解决弧形永磁同步电机力矩波动的新方法  

New Methods for Arc Permanent Magnet Synchronous Motor to Decrease Torque Ripple

作　　者：常九健[1] 樊彦恩[1] 倪田荣[1] 梅亮[1] 

机构地区：[1]中国电子科技集团第三十八研究所,合肥230088

出　　处：《大电机技术》2015年第4期1-4,64,共5页Large Electric Machine and Hydraulic Turbine

摘　　要：本文提出两种解决弧形永磁同步电机力矩波动的新方法。通过把不同定子的不同相绕组串联的方法解决该种电机三相绕组不对称的问题,与初始样机对比,绕组中的电流谐波大大降低。改变定子之间的角度,不同单元电机的边端力矩被相互抵消。以上优化措施,弧形永磁同步电机的力矩波动从3.2%下降到0.65%,力矩波动结果满足实际应用需求。In this paper, we propose two new methods to decrease the torque ripple for an arc permanent magnet synchronous motor(Arc PMSM). By connecting different phase windings of different stators, the problem of unbalanced three-phase winding was solved. Compared with the primary three-phase winding, there were fewer harmonics in the current. Besides, by changing the angle between two stators, the end cogging force of different stators was counteracted. After these methods were adopted on the optimized Arc PMSM, the torque ripple was decreased from 3.2% to 0.65%, which can satisfy the requirement of detect equipment.

关 键 词：弧形永磁同步电机 电流谐波 边端力矩 力矩波动 

分 类 号：TM341[电气工程—电机]