Optimal Design of ICPT Systems Applied to Electric Vehicle Battery Charge

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

doi:10.1109/tie.2009.2015359

Cited by 659 publications

(325 citation statements)

References 21 publications

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“…To understand further the behaviour of efficiency of the WPT system with respect to the load and distance between the two coils a surface plot of the magnitude S21 at the resonance frequency (96.7 kHz) was constructed using (2) and is presented in Fig. 11; the source impedance Z S is 50 Ω as before.…”

Section: D Full Wave Electromagnetic Model Of the Wpt Systemmentioning

confidence: 99%

Numerical and experimental study of the effects of load and distance variation on wireless power transfer systems using magnetically coupled resonators

Rotaru

Tanzania

Ayoob

et al. 2015

IET Science, Measurement & Technology

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This work investigates a series resonant circuit designed to wirelessly transfer power to charge an electrical vehicle battery. A typical approach assumes the load connected to the power transfer system to be constant and then the wireless link efficiency is studied. In practical engineering applications, however, the load and the distance between coils will vary and the efficiency may strongly depend on these variations. The efficiency will also be affected by the presence of massive conducting or shielding structures in the proximity of the wireless system. Here, the authors study these effects with the help of an equivalent circuit extracted from a full wave simulation and correlated with measured results. The authors demonstrate that by changing the load resistance the efficiency of the system can be improved, even for a large separation between the two magnetically coupled resonators; however, the maximum efficiency point may not correspond to the maximum power that can be handled by the system. They then analyse the primary and secondary voltages and currents in support of the above findings.

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Section: D Full Wave Electromagnetic Model Of the Wpt Systemmentioning

confidence: 99%

Numerical and experimental study of the effects of load and distance variation on wireless power transfer systems using magnetically coupled resonators

Rotaru

Tanzania

Ayoob

et al. 2015

IET Science, Measurement & Technology

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“…The optimal design of the IPT system and resonance topology to use has been widely studied [2,3]. Of all the different topologies, we chose in this work the SP-S topology [4], since it has the best performance when there is a possibility of misalignment between coils, and also presents current source nature, it which is suitable for charging batteries.…”

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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“…The wireless power transfer (WPT) technique by magnetic coupling coils has been applied in many fields, such as portable electronic devices [1][2][3][4], electric vehicles [5][6][7], and implanted medical devices [8][9][10][11]. For mid-range air gap between transmitting and receiving coil (the distance between two coils is usually less than eight times the diameter of the coil), the power transfer efficiency is vitally important and must be given priority in applications of high-power or continuous-operation electric devices such as power supply for household appliance, vehicle charging and microwave power transmission.…”

Section: Introductionmentioning

confidence: 99%

New Insight of Maximum Transferred Power by Matching Capacitance of a Wireless Power Transfer System

et al. 2017

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Most research on wireless power transfer (WPT) has been focused on how to achieve a high-efficiency power transfer. Our study found that under the impedance matching for achieving maximum WPT efficiency, the power transferred to the load cannot reach the maximum when a WPT system is supplied by an AC voltage source with constant amplitude. However, the load power or the voltage across the load is essential for a low-power electric device such as the implanted medical device where the transfer efficiency is not the priority to be considered. The paper presents a method for achieving maximum power on the load by matching capacitance in a WPT system with given two-coupled-coils. Three sets of matching capacitances for extreme load power were deduced based on the circuit model considering the coil's resistance, and all these three matching make the WPT system operate at the resonant state. Two sets can make the system achieve the global maximum of load power. One set can make the system achieve the local maximum of load power and reach the power transfer efficiency next to 1. Experimental results verified the theoretical calculations. The results can contribute to the compensation design of a practical WPT system for transferring the maximum power to the load.

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Optimal Design of ICPT Systems Applied to Electric Vehicle Battery Charge

Cited by 659 publications

References 21 publications

Numerical and experimental study of the effects of load and distance variation on wireless power transfer systems using magnetically coupled resonators

Numerical and experimental study of the effects of load and distance variation on wireless power transfer systems using magnetically coupled resonators

Inductive Battery Charging System for Electric Vehicles

New Insight of Maximum Transferred Power by Matching Capacitance of a Wireless Power Transfer System

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