【摘要】 针对传统电磁振动分析多采用径向电磁集中力加载的方式进行,而忽略切向电磁力对电磁振动的影响的不足,提出了一种基于ANSOFT和MATLAB联合仿真以及ANSYS APDL语言的节点力加载方式,综合考虑电机径向电磁力和切向电磁力对电磁振动的影响。基于该方法,开展永磁同步电机瞬态动力学仿真,分别从时域和频域角度分析径向集中力和节点力加载方式下定子内、外侧变形情况,并建立电磁力、定子结构模态与电磁振动三者之间的内在联系。研究结果表明,时域上切向电磁力使得电机定子齿部切向变形明显大于径向。而在频域上,与切向电磁力密切相关的2阶转矩脉动频率对电磁振动的影响也是不可忽略的。更多还原

【Abstract】 Since the traditional electromagnetic vibration analysis concentrate on radial electromagnetic concentrated force, ignoring the influence of the tangential electromagnetic force. In this paper,a method taking the influence of both radial electromagnetic force and tangential force on electromagnetic vibration into consideration was proposed based on ANSOFT-MATLAB co-simulation and ANSYS APDL programming language.Transient dynamic simulation of permanent magnet synchronous motor was conducted. The inner and outer deformation of stator under radial concentrated force and node force loading mode were analyzed in time domain and frequency domain respectively. Consequently, the interactive correlations among electromagnetic force,stator structure mode and electromagnetic vibration were derived. The simulation results indicate that tangential electromagnetic force results in the deformation of motor stator tooth significantly greater than that of the radial in the time domain. Meanwhile,the second order torque ripple frequency,which is closely related to the tangential electromagnetic force,has a significant influence on the electromagnetic vibration.更多还原