A Biphase Low-Loss Narrow-Rail System with Uniform Output Power for EV DWPT
摘要
The DWPT system with single-phase bipolar narrow-rail has the advantages of high-power density and large lateral misalignment tolerance. However, this structure has significant power fluctuations and power zero points. This article pro-poses a biphase narrow rail that has two windings excitated by two currents with a difference of 90° as a transmitter that can achieve uniform power output in the DWPT system. Besides, the copper and core losses of biphase rails are significantly lower than the values of single-phase rails when the output power is equal.