Low cogging torque and high efficient 3-phase spindle motors by reshaping magnetic circuit profiles
Magnetics, IEEE Transactions（2001）
摘要
The dynamic characteristics of a 3-phase spindle motor with 12-poles and 9-slots can be improved by reshaping the magnetic circuit profiles. The stator cores were designed with different ratios of x/y where x is the gap angle between 2-slots and y is the expanded angle of a slot. Experiment and finite element analyses (FEA) results show that x/y ratio of 1/2.5 is an optimal design in achieving dynamic performance for DVD drives applications
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关键词
brushless machines,finite element analysis,magnetic circuits,magnetic cores,small electric machines,stators,torque,DVD drive,cogging torque,dynamic characteristics,efficiency,finite element analysis,magnetic circuit,stator core,three-phase spindle motor,
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