Wireless power transfer technologies for electric vehicle battery charging — A state of the art

Kishan, Dharavath; Nayak, P. Srinivasa Rao

doi:10.1109/scopes.2016.7955812

Cited by 18 publications

(4 citation statements)

References 13 publications

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“…The potential of lengthy WPT with improved efficiency and power level is the most massive advantage of radiative WPT. Unfortunately, this technique cannot yet be practiced for charging EV batteries because it is harmful to human beings (Kishan and Nayak et al ., 2016). Non-radiative WPT included Inductive power transfer (IPT) and capacitive power transfer (CPT) (Al-Saadi et al,2019).For short trips, the efficiency of these WPT technologies was affected by a combination of criteria, such as the air gap between transmitter and receiver, asymmetry, operating frequency, etc.…”

Section: Wireless Power Transfermentioning

confidence: 99%

Modeling and Simulation of Dynamic Wireless Power Transfer Technique for Electric Vehicles

Kumar,

Rathore,

Yadav

2022

INTERNATIONAL CONFERENCE ON POWER ELECTRONICS &Amp; SUSTAINABLE DEVELOPMENT (ICPESD)

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Creating a green and sustainable ecosystem needs to reduce carbon emissions from our plane, this may possible by reducing the usage of fossil fuel-powered vehicles and moving towards electric vehicles (EVs). EVs can be charged either in stationary mode or dynamic mode. By the static charging mode, fully charged EVs can’t travel too far. To extend its range, it will need more batteries. EVs have the possibility of using dynamic wireless charging to enhance their range and minimize the necessity of large battery packs. This paper reviewed a comparison of the different WPT techniques, transmitter coil designing for the dynamic wireless power transfer (DWPT). The air gap between the transmitter coil and receiver coil is responsible for the variation in coupling coefficient and also for the mutual inductance, which is represented. When the EV is in motion on the transmitter track then the EV’s speed and misalignment affect the DWPT system, which is also reviewed. This paper included Modelling and simulation of dynamic wireless power transfer in MATLAB/SIMULINK work and power transfer calculation for EV with 10KWh battery pack in the dynamic condition are also represented.

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Section: Wireless Power Transfermentioning

confidence: 99%

Modeling and Simulation of Dynamic Wireless Power Transfer Technique for Electric Vehicles

Kumar,

Rathore,

Yadav

2022

INTERNATIONAL CONFERENCE ON POWER ELECTRONICS &Amp; SUSTAINABLE DEVELOPMENT (ICPESD)

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“…2) The charging station on the vehicle consists of the receiving coil (RX coil) working at the same resonant frequency of the coupled TX coil. The RX coil output, that is point (4), is connected to an ac/dc converter providing the dc power for batteries in point (5). Sometimes, there is another dc/dc converter that connects the batteries at point (6).…”

Section: Typical Ipt Charging Stations and Measurement Pointsmentioning

confidence: 99%

“…This technology, commonly called inductive power transfer (IPT), or wireless power transfer (WPT), has a number of obvious advantages: it is perfect for autonomous vehicles and excellent to implement in large urban centers, i.e., at the traffic lights, at work, in parking facilities, and so forth. It also makes recharging easy for people with moving disabilities and does not require the use of cables [5]- [8]. WPT charging is realized using two coils, one on the ground and one onboard, which are coupled as resonant circuits having the same frequency.…”

Section: Introductionmentioning

confidence: 99%

A Measurement System for the Characterization of Wireless Charging Stations for Electric Vehicles

Zucca

Squillari²,

Pogliano

2021

IEEE Trans. Instrum. Meas.

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“…For charging, a novel category of stations (CSs) for EVs is entering the market and promises interesting developments, both for the intrinsic convenience of charging and for the prospects of pairing with autonomous driving. In inductive charging [6,7] energy transfer occurs wirelessly, through two resonant coils at a frequency ranging from ten to one hundred kilohertz. The coils are linked to AC-DC converters both on-board and on the ground, where there is also an AC-DC converter.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Overall Efficiency in WPT Stations for Electric Vehicles

et al. 2021

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The on-site assessment of the efficiency of a charging station is not a trivial process and is a topic of discussion for professionals. The efficiency of electric Vehicle Supply Equipment (EVSE), is an important parameter for both the user and the EVSE operator. This paper deals with a particular type of EVSE, using static wireless power transfer (WPT). This paper proposes a clear method to account for the parameters which can affect the correct determination of efficiency, such as in particular the accuracy of the meters and the effect of temperature. This work proposes a method to define the accuracy of the power and efficiency on-site assessment, and is aimed at clarifying that despite distorted waveforms at the charging stations, it is possible to reach a good accuracy in a wide temperature span (expanded uncertainty <0.5% between 5∘C and 40∘C). Analysis initiated from the measurement conditions and the actual waveforms recorded at two WPT EVSEs with differently rated power. This paper paves the way for the possibility of verifying class 0.5 meters on-site, desirable for this type of application. The paper also clarifies that despite the evident presence of voltage and current ripple at the batteries, the weight of the ripple power on the total power is nevertheless lower than 0.1%. Finally, the paper highlights how, for the correct measurement of the ripple, it would be advisable to calibrate the instrumentation in DC and in AC, at a frequency double that of the working frequency of the EVSE coils.

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Wireless power transfer technologies for electric vehicle battery charging — A state of the art

Cited by 18 publications

References 13 publications

Modeling and Simulation of Dynamic Wireless Power Transfer Technique for Electric Vehicles

Modeling and Simulation of Dynamic Wireless Power Transfer Technique for Electric Vehicles

A Measurement System for the Characterization of Wireless Charging Stations for Electric Vehicles

Assessment of the Overall Efficiency in WPT Stations for Electric Vehicles

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