[1]赵津,张庆,魏晓晗,等.联合控制策略与多物理域有限元仿真的异步电机软启动瞬态振动分析[J].西安交通大学学报,2020,54(07):158-167.[doi:10.7652/xjtuxb202007019]
 ZHAO Jin,ZHANG Qing,WEI Xiaohan,et al.Transient Vibration Analysis of Asynchronous Motor in Soft Startup Process Using Co-Simulation on Control Strategy and Multi-Physical Domain Finite Element Method[J].Journal of Xi'an Jiaotong University,2020,54(07):158-167.[doi:10.7652/xjtuxb202007019]
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联合控制策略与多物理域有限元仿真的异步电机软启动瞬态振动分析
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《西安交通大学学报》[ISSN:0253-987X/CN:61-1069/T]

卷:
54
期数:
2020年第07期
页码:
158-167
栏目:
出版日期:
2020-07-08

文章信息/Info

Title:
Transient Vibration Analysis of Asynchronous Motor in Soft Startup Process Using Co-Simulation on Control Strategy and Multi-Physical Domain Finite Element Method
文章编号:
0253-987X(2020)07-0158-10
作者:
赵津1 张庆12 魏晓晗1 马程鹏1
1.西安交通大学机械工程学院, 710049, 西安; 2.西安交通大学现代设计及转子轴承系统教育部重点实验室, 710049, 西安
Author(s):
ZHAO Jin1 ZHANG Qing12 WEI Xiaohan1 MA Chengpeng1
1. School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China; 2. Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, Xi’an 710049, China
关键词:
瞬态振动 异步电机 软启动 电磁力
Keywords:
transient vibration induction motor soft-startup electromagnetic force
分类号:
TM343
DOI:
10.7652/xjtuxb202007019
文献标志码:
A
摘要:
为抑制异步电机软启动过程因电磁力所致的瞬态振动,提出了一种联合控制策略与多物理域有限元仿真的电机瞬态振动分析方法。构建了电机软启动过程的电磁力解析模型,用于定性分析低阶电磁力波频率和幅值在启动过程中的变化规律。以直流换流站的主泵电机为研究对象,考虑电机输入和负载之间的耦合影响,建立其软启动过程的仿真模型,为后续的电磁力分析提供初始条件; 基于准稳态假设将电机软启动过程看作是多个离散的准稳态工况点的集合; 采用二维电磁有限元计算每个准稳态工况点的瞬态磁场,对所有准稳态下的电磁力插值拟合以获取整个启动过程的电磁力,作为振动仿真的激励; 通过三维完全法瞬态动力学计算随时空变化的瞬态电磁力所引起的结构振动响应。仿真结果在时域波形和频域成分两方面均与现场实测振动信号较好地吻合,该方法可为分析各型电机在非稳态工况下产生的瞬态振动提供参考。
Abstract:
To reduce the transient vibration induced by electromagnetic force during the soft-startup process of an asynchronous motor, a method for analyzing the transient vibration using co-simulation on control strategy and multi-physical domain finite element method(FEM)is presented. An electromagnetic force analytical model to qualitatively analyze the frequency and amplitude of low-order electromagnetic force in the starting process is constructed. Aiming at the coupling effect between the input and the load, a simulation model of main pump motor during soft-startup process is established to provide initial conditions for subsequent electromagnetic analysis. Based on the quasi-steady state assumption, the motor’s soft-startup process is regarded as a set of discrete quasi-steady states. Each transient magnetic field under quasi-steady state is evaluated by the 2D electromagnetic FEM, then all the electromagnetic forces are interpolated to obtain the electromagnetic force in the entire startup process, which will be used as the excitation of vibration simulation. The 3D transient dynamics is used to calculate the structure vibration response caused by the electromagnetic forces. The calculated results agree well with the measured vibration signals in both time domain and frequency domain. This method may be taken as a reference for analyzing transient vibration of various types of motors under unsteady working conditions.

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备注/Memo

备注/Memo:
收稿日期: 2019-10-16。作者简介: 赵津(1990—),男,博士生; 张庆(通信作者),男,副教授,博士生导师。基金项目: 国家重点研发计划资助项目(2018YFB0606104); 国家自然科学基金资助项目(51675405)。
更新日期/Last Update: 2020-07-10