关键词: 异步起动永磁同步电机, 铁氧体, 有限元分析, 非均匀分布

Abstract:

The line start permanent magnet synchronous motor (LSPMSM) has attracted more and more attention, however, it is not widely applied because of the high price of NdFeB permanent magnet. A new type of line start motor topology based on the nonuniform distribution of the rotor bar of ferrite permanent magnetic material was proposed. Compared with the traditional way of the uniform arrangement of the rotor cage, the new structure can effectively improve the steady state performance of the motor. The motor rotor structure was further optimized to improve the starting and synchronizing capability of the motor. The finite element method was used to simulate the motor, and the results show that the proposed ferrite line start permanent magnet motor can effectively improve the performance of the traditional line start motor.

Key words: line start permanent magnet synchronous motor, ferrite, finite element analysis, nonuniform distribution