双L型导磁块对开关磁链电机最大调磁性能影响与分析  

Research on maximum flux-regulation characteristics considering end-effect of switched flux permanent magnet machine

作　　者：刘旭[1,2] 段蓉 赵强[1,2] LIU Xu;DUAN Rong;ZHAO Qiang(State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin 300130,China;Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]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,天津300130 [2]河北省电磁场与电器可靠性重点实验室,河北工业大学,天津300130

出　　处：《电工电能新技术》2022年第9期1-9,共9页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金项目(52077055)。

摘　　要：针对开关磁链永磁电机转速范围不易调节的问题,本文在电机定子外围引入了利用端部效应的双L型导磁块,利用漏磁削弱永磁磁链,提高永磁磁链调节能力。分析了使用双L型导磁块后开关磁链电机的弱磁原理,研究了双L型导磁块完全插入后开关磁链电机的电磁性能,解释了电机最大调磁特性与永磁磁链以及直轴电感之间的关系。研究结果表明,使用双L型导磁块不仅削弱永磁磁链,而且增大电枢绕组直轴电感,提高了开关磁链电机的最大调磁能力。与导磁块仅置于定子轭部的方案相比,使用双L型导磁块后,开关磁链电机具有更大的调速范围和恒功率范围。最后,通过一台12/10开关磁链电机进行了实验验证。To solve the problem that the speed range of the SFPM machine is hard to adjust,the double L-FA using the end effect is proposed.By increasing the flux leakage at the end of the machine,the maximum flux-regulation capacity of the motor is improved.In this paper,the mechanical flux-weakening principle of the double L-FA was studied,and the electromagnetic performance of SFPM with double L-FA was analysed.The results show that the maximum flux-weakening capacity of the motor can be improved by weakening the flux and increasing the inductance of d-axis.Compared with the FA placed on the outside of the stator,the double L-FA has better flux-weakening capability and constant power range.Finally,a 12/10 SFPM machine is manufactured to verify the results.

关 键 词：机械调磁 有限元法 双L型导磁块 电磁性能 

分 类 号：TM351[电气工程—电机]