无槽永磁直线同步电动机的稳态分析  

Steady-state Analysis of Slotless Permanent Magnet Linear Synchronous Motor

作　　者：刘豪[1] 上官璇峰[1] 袁世鹰[1] 

机构地区：[1]河南理工大学,河南焦作454000

出　　处：《微特电机》2007年第5期13-15,共3页Small & Special Electrical Machines

基　　金：河南省自然科学基金(0611010200)

摘　　要：建立无槽式永磁直线同步电动机分层解析模型,由于电机等效气隙较长、漏磁较大,采用磁化电流法等效永磁体电流密度,电枢电流按实际情况考虑。以矢量磁位作为求解变量得到励磁磁场和电枢反应磁场的二维解。在此基础上求电机的电磁参数:气隙磁密、电磁推力、电感和电势等。进一步分析气隙长度对电机磁场的影响,用有限元法验证解析结果,两种方法所得结果吻合较好,表明该解析法行之有效。Due to larger equivalent air - gap and flux leakage of slotless permanent magnet linear synchronous motor （PMLSM） , magnetizing current method was adopted to obtain equivalent current density of permanent magnet, however arma- ture current was considered in practice. Magnetic vector potential was regarded as variables to gain solution of excitation mag- netic field and armature response magnetic field. Through two - dimensional analytical method, air -gap magnetic flux density, thrust force,inductance, back electromotive force （ back EMF） were computed. Furthermore, different air - gap effect on magnetic field in slotless PMLSM was analyzed. The finite element method （FEM） was confirmed agreement with analytical method, indicating the validity of analytical method.

关 键 词：磁场分析 参数 永磁直线同步电动机 无槽 

分 类 号：TM341[电气工程—电机] TM359.4