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Wireless power transfer (WPT) system has been introduced to many applications. However, it allows very limited misalignment of the power receiver relative to the power transmitter, which is not suitable for some applications such as electric vehicle (EV) wireless charging. This paper presents methods to improve output stability over large misalignment from the perspective of compensation topology...
Wireless power transfer (WPT) is the preferred charging method for electric vehicles (EVs) powered by battery and supercapacitor. In this paper, a novel WPT system with constant current charging capability for sightseeing car with supercapacitor storage is designed. First, an optimized magnetic coupler using ferrite cores and magnetic shielding structure is proposed to ensure stable power transfer...
This paper focuses on the design of the magnetic coupler in the wireless charging system for electric vehicles. A solenoid type magnetic coupler is used for the better ability of magnetic coupling than the plate type magnetic coupler under the condition of mid-range wireless power transfer. The factors of coupling coefficient are analyzed in two kinds of ways, magnetic circuit theory and mutual inductance...
Wireless power transfer (WPT) systems with square shaped ferrite core are widely used in various applications because of its simplicity. However, it allows very limited lateral misalignment of the power receiver relative to the power transmitter and suffers from big amount of magnetic cores, which is not suitable for some applications such as electric vehicle wireless charging. This paper presents...
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