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Abstract:
Inductive power transfer enjoys the advantages of convenience and adaptability to various application scenarios. However, the coil misalignment normally cannot be avoided in practical applications, which can cause a dramatic decline of the mutual inductance and a sharp fluctuation of the output. To solve this issue, this article proposes an inductor-capacitor (LC) squared-compensated topology based on three integrated and decoupled transmitting coils. The simple series compensation is adopted on the secondary side, forming an LC squared series topology with a constant-current (CC) output. The receiving coil has couplings with the first and third transmitting coils. Thus, the output is related to the two mutual inductances, which can be optimized for a smooth output against misalignment with a proper design of the magnetic couplers. The mathematical model is established and analyzed. The experimental results obtained from the prototype reveal that the output fluctuates less than 6% from the central to the boundary positions. Also, a CC output independent of the load is realized. Compared with previous methods, the proposed method is a low-cost solution to achieve misalignment tolerance.
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IEEE TRANSACTIONS ON POWER ELECTRONICS
ISSN: 0885-8993
Year: 2024
Issue: 4
Volume: 39
Page: 4850-4857
6 . 6 0 0
JCR@2023
Cited Count:
WoS CC Cited Count: 1
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
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