Self-Decoupled and Integrated Coils for Modular Multi-Transmitter Wireless Power Transfer Systems

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Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2022-11

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en

Pages

6

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IEEE Transactions on Power Electronics, Volume 37, issue 11, pp. 12962-12967

Abstract

The use of multiple transmitters (Tx) has been an attractive solution for enabling free-positioning wireless power transfer (WPT) in a large area. One of the key challenges in such multi-Tx WPT systems is the cross-coupling between Tx coils. This letter proposes a compact self-decoupled Tx coil solution for multi-Tx WPT systems. The measured cross-coupling between Tx coils has been reduced by 95% compared to conventional coil designs. Additionally, an integration method for a compensation inductor with the main Tx coil is proposed. Therefore, the coil design proposed in this letter facilitates creation of fully modular and scalable Tx coils for multi-Tx WPT systems. The proposed designs are experimentally verified in a laboratory prototype.

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Keywords

Coils, Couplings, Ferrites, Inductance, Inductors, Integrated coil, multi-transmitter wireless power, Prototypes, self-decoupled coils, Topology

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Citation

Jayathurathnage, P, Liu, Y & Kyyra, J 2022, ' Self-Decoupled and Integrated Coils for Modular Multi-Transmitter Wireless Power Transfer Systems ', IEEE Transactions on Power Electronics, vol. 37, no. 11, pp. 12962-12967 . https://doi.org/10.1109/TPEL.2022.3181508