Multi-objective topology optimization of magnetic couplers for wireless power transfer

Issue title: Selected papers from the International Symposium on Applied Electromagnetics and Mechanics - ISEM 2019

Guest editors: Jinhao Qiu, Ke Xiong and Hongli Ji

Article type: Research Article

Authors: Gong, Yunyi^a; | Otomo, Yoshitsugu^a | Igarashi, Hajime^a

Affiliations: [a] Graduate School of information Science and Technology, Hokkaido University, Sapporo, Japan

Correspondence: [*] Corresponding author: Yunyi Gong, Graduate School of information Science and Technology, Hokkaido University, 060 0814, Sapporo, Japan. E-mail: gongyunyi@em.ist.hokudai.ac.jp

Abstract: In this paper, the multi-objective topology optimizations of wireless power transfer (WPT) devices with two different coil geometries are proposed for obtaining the designs with good balance between transfer efficiency and safety. For this purpose, the proposed method adopts the normalized Gaussian network (NGnet) and Non-dominated Sorting Genetic Algorithm II (NSGA-II). In addition, the optimization under the different constraint on ferrite volume is carried out to verify its influence on optimization results. It has been shown that the proposed method successfully provides the Pareto solution to the design problem of the WPT device.

Keywords: Wireless power transfer, topology optimization, Pareto solution, electric vehicles

DOI: 10.3233/JAE-209337

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 64, no. 1-4, pp. 325-333, 2020