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High-Misalignment-Tolerant IPT Systems With Solenoid and Double D Pads
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AI
J
王
姚
D
DOI：10.1109/TIE.2021.3075841.png)
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Abstract
En 中文
The capability of misalignment tolerance is vital for an inductive power transfer (IPT) system. In this article, a new loosely coupled transformer (LCT) structure with series solenoid and DD pads (SDDP) is proposed to improve the misalignment tolerance of the IPT system. The designed LCT not only has strong misalignment-tolerant capability in the X-direction but also has strong misalignment-tolerant capability in the Y-direction. The fluctuation of mutual inductance is 3.15% within 67.0% misalignment distance of the largest size of the SDDP in the X-direction and 44% misalignment distance of the largest size of the SDDP in the Y-direction. Finally, an LCC/S compensated IPT system with 300 W power is built as an example to demonstrate the performance of the proposed LCT. The output voltage fluctuates with the rated load, which is less than 3.2%, and the efficiency is 90.2-91.3%.
Keywords:
Coils
Inductance
Magnetic flux
Magnetic fields
Couplings
Solenoids
Fluctuations
Inductive power transfer (IPT)
misalignment tolerance
output voltage fluctuation range
solenoid and double D pads (SDDP)
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