TY - JOUR
T1 - A Dual-Coupled LCC-Compensated IPT System with a Compact Magnetic Coupler
AU - Lu, Fei
AU - Zhang, Hua
AU - Hofmann, Heath
AU - Su, Wencong
AU - Mi, Chunting Chris
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2018/7
Y1 - 2018/7
N2 - This paper proposes a dual-coupled LCC-compen-sated inductive power transfer system with a compact magnetic coupler to improve misalignment performance. In the magnetic coupler, the main coils form the first coupling, and compensation inductors are integrated with the main coils to form a second coupling. In the design presented in this paper, the main coils are unipolar and the compensation inductors are in a Double D structure. The fundamental harmonics approximation method is used to analyze the circuit, and the couplings between the main coils and compensation inductors are considered to determine the net power flow. In misalignment cases, it is shown that the coupling between the compensation inductors, and the cross couplings between the compensation inductors and main coils, contribute to increasing the system power. A 3.5 kW prototype is designed and implemented to validate the proposed dual-coupled system. The primary coil size is 450 mm × 450 mm , and the secondary coil size is 300 mm × 300 mm. Experimental results show that the proposed dual-coupled system can significantly improve the misalignment performance, and retains at least 56.8% and 82.6% of the well-Aligned power at 150 mm misalignment in the x-and y-directions, respectively.
AB - This paper proposes a dual-coupled LCC-compen-sated inductive power transfer system with a compact magnetic coupler to improve misalignment performance. In the magnetic coupler, the main coils form the first coupling, and compensation inductors are integrated with the main coils to form a second coupling. In the design presented in this paper, the main coils are unipolar and the compensation inductors are in a Double D structure. The fundamental harmonics approximation method is used to analyze the circuit, and the couplings between the main coils and compensation inductors are considered to determine the net power flow. In misalignment cases, it is shown that the coupling between the compensation inductors, and the cross couplings between the compensation inductors and main coils, contribute to increasing the system power. A 3.5 kW prototype is designed and implemented to validate the proposed dual-coupled system. The primary coil size is 450 mm × 450 mm , and the secondary coil size is 300 mm × 300 mm. Experimental results show that the proposed dual-coupled system can significantly improve the misalignment performance, and retains at least 56.8% and 82.6% of the well-Aligned power at 150 mm misalignment in the x-and y-directions, respectively.
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U2 - 10.1109/TPEL.2017.2748391
DO - 10.1109/TPEL.2017.2748391
M3 - Article
AN - SCOPUS:85029166255
SN - 0885-8993
VL - 33
SP - 6391
EP - 6402
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 7
ER -