报告详情
A Semi-Analytical Multi-Objective Optimization of Outer-Rotor PM Machines for eVTOL Propulsion Systems
编号：135
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更新：2025-10-13 11:33:17 浏览：19次
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摘要
In order to simultaneously achieve low-speed high torque density and high efficiency in eVTOL direct-drive propulsion systems, an outer-rotor permanent magnet (ORPM) machine is proposed and optimized by semi-analytical multi-objective fast finite element method (FFEM). First, the initial pole-slot configuration and structure of this ORPM machine are discussed. Next, based on the machine loss model, a loss calculation platform is established by using a fast finite element and semi-analytical algorithm. Then, the multi-physics and multi-objective optimization design goals, including torque, torque ripple, and efficiency, are defined for this ORPM machine, with corresponding objective functions and constraints established. Furthermore, optimization calculations are performed using the NSGA-II algorithm, yielding the Pareto front of optimal solutions. Finally, results demonstrate that compared to conventional finite element simulation, the proposed method reduces single-run simulation time by nearly 52%, increases torque density by 27%, and improves overall efficiency by 1%. Compared to traditional finite element methods (FEM), this semi analytical method significantly enhances the computational efficiency for machine loss.
关键词
eVTOL propulsion system,Outer-rotor permanent magnet machine,AC copper loss,semi-analytical method,fast finite element method,multi-objective optimization
报告人
Zhe Guo
Student Huazhong University of Science and Technology稿件作者
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重要日期
-
会议日期
11月07日
2025
至11月09日
2025
-
10月12日 2025
初稿截稿日期
-
10月30日 2025
注册截止日期
主办单位
IEEE西南交通大学IAS学生分会
承办单位
西南交通大学电气工程学院
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
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