转子槽参数对开槽实芯转子永磁电机的影响研究  

Influence of rotor slots parameters on permanent-magnet motor with slotted solid rotor

作　　者：上官璇峰[1] 李正修 蒋思远[1] 

机构地区：[1]河南理工大学电气学院,河南焦作454000

出　　处：《机电工程》2017年第11期1293-1298,共6页Journal of Mechanical & Electrical Engineering

摘　　要：针对小功率感应电动机效率较低、功率因数不高等问题,对已有的三相感应电动机改造为一种新型同步电机-开槽实心转子自起动永磁同步电动机进行了研究。对Y90L-4,1.5 k W型感应电动机进行了分析,利用其定子,重新设计一新型转子。所设计的转子采用实芯结构,沿转子铁芯外圆周开槽,且铁芯内置永磁极。利用有限元计算并分析了转子槽参数对电机自起动能力和稳态运行性能的影响,归纳出了其中的规律性。最后对比了感应电动机和基于改进的开槽实心转子自起动永磁同步电动机的起动和稳态运行性能。研究结果表明:开槽实心转子自起动永磁同步电动机的起动转矩倍数更大,不同负载转矩下的功率因数更高。Aiming at the low efficiency and power factor of the low power induction motor,a new motor-line-start permanent magnet synchronous motor with slotted solid rotor was studied. which was transformed by existing three-phase induction motor,The motor developed by utilizing the stator of the Y90 L-4,1. 5 k W induction motor and redesigning the rotor was presented after the analysis for the induction motor.With a solid structure,the rotor was grooved along the outer circumference of its core,which contained built-in permanent magnet poles.Through the finite element calculation,the influence of rotor grooves parameters on the line-start ability and steady-state performance of the motor were analyzed,then the regularity was summarized. Finally,the starting and steady-state performance were compared between the induction motor and based on the improved LSPMSM with slotted solid rotor. The results indicate that the LSPMSM with slotted solid rotor has bigger starting torque ratio and higher power factor under different load torque than that of the induction motor.

关 键 词：开槽实芯转子 永磁同步电动机 自起动 稳态运行性能 

分 类 号：TH39[机械工程—机械制造及自动化] TM351[电气工程—电机]