爪极混合励磁皮带驱动起动/发电一体机的磁场设计  

Magnetic Field Design of Claw-Pole Hybrid Excitation Belt-Driven Starter Generator

作　　者：王晓远 李娜 赵晓晓 庞炜 Wang Xiaoyuan;Li Na;Zhao Xiaoxiao;Pang Wei(College of Electrical Engineering and Information Tianjin University,Tianjin 300072 China)

机构地区：[1]天津大学电气自动化与信息工程学院,天津300072

出　　处：《电工技术学报》2020年第20期4258-4265,共8页Transactions of China Electrotechnical Society

摘　　要：针对爪极混合励磁皮带驱动起动/发电一体机(BSG)初始设计方案中气隙磁通密度低、磁场调节范围窄、发电性能和低速输出性能较差等问题,该文对BSG电机进行了优化设计。首先介绍该电机的结构特点和磁场调节原理;然后结合三维有限元仿真,对永磁体厚度、气隙大小、定子槽口宽度进行了优化,并对优化前后的电机进行性能对比,优化后的结构具有磁通密度高、波形品质佳、发电性能好和起动转矩大的特点;最后制造样机并进行相关实验。样机实验与有限元分析结果吻合,验证了有限元仿真计算的准确性,进一步证明了分析的正确性。The current design of claw-pole hybrid excitation BSG motor has the problems of low air gap flux density,narrow magnetic field adjustment range,poor power generation performance and low speed output performance.This paper has optimized the design of the motor.Firstly,the structural characteristics and magnetic field adjustment principle of the motor are introduced.A type of three-dimensional finite element method is then applied to optimize the thickness of the permanent magnet,the size of the air gap and the width of the stator slot.Compared with the performance of previous motors,the structure of the optimized motor in this paper has the characteristics of high flux density,good waveform quality,good power generation performance and large starting torque.Furthermore,the prototype test was designed and manufactured.The test results are consistent with the results of finite element analysis,which verifies the accuracy of the finite element simulation.

关 键 词：混合励磁 爪极电机 皮带驱动起动/发电一体机(BSG)系统 磁场调节 

分 类 号：TM315[电气工程—电机]