A comprehensive overview of inductive pad in electric vehicles stationary charging

Mohamed, Ahmed; Shaier, Ahmed A.; Metwally, Hamid; Selem, Sameh I.

doi:10.1016/j.apenergy.2020.114584

Cited by 73 publications

(34 citation statements)

References 137 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ahmed et al compared most of the structures based on his knowledge. The comparison was achieved, considering several factors, such as shape, coupling performance, misalignment tolerance, shielding, polarization, interoperability, magnetic flux, and charging zone [107].Table 5 and Table 6 compares single sided coils Table 7 and Table 8 compares double sided coils. The dual coupled transmitters with multiple inverters proposed in [108] to achieve high power transmission.…”

Section: A Magentic Coupling Padmentioning

confidence: 99%

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Bharatiraja²,

2021

View full text Add to dashboard Cite

Considering a future scenario in which a driverless Electric Vehicle (EV) needs an automatic charging system without human intervention. In this regard, there is a requirement for a fully automatable, fast, safe, cost-effective, and reliable charging infrastructure that provides a profitable business model and fast adoption in the electrified transportation systems. These qualities can be comprehended through wireless charging systems. Wireless Power Transfer (WPT) is a futuristic technology with the advantage of flexibility, convenience, safety, and the capability of becoming fully automated. In WPT methods resonant inductive wireless charging has to gain more attention compared to other wireless power transfer methods due to high efficiency and easy maintenance. This literature presents a review of the status of Resonant Inductive Wireless Power Transfer Charging technology also highlighting the present status and its future of the wireless EV market. First, the paper delivers a brief history throw lights on wireless charging methods, highlighting the pros and cons. Then, the paper aids a comparative review of different type's inductive pads, rails, and compensations technologies done so far. The static and dynamic charging techniques and their characteristics are also illustrated. The role and importance of power electronics and converter types used in various applications are discussed. The batteries and their management systems as well as various problems involved in WPT are also addressed. Different trades like cyber security economic effects, health and safety, foreign object detection, and the effect and impact on the distribution grid are explored. Prospects and challenges involved in wireless charging systems are also highlighting in this work. We believe that this work could help further the research and development of WPT systems..

show abstract

Section: A Magentic Coupling Padmentioning

confidence: 99%

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Bharatiraja²,

2021

View full text Add to dashboard Cite

show abstract

“…The linear amplifier is supplied by power sources Diametral P230R51D. Both the primary and the secondary use DD pads [15,26]. Each coil inductance is compensated by a capacitive decade to provide control over f 0p and f 0s .…”

Section: Measurement Setupmentioning

confidence: 99%

Novel Method of Coupling Coefficient Estimation Based on the Bifurcation Phenomena in Inductive Power Transfer

2021

View full text Add to dashboard Cite

Inductive power transfer (IPT) applications, such as stationary charging of electric vehicles (EVs), at least moderate coupling between the coils to achieve high efficiency, but the coefficient k typically varies between of 0.1 to 0.4, depending on the displacement of the coils according to SAE J2954. Thus, accurate and reliable methods for estimation of k are required for positioning of the EV to achieve optimal alignment with the charging pad. Additionally, in IPT, numerous control strategies are available for regulating output power and optimizing system efficiency that require an accurate estimate of the mutual inductance or k. However, existing estimation methods tend to require detailed a-priori information of a large number of circuit parameters, or they need measurement of currents or voltages in both primary and secondary sides. This paper presents a preliminary evaluation of a novel, primary-side method to estimate k, which is based solely on the frequency response of the input phase while operating the system in bifurcation. The method does not require any additional measurements of the system parameters. The theoretical background of the method is presented together with the description of the measurement procedure. The method is experimentally verified and compared with two currently used estimation methods. According to the presented experimental evaluation, the proposed method estimates k with an error of 3.62% with respect to the reference over the evaluated range of 0.08 to 0.36. In addition, we demonstrate that the presented method is resilient to detuning.

show abstract

“…The publications on IPT systems use rated power of 1 kW [2], 5 kW, 7.7 kW, 11 kW, 22 kW, 50 kW, and 100 kW from national laboratories, research centers, and universities at the frequency range of 20 to 150 kHz, air gap of 100 to 265 mm in the circular coupler DD, solenoid, square, bipolar, and rectangular cores and coils. The dc-to-dc and grid-to-battery efficiency reported in these publications ranged from 80 to 96.5%, with the coil-to-coil efficiency of 93 to 98% [9,10].…”

Section: Introductionmentioning

confidence: 97%

“…In addition, UNPLUGGED developed a 50 kW station. The world champions in wireless EV charging stations range from 30 to 180 kW WPT [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

10 kW Inductive Wireless Power Transfer Prototype for EV Charging in Thailand

et al. 2022

View full text Add to dashboard Cite

The electric vehicle (EV) market is rising despite the COVID-19 pandemic in Thailand and the rest of the world. The Energy Policy and Planning Office, Ministry of Energy, is supporting the development of EV charging stations in Thailand. However, recent research published by Thais on the subject does not involve more than 1.24 kW wireless power transfer (WPT), whereas commercial EVs need at least 3.5 kW charging facilities. This study aims to develop a 10 kW WPT for EV charging in Thailand. The experimental procedure firstly required the design of block ferrite EE55 cores. Secondly, the transmitter and receiver coils were constructed from homemade Litz wire. Thirdly, the prototype magnetic parameters were measured and simulated. A 10 kW high-frequency inverter was then built and tested. The 10 kW prototype IPT system was subsequently simulated, constructed, and characterized. The results revealed that when the prototype IPT system was applied to the resistive tungsten halogen load during the first stage of the research, at 369.4 V DC input voltage and 32.33 A DC input current, the DC output voltage, and currents were 362.4 V and 29.67 A, respectively, while the maximum DC output power and the dc-to-dc efficiency equated to 10.75 kW and 90.00%, respectively.

show abstract

A comprehensive overview of inductive pad in electric vehicles stationary charging

Cited by 73 publications

References 137 publications

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Novel Method of Coupling Coefficient Estimation Based on the Bifurcation Phenomena in Inductive Power Transfer

10 kW Inductive Wireless Power Transfer Prototype for EV Charging in Thailand

Contact Info

Product

Resources

About