Design and Analysis of Slotless High-speed Permanent Magnet Motor With Compound Rotor for Motorized Spindle
Electric spindles are developing towards high precision,high speed,and low loss.The asyn-chronous motors used in the past were unable to meet the development needs of electric spindles due to their low efficiency,low power factor,and rotor heating.In order to further reduce the cogging torque and eddy current losses of electric spindle motors,this paper proposed a new type of composite rotor slotless high-speed permanent magnet motor for electric spindles.Firstly,based on the structural characteristics of the composite rotor slotless high-speed permanent magnet motor,a 10kW,80000r/min motor was taken as the research object.The determination of the main dimensions of the stator and rotor,the design of the stator winding,and the determination of the parameters of the new composite rotor structure were studied,and its electromagnetic design scheme was obtained;Secondly,a characteristic analysis was conducted on the de-signed motor,obtaining magnetic field lines,magnetic density distribution cloud maps,cogging torque,and torque curves,which verified the rationality of the designed motor;Finally,the superiority of the proposed new composite rotor slotless high-speed motor was verified by comparing it with an ordinary slotless high-speed motor.
new compound rotorslotlesshigh-speed permanent magnet motorelectromagnetic design
万方数据
维普
