自起动永磁同步电动机稳态运行鼠笼电流分析  

Damper Current Analysis of Line-Start RE Permanent Magnet Synchronous Motor in Steady-State Operation

作　　者：贾宏新[1] 符荣[2] 窦满锋[3] 

机构地区：[1]上海电力学院,上海200090 [2]渭南师范学院,陕西渭南714000 [3]西北工业大学,陕西西安710072

出　　处：《电机与控制应用》2010年第4期13-16,67,共5页Electric machines & control application

基　　金：上海电力学院人才引进基金(k2008-46);上海市教育委员会重点学科建设项目资助(J51301)

摘　　要：通过理论分析和有限元仿真,对定子绕组采用△联接的自起动永磁同步电动机的气隙磁场、转子阻尼绕组的电流、转矩、转速、损耗等进行分析,可以得出定子绕组采用△联接时,不仅会大大增加稳态运行时的转子铜耗,还会引起转矩、转速的波动。因此,定子绕组应慎用△联接。将△联接与Y联接的电机做了对比分析。Through theoretical analysis and finite element simulation,the air gap magnetic field,rotor damper winding current,torque,speed and power losses were analyzed for the line-start REPMSM in steady-state operation.The results showed that when the stator windings are △ connected,not only the rotor damper winding current would greatly increase,but also cause torque,speed fluctuations.So compared with Y connected windings type,the △ type should be carefully used.

关 键 词：阻尼绕组 稀土永磁同步电动机 转子铜耗 

分 类 号：TM351[电气工程—电机]