电机与控制应用2024，Vol.51Issue(6)：69-77,9.DOI:10.12177/emca.2024.043
基于NEDC路谱的对称与非对称型永磁同步电机优化设计
Optimization Design of Symmetrical and Asymmetric Permanent Magnet Synchronous Motor Based on NEDC Driving Cycle
摘要
Abstract
Permanent magnet synchronous motors used in electric vehicles are needed to consider not only the performance under rated operating conditions,but also the overall efficiency across the entire road spectrum.Based on this,an optimal design method for asymmetric V-shaped interior permanent magnet synchronous motor based on new European driving cycle(NEDC)driving cycle is introduced.The geometric parameters of the upper and lower parts of the permanent magnet in the above asymmetric motor are parametrically modeled as independent parameters.Taking the NEDC efficiency and torque-cost ratio as the optimization objectives,the genetic algorithm is used to optimize the symmetric and asymmetric V-shaped permanent magnet synchronous motors,respectively.Finally,the optimal design point on the Pareto front is selected for comparison of electromagnetic performance.The simulation results show that compared with the symmetrical structure,the asymmetrical rotor structure exhibits stronger torque performance due to the magnetic field offset effect.Therefore,the asymmetric V-shaped permanent magnet synchronous motor exhibits better electromagnetic performance and lower manufacturing cost,and has a broad application prospect in the field of electric vehicles.关键词
非对称V型结构/多目标优化/NEDC路谱/永磁同步电机Key words
asymmetrical V-shaped structure/multi-objective optimization/NEDC driving cycle/permanent magnet synchronous motor分类
信息技术与安全科学引用本文复制引用
江东东,乔振阳,傅为农..基于NEDC路谱的对称与非对称型永磁同步电机优化设计[J].电机与控制应用,2024,51(6):69-77,9.基金项目
省部共建电工装备可靠性与智能化国家重点实验室(河北工业大学)开放课题基金资助(EERI2021003)State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology under Grant(EERI2021003) （河北工业大学）
