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- Title
Study on Anti-Offset Performance of Dynamic Wireless Charging System with Reverse Series Double-Layer Symmetrical Coil for Electric Vehicles.
- Authors
Xiangfei Li; Xin Zhou; Shentao Zou; Yu Cheng; Xiaohua Shu; Xinbo Xiong; Ziyue Gan; Zhongqi Li
- Abstract
In dynamic wireless charging systems for electric vehicles (EVs), the coupling mechanism is difficult to align, which leads to high output voltage fluctuations and low transmission efficiency of the system. A reverse series double-layer symmetrical coil (RSDSC) structure with magnetic core is proposed. First, the mutual inductance characteristics of this structure are analyzed based on its coupling structure. Secondly, a mutual inductance optimization method is proposed to obtain the optimal values of each parameter of the coil and the optimal values of the magnetic core parameters. Finally, a wireless power transfer system is built based on the obtained coil and magnetic core parameters, and the correctness of the structure is verified through simulation and experimentation. The results show that the maximum mutual inductance fluctuation of the structure of RSDSC with magnetic core is only 4.88%, and the efficiency is up to 97.86% when the receiving coil is offset within 50% (20.8 cm) of the outer length of the transmitting coil.
- Subjects
WIRELESS power transmission; ELECTRIC coils; MAGNETIC cores; MUTUAL inductance; MAGNETIC structure; ELECTRIC charge; ELECTRIC vehicles
- Publication
Progress in Electromagnetics Research C, 2024, Vol 141, p41
- ISSN
1937-8718
- Publication type
Article
- DOI
10.2528/PIERC23122101