外转子分数槽永磁同步电动机的谐波分析

In this paper,a fractional-slot external rotor permanent magnet synchronous motor used for elevator was designed.A quite accurate fractional-slot external rotor permanent magnet synchronous motor model was designed and established by a Maxwell 2D module in software Ansoft. Subsequently,the outcomes of the performance calculations of transient magnet field at no-load operations and rated-load operationgs were obtained,proving the correctness and effective-ness of the calculation.Finally,the obtained results were analyzed．The model machine was made according to the design and then tested ,gaining the motor parameters and the data of the controlling system, and comparise them with the simulation data. Then,the air gap flux density was analyzed by MATLAB，proving the effectiveness of the fractional-slot,and provide the basis for the further optimization of the air gap flux density.