volume | PIER Journals

Abstract

In this paper, to address the low transmission efficiency problem caused by large magnetic leakage and insufficient anti-deviation performance, an integrated symmetrical coil (ISC) structure is proposed. The ISC structure eliminates the need for an external active shielding coil to counteract the leaked magnetic field, and enhances anti-offset performance by utilizing an integrated coil. Additionally, a deep learning-based method for optimizing the coil structure is employed to determine the optimal parameters. The theoretical simulation is validated using Maxwell software, and based on this, the design and parameters of the ferrite structure are adjusted to improve the magnetic shielding effect and transmission efficiency of the coil. Subsequently, a 2 kW prototype experiment is conducted to validate the findings. Results indicate that when the ISC structure is offset by 200 mm in the X-direction, the research demonstrates that the coupling coefficient fluctuation remains below 5%, achieving a transmission efficiency of up to 96.37%. Furthermore, the magnetic leakage is significantly reduced to below 27 μT at 800 mm on both sides of the door in the X-direction.

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Mr. Yu Cheng

Dr. Wei Shi

Dr. Zhongqi Li

Mr. Jianbin Wang

Dr. Zhenhui Wu