An Enhanced Axial-flux Magnetic-geared Machine with Dual-winding Design for Electric Vehicle Applications  

作　　者：Weinong Fu Qinying Wu Shuangxia Niu Yuanxi Chen Xinhua Guo 

机构地区：[1]Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen,518055,China [2]college of information science and engineering,Huaqiao University,Fujian,361021,China [3]IEEE [4]The Hong Kong Polytechnic University,Hong Kong,999077,China

出　　处：《CES Transactions on Electrical Machines and Systems》2023年第3期239-247,共9页中国电工技术学会电机与系统学报（英文）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 52277049);the Industry-university-research Cooperation Project in Fujian Province University and Enterprise (Grant No. 2022H6026);the National Key Research and Develop Plan,Special Project of “New Energy Vehicles”(Grant No. 2022YFB2502802-2-1)。

摘　　要：Axial-flux magnetic-geared machine(MGM) is a promising solution for electric vehicle applications for combining the virtues of both axial-flux electric machine and magnetic gear. However, generalized MGMs are limited by the torque density issue, accordingly inapplicable to industrial applications. To solve the abovementioned issue, an improved axial-flux magnetic-geared machine with a dual-winding design is proposed. The key merit of the proposed design is to achieve enhanced torque performance and space utilization with the proposed design, which installs a set of auxiliary winding between modulation rings. With the proposed design, overload protection capability, and fault-tolerant capability can be also achieved, for the proposed machine can work with either the excitation of armature windings or auxiliary windings. The pole-pair, slot combination, and parametric design is studied and optimized by the 3d finite-element method and designed C++ optimization software. Electromagnetic analysis and performance comparison indicate that the proposed machine can achieve a torque enhancement of 68.6% compared to the comparison machine.

关 键 词：Axial-flux Dual-winding Magnetic-geared machine Torque enhancement 

分 类 号：U469.72[机械工程—车辆工程]