EV is now a reality, as evidenced by the high number of patents and published papers, however, for these systems to be part of our daily lives, we need to meet strict international standards for human exposure to electromagnetic fields and, for this, the vehicle must be properly shielded. This paper shows the experimental development of a 30 kW inductive charger with shielding system and the results obtained.

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Section: Not Shielded Iptmentioning

confidence: 99%

Inductive Battery Charging System for Electric Vehicles

Villa

Sanz

Sallán

2013

WEVJ

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“…As shown in [14], each row or column of coils needs to be switched to prevent field cancellation in the centre of the multilayer array to increase the power transfer -this is impractical with high power systems. Coreless coils as shown in [15] are generally not suitable for high power applications with conductive or ferrous materials close to the system. Field shaping with ferrite constrains flux to desired paths improving coupling and preventing excessive energy loss in surrounding materials.…”

Section: Single Phase Charging Padsmentioning

confidence: 99%

Electric Vehicles – Personal transportation for the future

Covic

Boys

Budhia

et al. 2010

WEVJ

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Plug-in EVs are being heralded as a step towards acceptance of pure EV's. However concerns remain regarding uptake by consumers, in terms of range anxiety and economic operation. These concerns are mitigated if energy can be transferred to the vehicle while it is moving, but there are implications in terms of the highway infrastructure required without restricting a vehicle's freedom to move while providing power over air-gaps in excess of 200mm. Such flexibility brings with it problems that are not normally inherent in stationary systems where electronic alignment may be employed to control magnetic coupling.The system must cope with variances as seen by both the power supply and the EV, while ensuring that the power receiver is compatible with both stationary and roadway systems. This paper discusses recent developments in wireless charging infrastructure for EV's and describes systems that may be suitable in future. As vehicles operate on the Grid they will constitute a substantial load that must be managed. A solution is presented here at little infrastructural cost such that the Grid, 'on load' has better power quality than 'off-load'.

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“…Wireless charging systems for EVs have recently received much attention because the wireless charging can provide the convenience to power EVs wirelessly [1,2]. 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.…”

Section: Introductionmentioning

confidence: 99%

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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Design of a high frequency Inductively Coupled Power Transfer system for electric vehicle battery charge

Cited by 183 publications

References 8 publications

Inductive Battery Charging System for Electric Vehicles

Inductive Battery Charging System for Electric Vehicles

Electric Vehicles – Personal transportation for the future

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

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