In order to effectively improve the power factor of the squirrel-cage induction motor,a novel type of squirrel-cage induction motor based on permanent magnetic auxiliary rotor and modified magnetic barrier is proposed by improving the rotor structure of the traditional three-phase quadrupole squirrel-cage induction motor.A two-dimensional transient finite element analysis method is adopted to compare and analyze the performance differences between the proposed and the traditional induction motor,in terms of the magnetic path distribution,magnetic density,power factor and efficiency.The results illustrate that the proposed induction motor can increase the power factor to 0.86～0.98 and the maximum efficiency can reach 95.5％.The new induction motor can operate more efficiently with an optimized power factor.
关键词
笼型感应电机/功率因数/永磁辅助转子/改进磁障/有限元分析
Key words
squirrel-cage induction motor/power factor/permanent magnetic auxiliary rotor/improved magnetic barrier/finite element analysis
维普
万方数据