摘要
本文首先采用分离变量法推导了位于定、转子间均匀环形气除中单根长直载流导线磁场的级数解；然后介绍了应用该级数解计算电机电枢反应磁场、永磁场的方法；最后应用该级数解获得了考虑定、转子曲率影响的均匀气隙电机不饱和主电抗与谐波电抗表达式。比较表明，当电机气隙和定、转子半径可比拟（尤其对于极对数较大的情况）时，考虑与不考虑定、转子曲率两种计算方法给出的不饱和主电抗、谐波电抗之间存在巨大的差异。考虑定、转子曲率时的计算结果更加接近实测结果。
The series solution for magnetic field of single long line curs3nt in ring-shaped airgap between iron stator and rotor is deduced, and then using this solution tO solve the armature reaction field and permanent magnet field are introduced. Finally, the unsaturated main inductance and harmonic inductance of uniform airgap motor taking the stator and rotor arcuates into consideration are obtained from the series solution.The comparison shows that when the airgap length is comparable to the stator and rotor radii, the conventional inductance formula ignoring arcuates will bring large error.
出处
《电工技术学报》
EI
CSCD
北大核心
1995年第2期38-42,共5页
Transactions of China Electrotechnical Society
关键词
气隙
磁场
级数
计算
Uniform airgap motor Magnetic field series solution Inductance calculation Permanent magnet field calculation
