爪极发电机电磁力及定子振动特性分析  

Analysis of Electromagnetic Force and Stator Vibration for Claw-pole Generator

作　　者：单鹏[1] 马龙[1] 刘爽 

机构地区：[1]辽宁工业大学汽车与交通工程学院,辽宁锦州121001 [2]锦州汉拿电机有限公司,辽宁锦州121013

出　　处：《微电机》2014年第3期33-36,共4页Micromotors

摘　　要：首先建立了车用爪极发电机的场路耦合三维有限元模型,基于该模型使用Ansoft仿真软件分析其电磁场及径向电磁力波,得出力波峰值时的频率值;使用Ansys Workbench软件对定子铁心和带绕组的定子进行模态分析,得出其各阶固有频率,结果表明绕组对定子的固有特性影响较大。通过分析电磁力波仿真结果与模态分析结果,得出对发电机振动影响较大的频率点。这些工作对于在发电机设计阶段避免产生共振提供参考,并对分析电磁噪声奠定基础。First, a field-circuit coupled three-dimensional finite element model of vehicle claw-pole generator was established, then using the simulation software Ansoft to analyze the electromagnetic field and radial e- lectromagnetic force waves, wave peak draw force frequency value by means of this model; using Ansys Workbench software to analysis the modal of stator core and a stator with windings, the natural frequencies of its results show that windings has a greater impact on the inherent characteristics of the stator. By analyzing the simulation results of electromagnetic force wave and modal analysis, people can get the frequencies which had a greater influence on the generator vibration. These works provide a reference to avoid resonance in the generator design stage, and lay the foundation for the analysis of electromagnetic noise.

关 键 词：爪极发电机 径向电磁力 模态分析 振动特性 有限元仿真 

分 类 号：TM341[电气工程—电机]