基于伪微分算法的混合磁悬浮地球仪  

Suspending Globe With Hybrid-excited Magnets Based on PDF

作　　者：卢志远[1] 李德胜[1] 王玮[1] 刘喆[1] 郭巧红[1] 

机构地区：[1]北京工业大学机电技术研究所,北京100022

出　　处：《北京工业大学学报》2007年第10期1021-1025,共5页Journal of Beijing University of Technology

基　　金：北京工业大学研究生科技基金(Ykj-2006-010).

摘　　要：为实现永磁电磁混合悬浮地球仪的稳定悬浮控制,采用伪微分反馈控制算法进行了力学和运动学分析,建立了系统数学模型,推导出控制对象及控制系统的传递函数,并对其稳态性能进行了理论分析.研究结果表明,伪微分反馈控制策略针对混合磁悬浮系统非线性和固有的不稳定性具有鲁棒性和控制精度高的特点.In order to realize the suspending control of the globe with hybrid-excited magnets, the paper adopts a new control arithmetic pseudo-derivative-feedback （PDF）. Based on the arithmetic the paper studies the mathematical model of the system by ways of mechanics analysis and theoretical calculation. It deduces the transferring functions of the controlled object and the controlled system, and analyses its control capability. The study results show that the PDF control solution possess the characteristics of robustness and high control precision, comparing the nonlinear instability of the hybrid-excited magnet system.

关 键 词：混合磁悬浮 伪微分反馈控制 地球仪 

分 类 号：TM359.9[电气工程—电机] TP271.62[自动化与计算机技术—检测技术与自动化装置]