电磁轴承支承特性分析及优化调节  

Analysis of electromagnetic bearing support characteristics and optimal adjustment

作　　者：吴少男 蒋科坚[1] WU Shaonan;JIANG Kejian(School of Information Science and Technology,Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学信息学院,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2018年第6期739-745,共7页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家自然科学基金项目(11272288);浙江省自然科学基金项目(LY18E050017)

摘　　要：为了使电磁轴承系统具有更好的悬浮稳定性,同时又能保持良好的支承性能,提出了一种电磁轴承支承特性优化调节的数值解析方法。以电磁轴承支承特性基本理论为基础,从电磁轴承系统稳定性和稳定裕度的角度出发,定量研究了支承特性的调节与系统稳定性的关系,并着重分析了系统时滞对支承特性调节的影响。实验结果表明:通过该优化调节方法调节电磁轴承支承特性,系统转子的振幅较小;加时滞模块的电磁轴承系统功率谱幅值明显大于不加时滞模块的系统。这表明该方法有效,时滞对系统支承特性的调节有阻碍作用。In order to make the electromagnetic bearing system have better suspension stability and maintain good bearing performance, a numerical analysis method for optimal adjustment of the bearing characteristics of the electromagnetic bearing was proposed. Based on the basic theory of electromagnetic bearing support characteristics, from the perspective of stability and stability margin of electromagnetic bearing system, the relationship between the regulation of support characteristics and system stability was quantitatively studied, and the influence of time delay on the adjustment of supporting characteristics was and the time delay hinders the adjustment of the support characteristics of the system.

关 键 词：电磁轴承 支承特性 稳定性 稳定裕度 时滞 

分 类 号：TH133[机械工程—机械制造及自动化]