The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A good magnetic design of wireless Electric Vehicle (EV) charging system requires accurate characterization of the equivalent circuit parameters. This is while taking into consideration the proximity effect of the magnetic core and the conductive shielding layers. In the literature, such analysis is done using 3D finite element analysis (3DFE), which makes the design process time consuming and computationally...
A dynamic wireless charging system for electric vehicles (EVs) is expected to extend the limited driving distance of EVs. As the transmitting efficiency changes according to motion of the vehicle in dynamic charging, an efficiency maximization method is important. Previous research has proposed secondary-side efficiency control based on mutual inductance estimation to simplify the ground facilities,...
This paper briefly overviews the design considerations, related equations and conditions for the magnetically coupled coils having low leakage magnetic fields and high efficiency. As a design example, a coil design for 1kW-class wireless charging system for compact EV is presented and validated via measurement.
The wireless power transfer (WPT) system for electric vehicle (EV) typically has a pair of two magnetically coupled coils with the relatively large air gap between them. The time-varying currents flowing through the coils produce the intense magnetic near field around the coils which is inevitable to transfer the high power wirelessly. In this paper, we investigate the design of the coils with magnetic...
This paper presents an overview of current wireless power transfer (WPT) technologies for the application of electric vehicles (EV) wireless charging. The basic principles of each technology are introduced. Followed by classification, the advantages and limitations of each technology for EV charging are discussed. Promising technologies such as coupled magnetic resonance and magnetic gear technologies...
In this paper, we introduced the overall On-Line Electric Vehicle (OLEV) system and two types of contactless power transfer systems in the OLEV system. Simulation and experimental results for the two types of the systems are given and prototypes of the system constructed are tested.
Wireless power transfer is essential for the spread of Electric Vehicle(EV) usage as it provides a safe and convenient way to charge the EVs. Recently, a highly efficient mid-range wireless power transfer technology using electromagnetic resonance coupling, WiTricity, was proposed. Studies show that the resonant frequencies of the two antennas change according to the air gap in between the antennas...
Future electric vehicles (EVs) will be linked to the electric power system infrastructure; the vehicles will operate through frequent electric charging, as is the case with electric trains. Conventional batteries require a long recharging time; therefore, supercapacitors, rather than batteries, will play an important role in the future for charging of EVs. Recently, we manufactured small EVs powered...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.